Paisley, Scotland

Best weekend slot

Saturday 8am–9pm

Verdict: Good

rain earlier today, ground firm

Next mow

Tomorrow midday–7pm

Verdict: Good

grass dry — rain earlier today

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 14.6°C cooling to 12.0°C

Wednesday 2 September: Marginal. No — 0.1mm of rain falling.

Wednesday 2 SeptemberConfident

No — 0.1mm of rain falling.

Poor:Grass wetness
Grass wetraining now
Marginal:Ground firmness
Ground soft in places31mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.52
Good:Temperature
Temperature13°C
Good:Wind
Wind light1 km/h

Limiting factor:grass wetness

Thursday 3 September: Good. midday–7pm — grass dry — rain earlier today

Thursday 3 September · midday–7pmConfident

midday–7pm — grass dry — rain earlier today

Marginal:Grass wetness
Grass dryrain earlier today
Good:Ground firmness
Ground soft in places38mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.76
Good:Temperature
Temperature15°C
Good:Wind
Wind light7 km/h
Sociable hours
Fine by the neighboursstarts once the dew has burnt off

Limiting factor:grass wetness

Friday 4 September: Good. 8pm–9pm — dried off since a shower 1 hour ago, ground soft in places

Friday 4 September · 8pm–9pmConfident

8pm–9pm — dried off since a shower 1 hour ago, ground soft in places

Marginal:Grass wetness
Grass drydried off since a shower 0 hours ago
Good:Ground firmness
Ground soft in places42mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.57
Good:Temperature
Temperature13°C
Good:Wind
Wind light15 km/h
Sociable hours
Your neighbours will remember itstarts once the rain has passed

Limiting factor:none

Saturday 5 September: Good. 8am–9pm — rain earlier today, ground firm

Saturday 5 September · 8am–9pmConfident

8am–9pm — rain earlier today, ground firm

Good:Grass wetness
Grass dryrain earlier today
Good:Ground firmness
Ground firm45mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.52
Good:Temperature
Temperature11°C
Good:Wind
Wind light10 km/h
Sociable hours
A bit early or late, but finestarts when it stops being antisocial

Limiting factor:none

Sunday 6 September: Not worth it. No — 1.5mm of rain falling.

Sunday 6 SeptemberReasonably confident

No — 1.5mm of rain falling.

Poor:Grass wetness
Grass wetraining now
Poor:Ground firmness
Ground soft44mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.61
Good:Temperature
Temperature12°C
Good:Wind
Wind light17 km/h

Limiting factor:grass wetness

Monday 7 September: Not worth it. No — 0.3mm of rain falling.

Monday 7 SeptemberReasonably confident

No — 0.3mm of rain falling.

Poor:Grass wetness
Grass drydried off since a shower 0 hours ago
Poor:Ground firmness
Ground soft73mm rain over the last week
Good:Growth
Growing steadilygrowth potential 0.46
Good:Temperature
Temperature12°C
Good:Wind
Wind light12 km/h

Limiting factor:grass wetness

Tuesday 8 September: Not worth it. No — 0.1mm of rain falling.

Tuesday 8 SeptemberReasonably confident

No — 0.1mm of rain falling.

Poor:Grass wetness
Grass wetraining now
Poor:Ground firmness
Ground soft79mm rain over the last week
Marginal:Growth
Growing slowlygrowth potential 0.29
Good:Temperature
Temperature10°C
Good:Wind
Wind light12 km/h

Limiting factor:grass wetness

Wednesday 9 September: Good. 11am–8pm — ground soft — 68mm rain over the last week

Wednesday 9 September · 11am–8pmReasonably confident

11am–8pm — ground soft — 68mm rain over the last week

Good:Grass wetness
Grass dryrain earlier today
Poor:Ground firmness
Ground soft68mm rain over the last week
Marginal:Growth
Growing slowlygrowth potential 0.29
Good:Temperature
Temperature10°C
Good:Wind
Wind light16 km/h
Sociable hours
Fine by the neighbours

Limiting factor:ground firmness

Thursday 10 September: Good. 8am–2pm — ground soft — 60mm rain over the last week

Thursday 10 September · 8am–2pmLow confidence this far out

8am–2pm — ground soft — 60mm rain over the last week

Good:Grass wetness
Grass dryno rain since Tuesday
Marginal:Ground firmness
Ground soft60mm rain over the last week
Marginal:Growth
Growing slowlygrowth potential 0.28
Good:Temperature
Temperature11°C
Good:Wind
Wind light5 km/h
Sociable hours
A bit early or late, but finestarts when it stops being antisocial

Limiting factor:ground firmness

Friday 11 September: Good. 8am–2pm — ground soft in places — 56mm rain over the last week

Friday 11 September · 8am–2pmLow confidence this far out

8am–2pm — ground soft in places — 56mm rain over the last week

Good:Grass wetness
Grass dryrain earlier today
Marginal:Ground firmness
Ground soft in places56mm rain over the last week
Marginal:Growth
Growing slowlygrowth potential 0.29
Good:Temperature
Temperature11°C
Good:Wind
Wind light4 km/h
Sociable hours
A bit early or late, but finestarts when it stops being antisocial

Limiting factor:ground firmness

Soil temperature

12.6°C55°F

at 6cm — germination depth

Cooling over the next 11 days.

Seeding conditions are open — soil is 12.6°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 12.6°C at 6cm and holding above 9°C.

  • Worth watching: Ground still soft

    44mm 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.