SA71, Pembrokeshire

SA71, Pembrokeshire51.6681, -4.9292from your postcode

Mowing

When you can next cut it, and the best slot this weekend.

Best weekend slot

Nothing doing

Verdict: Not worth it

0.6mm of rain falling.

Today evening is your first decent window.

Next mow

Today 6pm–7pm

Verdict: Good to go

grass slightly damp — wet underfoot, 1 hour after the rain

  • Worth watching: Ground still soft. 14mm rain over the last week, medium (loam) soil. A mower will mark it, and a ride-on will rut it. More

The next 10 days

Each row is a day, morning on the left. The more solid a block, the more of the forecast runs agree you can mow. Open a day for the hour-by-hour forecast behind it.

  1. Monday 19 October: 1 hour worth using. 6pm–7pm — grass slightly damp — wet underfoot, 1 hour after the rain
    Monday 19 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictAlready goneAlready goneAlready goneAlready goneAlready goneAlready goneAlready goneForget itForget itForget itForget itForget it0.1mm of rain fallingGood to godarkdark
    Rainchance·······—————————
    Rainmm·······—————0.1———
    Grass·······soakedsoakedsoakedwetwetwetdampdampdamp
    Ground·······firmfirmfirmfirmfirmfirmfirmfirmfirm
    Temp·······11°12°12°13°12°11°12°12°12°
    Windkm/h·······212424251915181921
    Daylight·······✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.10). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Monday 19 October · 6pm–7pmConfident

    6pm–7pm — grass slightly damp — wet underfoot, 1 hour after the rain

    Limiting factor:grass wetness

  2. Tuesday 20 October: 8 hours worth using. 11am–7pm — grass dry — rain earlier that day
    Tuesday 20 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictdarkdarkdarkForget itForget itForget itPrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timedarkdark
    Rainchance————————————————
    Rainmm0.1——————————————0.3
    Grasswetwetwetwetsoakedwetdrydrydrydrydrydrydrydrydrywet
    Groundfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirm
    Temp9°8°7°6°7°10°11°12°13°13°13°14°13°12°10°12°
    Windkm/h9664376681010111010914
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.16). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Tuesday 20 October · 11am–7pmConfident

    11am–7pm — grass dry — rain earlier that day

    Limiting factor:grass wetness

  3. Wednesday 21 October: nothing to cut. Nothing to cut — the grass is barely growing (growth potential 0.10).
    Wednesday 21 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growing
    Rainchance————————————————
    Rainmm6.34.3210.50.30.30.60.8——————0.2
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoaked
    Groundbogsoggysoggybogbogbogbogbogbogbogbogbogbogsoggybogsoggy
    Temp9°8°8°8°8°9°9°9°9°10°10°11°10°9°8°8°
    Windkm/h363638363433363328252524191498
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.10). Not enough to be worth cutting, which is why no hour is recommended today whatever the weather does.

    Wednesday 21 OctoberConfident

    Nothing to cut — the grass is barely growing (growth potential 0.10).

    Nothing to cut. The odds below describe the weather only — growth decides whether a cut is wanted, and it is judged separately.

    Limiting factor:growth

  4. Thursday 22 October: no hours worth using. No — 0.9mm of rain falling.
    Thursday 22 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictdarkdarkdarkForget itForget itForget itForget itForget itForget itForget itForget itForget it0.9mm of rain falling0.9mm of rain fallingdarkdark
    Rainchance————————————————
    Rainmm————————————0.90.90.94.7
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoaked
    Groundsoggysoggysoggysoggysoggysoggysoggysoggysoggysoggysoggysoggysoggysoggysoggysodden
    Temp5°6°7°8°8°9°11°12°13°13°12°12°11°11°11°11°
    Windkm/h1012121065691213141619243035
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.11). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Thursday 22 OctoberConfident

    No — 0.9mm of rain falling.

    Limiting factor:grass wetness

  5. Friday 23 October: nothing to cut. Nothing to cut — the grass is barely growing (growth potential 0.09).
    Friday 23 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growing
    Rainchance————————————————
    Rainmm4.24.24.20.30.30.30.20.20.2———————
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedwetdampdampdamp
    Groundbogbogbogbogbogbogbogbogbogbogbogbogbogbogbogbog
    Temp11°9°8°7°7°8°8°9°10°10°10°10°10°9°9°9°
    Windkm/h36465453494542403736343331302927
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.09). Not enough to be worth cutting, which is why no hour is recommended today whatever the weather does.

    Friday 23 OctoberReasonably confident

    Nothing to cut — the grass is barely growing (growth potential 0.09).

    Nothing to cut. The odds below describe the weather only — growth decides whether a cut is wanted, and it is judged separately.

    Limiting factor:growth

  6. Saturday 24 October: no hours worth using. No — 0.3mm of rain falling.
    Saturday 24 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictdarkdarkdarkForget itForget itForget it0.3mm of rain falling0.3mm of rain falling0.3mm of rain falling2.3mm of rain falling2.3mm of rain falling2.3mm of rain falling2.0mm of rain falling2.0mm of rain fallingdarkdark
    Rainchance————————————————
    Rainmm——————0.30.30.32.32.32.3222—
    Grassdrydrydrydrydrydrysoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoaked
    Groundbogbogsoddensoddensoddensoddensoddensoddensoddensoddensoddenbogbogbogbogbog
    Temp8°8°8°9°9°9°9°9°9°10°10°11°12°14°15°15°
    Windkm/h19171412101012141722283233313029
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.15). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Saturday 24 OctoberReasonably confident

    No — 0.3mm of rain falling.

    Limiting factor:ground firmness

  7. Sunday 25 October: no hours worth using. No — 0.6mm of rain falling.
    Sunday 25 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictdarkdarkdark0.6mm of rain falling0.6mm of rain falling0.6mm of rain falling0.6mm of rain falling0.6mm of rain falling0.1mm of rain falling0.1mm of rain falling0.1mm of rain falling0.1mm of rain falling0.1mm of rain fallingdarkdarkdark
    Rainchance————————————————
    Rainmm0.60.60.60.60.60.60.60.60.10.10.10.10.10.1——
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedwetwetdampdampdamp
    Groundbogbogbogbogbogbogbogsoddensoddensoddensoddensoddensoddensoddensoddensodden
    Temp16°16°16°15°14°14°13°13°12°12°12°12°12°11°11°11°
    Windkm/h36384041434445464645444342414039
    Daylight———✓✓✓✓✓✓✓✓✓✓———

    Growth: growing slowly (growth potential 0.29). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Sunday 25 OctoberReasonably confident

    No — 0.6mm of rain falling.

    Limiting factor:grass wetness

  8. Monday 26 October: no hours worth using. No — 0.1mm of rain falling.
    Monday 26 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictdarkdarkdark0.1mm of rain falling0.1mm of rain falling0.1mm of rain falling0.1mm of rain falling0.1mm of rain fallingForget itForget itForget itForget itForget itdarkdarkdark
    Rainchance————————————————
    Rainmm0.20.20.10.10.10.10.10.1——————0.30.3
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakeddampdrydrydrydampdampsoakedsoaked
    Groundsoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensodden
    Temp12°12°12°12°13°13°13°13°13°13°13°13°12°13°13°13°
    Windkm/h262623181416202221171276101421
    Daylight———✓✓✓✓✓✓✓✓✓✓———

    Growth: growing slowly (growth potential 0.24). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Monday 26 OctoberReasonably confident

    No — 0.1mm of rain falling.

    Limiting factor:ground firmness

  9. Tuesday 27 October: no hours worth using. No — 0.5mm of rain falling.
    Tuesday 27 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictdarkdarkdark0.5mm of rain falling0.5mm of rain falling0.5mm of rain falling0.5mm of rain falling0.5mm of rain fallingground waterloggedground waterloggedground waterloggedForget itForget itdarkdarkdark
    Rainchance————————————————
    Rainmm0.10.10.50.50.50.50.50.5——————0.20.2
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedwetwetdampdampdampdampdamp
    Groundsoddensoddensoddenbogbogbogbogbogbogbogbogsoddensoddensoddensoddensodden
    Temp14°14°14°14°14°14°14°14°14°14°14°14°14°13°13°13°
    Windkm/h33313030313335363636343331302927
    Daylight———✓✓✓✓✓✓✓✓✓✓———

    Growth: growing slowly (growth potential 0.31). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Tuesday 27 OctoberLow confidence this far out

    No — 0.5mm of rain falling.

    Limiting factor:ground firmness

  10. Wednesday 28 October: no hours worth using. No — 0.9mm of rain falling.
    Wednesday 28 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictdarkdarkdark0.9mm of rain falling0.9mm of rain falling0.9mm of rain falling0.9mm of rain falling0.9mm of rain falling0.7mm of rain falling0.7mm of rain falling0.7mm of rain falling0.7mm of rain fallingdarkdarkdarkdark
    Rainchance————————————————
    Rainmm0.20.20.90.90.90.90.90.90.70.70.70.70.70.70.10.1
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoaked
    Groundsoddensoddenbogbogbogbogbogbogbogbogbogbogbogbogbogbog
    Temp11°11°12°12°13°13°14°14°14°14°14°13°13°13°13°13°
    Windkm/h21222325272830313131313030303030
    Daylight———✓✓✓✓✓✓✓✓✓————

    Growth: growing slowly (growth potential 0.23). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Wednesday 28 OctoberLow confidence this far out

    No — 0.9mm of rain falling.

    Limiting factor:grass wetness

good to go touch and go dark, frost or snow already goneFainter means fewer forecast runs agree.

How you feel about mowing

Sensible middle ground.

Petrol or battery. The baseline.

Growth

How fast it is growing, and when it will need cutting again.

10%Barely growing

Of the fastest this grass could grow. The turf-industry measure, from today's temperature and day length.

The lawn is barely growing, so it does not need cutting. Leave it — taking leaf off a sward that cannot replace it costs more than it gives.

Held back by both temperature and short days — 10.5 hours of daylight at 9°C.

Over the next 10 days
about 6mm of leaf
Next cut due
not within the next ten days

This only knows temperature and day length. Feeding, watering, shade and cutting height all move it, so treat it as a rough guide.

Worked out from the PACE Turf growth potential model and day length —how and why.

Seeding

Soil temperature at germination depth, and when the window opens.

Soil temperature in SA71, Pembrokeshire

10.4°C51°F

at 6cm — germination depth

Seeding conditions are open — soil is 10.4°C at 6cm and holding above 9°C.

Warming over the next 10 days.

Cross-checks against an independent estimate from air temperature (9.5°C), which agrees to within 0.2°C.

Almost every UK and Irish lawn is a ryegrass and fescue mix, whether it was sown or turfed. We assume that, and use 9°C as the seeding threshold.

Thresholds for every species

The differences are small. Ryegrass is the quickest off the mark; bluegrass is the slowest and wants the warmest soil. Everything else sits between.

Soil temperature at 6cm for reliable germination. Sources onthe method page.
SpeciesSoil neededDays to sprout
Perennial ryegrasslikely yours8°C5–10
Red / chewings fescuelikely yours8–10°C10–14
Tall fescue10–12°C10–14
Browntop bentColonial bentgrass10–12°C14–21
Smooth-stalked meadow grassKentucky bluegrass12–13°C14–28

Feeding

Why timing decides whether a feed does anything at all.

Coming in the app

Grass takes up nitrogen when it is growing. Feed a lawn that has stopped and most of it washes past the roots — which is why timing beats product choice.

Right now this lawn is not growing fast enough to make much use of a feed.

The app will work out the actual feeding windows for your lawn — along with weed control, scarifying and moss treatment — and tell you when they open without you having to check.

Why timing beats product choice

SA71, Pembrokeshire in detail

Soil temperature in SA71, Pembrokeshire is currently 10.4°C at 6cm, and rising about 2.1°C over the next 10 days. That depth matters because it is where grass seed sits and where roots start working, and it lags air temperature by days — which is why a warm afternoon here tells you very little on its own.

Lawns in this area are typically perennial ryegrass with fescue, which is what most lawns round here are sown with. That blend needs the soil to hold above 9°C before seed germinates reliably. Seeding conditions are open — soil is 10.4°C at 6cm and holding above 9°C.

4 of the next 10 days look workable. The other 6 are held back by wet grass or soft ground. As for the weekend: nothing doing. 0.6mm of rain falling.

The next recommended window in SA71 opens at 6pm on Monday 19 October, because the rain clears by then. Underfoot, the ground reads as firm after 11mm rain over the last week, medium (loam) soil.

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Single-model forecast here — no ensemble covers this location, so there are no odds to show. Forecast from Open-Meteo, refreshed through the day. Soil temperature is modelled, not measured — how that works and where the thresholds come from.