EX39, North Devon

EX39, North Devon51.0155, -4.2454from your postcode

Mowing

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

Best weekend slot

Nothing doing

Verdict: Not worth it

0.3mm of rain falling.

Today afternoon is your first decent window.

Next mow

Today 3pm–5pm

Verdict: Prime time

grass slightly damp — rain earlier that day

  • Worth watching: Ground still soft. 36mm rain over the last week, coarse (sandy) 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: 3 hours worth using. 3pm–5pm — grass slightly damp — rain earlier that day
    Monday 19 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictAlready goneAlready goneAlready goneAlready goneAlready goneForget itForget itForget itForget itForget itPrime timePrime time0.2mm of rain fallingPrime timedarkdark
    Rainchance·····———————————
    Rainmm·····———————0.2——0.1
    Grass·····soakedsoakedsoakedsoakedsoakeddrydrydampdampdrywet
    Ground·····firmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirm
    Temp·····10°10°11°12°12°13°12°11°11°10°10°
    Windkm/h·····1212171719201816121310
    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.

    Monday 19 October · best slot3pm–5pmConfident

    3pm–5pm — grass slightly damp — rain earlier that day

    Also mowable today: 6pm–7pm

    Limiting factor:grass wetness

  2. Tuesday 20 October: 6 hours worth using. 1pm–7pm — ground firm — 8mm rain over the last week, coarse (sandy) soil
    Tuesday 20 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictdarkdarkdark0.1mm of rain falling0.1mm of rain falling0.1mm of rain fallingForget itForget itPrime timePrime timePrime timePrime timePrime timePrime timedarkdark
    Rainchance————————————————
    Rainmm———0.10.10.1——————————
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakeddrydrydrydrydrydrydrydry
    Groundfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirm
    Temp8°8°8°8°9°10°11°12°13°14°14°14°13°12°10°9°
    Windkm/h5623532314131212881213
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.12). 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 · 1pm–7pmConfident

    1pm–7pm — ground firm — 8mm rain over the last week, coarse (sandy) soil

    Limiting factor:ground firmness

  3. Wednesday 21 October: no hours worth using. No — 3.1mm of rain falling.
    Wednesday 21 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictdarkdarkdark3.1mm of rain falling2.9mm of rain falling3.7mm of rain falling2.0mm of rain falling2.0mm of rain falling2.0mm of rain fallingForget itForget itForget itForget itForget itdarkdark
    Rainchance————————————————
    Rainmm0.23.12.93.12.93.7222——————1
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedwetwetsoaked
    Groundfirmfirmfirmfirmsoftsoftsoftsoggysoggysoggysoggysoggysoggysoggysoggysoggy
    Temp11°10°9°9°9°8°8°9°10°10°11°11°11°11°11°11°
    Windkm/h8454940394648423736353431272319
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.13). 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 21 OctoberConfident

    No — 3.1mm of rain falling.

    Limiting factor:grass wetness

  4. Thursday 22 October: no hours worth using. No — 1.0mm of rain falling.
    Thursday 22 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictdarkdarkdarkForget itForget itForget itForget itForget itForget itForget itForget itForget it1.0mm of rain falling1.0mm of rain fallingdarkdark
    Rainchance————————————————
    Rainmm————————————1112.8
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedwetwetdampsoakedsoakedsoakedsoaked
    Groundbogsoddensoddensoddensoddensoddensoddensoddensoddensoggysoggysoggysoggysoggysoggysodden
    Temp11°11°11°11°11°12°12°13°13°14°14°13°13°12°11°12°
    Windkm/h23222119171513121112131619242730
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: growing slowly (growth potential 0.21). 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 — 1.0mm of rain falling.

    Limiting factor:grass wetness

  5. Friday 23 October: no hours worth using. No — 0.8mm of rain falling.
    Friday 23 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictdarkdarkdark0.8mm of rain falling0.8mm of rain falling0.8mm of rain falling0.7mm of rain falling0.7mm of rain falling0.7mm of rain falling0.5mm of rain falling0.5mm of rain falling0.5mm of rain falling0.8mm of rain falling0.8mm of rain fallingdarkdark
    Rainchance————————————————
    Rainmm1.61.61.60.80.80.80.70.70.70.50.50.50.80.80.80.4
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoaked
    Groundbogbogbogbogbogbogbogbogbogsoddensoddensoddenbogbogbogbog
    Temp10°9°9°9°9°9°10°10°10°10°10°9°9°9°9°9°
    Windkm/h67666461555148464441373535353533
    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.

    Friday 23 OctoberReasonably confident

    No — 0.8mm of rain falling.

    Limiting factor:grass wetness

  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 falling1.0mm of rain falling1.0mm of rain falling1.0mm of rain falling1.0mm of rain falling1.0mm of rain fallingdarkdark
    Rainchance————————————————
    Rainmm0.10.10.1———0.30.30.31111110.3
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoaked
    Groundbogsoddensoddensoddensoddensoddensoddensoddensoddensoddenbogbogbogbogbogbog
    Temp10°10°10°10°10°11°10°10°10°9°10°10°11°13°15°15°
    Windkm/h26242321181615141518222425252627
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.18). 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:grass wetness

  7. Sunday 25 October: no hours worth using. No — 0.6mm of rain falling.
    Sunday 25 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictdarkdark0.6mm of rain falling0.6mm 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————————————————
    Rainmm0.50.50.60.60.60.60.60.60.10.10.10.10.10.1——
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedwetdampdamp
    Groundbogbogbogbogbogbogbogsoddensoddensoddensoddensoddensoddensoddensoddensodden
    Temp17°17°16°16°15°15°14°14°14°13°13°13°13°13°13°13°
    Windkm/h33353638414244464647474746464543
    Daylight——✓✓✓✓✓✓✓✓✓✓✓———

    Growth: growing steadily (growth potential 0.36). 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————————————————
    Verdictdarkdark0.1mm of rain falling0.1mm 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————————
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakeddampdampsoakedsoakedsoakedsoakedsoaked
    Groundsoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensodden
    Temp9°10°10°11°12°13°13°14°14°13°13°12°12°12°12°13°
    Windkm/h23211712111621242218126691317
    Daylight——✓✓✓✓✓✓✓✓✓✓✓———

    Growth: barely growing (growth potential 0.19). 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 falling0.1mm of rain falling0.1mm of rain falling0.1mm of rain falling0.1mm of rain falling0.1mm of rain fallingdarkdarkdark
    Rainchance————————————————
    Rainmm0.20.20.50.50.50.50.50.50.10.10.10.10.10.10.20.2
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedwetwetdampdampsoakedsoaked
    Groundsoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensoddensodden
    Temp15°15°15°14°14°14°14°14°14°13°13°13°13°13°13°12°
    Windkm/h26252526283134353533302826252423
    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:grass wetness

  10. Wednesday 28 October: no hours worth using. No — 0.7mm of rain falling.
    Wednesday 28 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictdarkdarkdark0.7mm of rain falling0.7mm of rain falling0.7mm of rain falling0.7mm of rain falling0.7mm of rain falling0.5mm of rain falling0.5mm of rain falling0.5mm of rain falling0.5mm of rain fallingdarkdarkdarkdark
    Rainchance————————————————
    Rainmm0.20.20.70.70.70.70.70.70.50.50.50.50.50.50.40.4
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoaked
    Groundsoddensoddensoddensoddensoddensoddensoddenbogbogbogbogbogbogbogbogbog
    Temp10°10°11°11°12°13°14°14°14°14°14°14°13°13°13°13°
    Windkm/h19191921232528293031313231313130
    Daylight———✓✓✓✓✓✓✓✓✓————

    Growth: growing slowly (growth potential 0.22). 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 — 0.7mm 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.

11%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 7mm 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 EX39, North Devon

9.4°C49°F

at 6cm — germination depth

Seeding conditions are open — soil is 9.4°C at 6cm and holding above 9°C.

Warming over the next 10 days.

Cross-checks against an independent estimate from air temperature (10.4°C), which agrees to within 0.5°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

EX39, North Devon in detail

Soil temperature in EX39, North Devon is currently 9.4°C at 6cm, and rising about 1.7°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 9.4°C at 6cm and holding above 9°C.

2 of the next 10 days look workable. The other 8 are held back by wet grass or soft ground. As for the weekend: nothing doing. 0.3mm of rain falling.

The next recommended window in EX39 opens at 3pm on Monday 19 October, because that is when the dew has burnt off — earlier than that and you are cutting wet grass. Underfoot, the ground reads as firm after 5mm rain over the last week, coarse (sandy) 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.