Barnsley, England

Best weekend slot

Sunday 2pm–8pm

Verdict: Good

ground soft — 37mm rain over the last week

Next mow

Sunday 2pm–8pm

Verdict: Good

ground soft — 37mm rain over the last week

How you feel about mowing

Sensible middle ground.

Petrol or battery. The baseline.

The next 10 days

Column height is how mowable the day is; the lighter band is the best stretch within it. The line is soil temperature at 6cm.

9°C — seeding

Soil at 6cm 16.0°C cooling to 13.8°C

Wednesday 2 September: Not worth it. No — 0.1mm of rain falling.

Wednesday 2 SeptemberConfident

No — 0.1mm of rain falling.

Poor:Grass wetness
Grass dryraining now
Poor:Ground firmness
Ground saturated56mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.81
Good:Temperature
Temperature15°C
Good:Wind
Wind light10 km/h

Limiting factor:ground firmness

Thursday 3 September: Good. No — ground waterlogged.

Thursday 3 SeptemberConfident

No — ground waterlogged.

Good:Grass wetness
Grass dryrain earlier today
Poor:Ground firmness
Ground soft71mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.96
Good:Temperature
Temperature17°C
Good:Wind
Wind light12 km/h

Limiting factor:ground firmness

Friday 4 September: Not worth it. No — 2.0mm of rain falling.

Friday 4 SeptemberConfident

No — 2.0mm of rain falling.

Marginal:Grass wetness
Grass drydried off since a shower 3 hours ago
Poor:Ground firmness
Ground saturated53mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.89
Good:Temperature
Temperature16°C
Good:Wind
Wind light21 km/h

Limiting factor:grass wetness

Saturday 5 September: Not worth it. No — ground waterlogged.

Saturday 5 SeptemberConfident

No — ground waterlogged.

Good:Grass wetness
Grass dryrain earlier today
Poor:Ground firmness
Ground saturated38mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.75
Good:Temperature
Temperature13°C
Good:Wind
Wind light12 km/h

Limiting factor:ground firmness

Sunday 6 September: Good. 2pm–8pm — ground soft — 37mm rain over the last week

Sunday 6 September · 2pm–8pmReasonably confident

2pm–8pm — ground soft — 37mm rain over the last week

Marginal:Grass wetness
Grass drydried off since a shower 5 hours ago
Poor:Ground firmness
Ground soft37mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.94
Good:Temperature
Temperature15°C
Good:Wind
Wind light14 km/h
Sociable hours
Fine by the neighbours

Limiting factor:ground firmness

Monday 7 September: Good. 8am–2pm — ground soft — 36mm rain over the last week

Monday 7 September · 8am–2pmReasonably confident

8am–2pm — ground soft — 36mm rain over the last week

Good:Grass wetness
Grass dryno rain since Sunday
Marginal:Ground firmness
Ground soft in places36mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.69
Good:Temperature
Temperature14°C
Good:Wind
Wind light21 km/h
Sociable hours
A bit early or late, but finestarts when it stops being antisocial

Limiting factor:ground firmness

Tuesday 8 September: Good. No — 0.2mm of rain falling.

Tuesday 8 SeptemberReasonably confident

No — 0.2mm of rain falling.

Marginal:Grass wetness
Grass dryrain earlier today
Poor:Ground firmness
Ground soft35mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.61
Good:Temperature
Temperature12°C
Good:Wind
Wind light18 km/h

Limiting factor:ground firmness

Wednesday 9 September: Not worth it. No — 3.8mm of rain falling.

Wednesday 9 SeptemberReasonably confident

No — 3.8mm of rain falling.

Marginal:Grass wetness
Grass dryrain earlier today
Poor:Ground firmness
Ground saturated52mm rain over the last week
Marginal:Growth
Growing slowlygrowth potential 0.34
Good:Temperature
Temperature10°C
Good:Wind
Wind light19 km/h

Limiting factor:grass wetness

Thursday 10 September: Not worth it. No — ground waterlogged.

Thursday 10 SeptemberLow confidence this far out

No — ground waterlogged.

Good:Grass wetness
Grass dryno rain since Wednesday
Poor:Ground firmness
Ground saturated58mm rain over the last week
Marginal:Growth
Growing slowlygrowth potential 0.33
Good:Temperature
Temperature10°C
Good:Wind
Wind light9 km/h

Limiting factor:ground firmness

Friday 11 September: Not worth it. No — ground waterlogged.

Friday 11 SeptemberLow confidence this far out

No — ground waterlogged.

Good:Grass wetness
Grass dryno rain since Wednesday
Poor:Ground firmness
Ground saturated57mm rain over the last week
Good:Growth
Growing steadilygrowth potential 0.37
Good:Temperature
Temperature11°C
Good:Wind
Wind light6 km/h

Limiting factor:ground firmness

Soil temperature

15.2°C59°F

at 6cm — germination depth

Cooling over the next 11 days.

Seeding conditions are open — soil is 15.2°C at 6cm and holding above 9°C.

Almost every UK and Irish lawn is a ryegrass and fescue mix, whether it was sown or turfed. We assume that, and use9°C as the seeding threshold.

I know what grass I have

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 tempDays
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

What this means right now

  • Good: Seeding window open

    Seeding conditions are open — soil is 15.2°C at 6cm and holding above 9°C.

  • Worth watching: Ground still soft

    56mm rain over the last week. A mower will mark it, and a ride-on will rut it.

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Forecast from Open-Meteo, refreshed hourly. Soil temperature is modelled, not measured — how that works and where the thresholds come from.