Middlesbrough, England

Best weekend slot

Sunday 10am–5pm

Verdict: Good

dried off since a shower 4 hours ago, ground firm

Next mow

Today 8am–10am

Verdict: Good

rain 5 hours ago, ground firm

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 17.1°C cooling to 13.5°C

Wednesday 2 September: Good. 8am–10am — rain 5 hours ago, ground firm

Wednesday 2 September · 8am–10amConfident

8am–10am — rain 5 hours ago, ground firm

Poor:Grass wetness
Grass dryraining now
Good:Ground firmness
Ground firm21mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.83
Good:Temperature
Temperature16°C
Good:Wind
Wind light10 km/h
Sociable hours
A bit early or late, but finestarts once the dew has burnt off

Limiting factor:none

Thursday 3 September: Good. 9am–7pm — grass dry — rain earlier today

Thursday 3 September · 9am–7pmConfident

9am–7pm — grass dry — rain earlier today

Good:Grass wetness
Grass dryrain earlier today
Good:Ground firmness
Ground firm25mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.97
Good:Temperature
Temperature17°C
Good:Wind
Wind light15 km/h
Sociable hours
A bit early or late, but finestarts once the dew has burnt off

Limiting factor:grass wetness

Friday 4 September: Good. 2pm–8pm — dried off since a shower 1 hour ago, ground firm

Friday 4 September · 2pm–8pmConfident

2pm–8pm — dried off since a shower 1 hour ago, ground firm

Marginal:Grass wetness
Grass drydried off since a shower 0 hours ago
Good:Ground firmness
Ground firm31mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.84
Good:Temperature
Temperature15°C
Good:Wind
Wind light1 km/h
Sociable hours
Fine by the neighboursstarts once the rain has passed

Limiting factor:none

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

Saturday 5 September · 8am–8pmConfident

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

Good:Grass wetness
Grass dryrain earlier today
Good:Ground firmness
Ground firm30mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.78
Good:Temperature
Temperature13°C
Good:Wind
Wind light13 km/h
Sociable hours
A bit early or late, but finestarts when it stops being antisocial

Limiting factor:none

Sunday 6 September: Good. 10am–5pm — dried off since a shower 4 hours ago, ground firm

Sunday 6 September · 10am–5pmReasonably confident

10am–5pm — dried off since a shower 4 hours ago, ground firm

Good:Grass wetness
Grass drydried off since a shower 4 hours ago
Good:Ground firmness
Ground firm27mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.95
Good:Temperature
Temperature15°C
Good:Wind
Wind light13 km/h
Sociable hours
Fine by the neighboursstarts once the dew has burnt off

Limiting factor:none

Monday 7 September: Good. 8am–2pm — rain earlier today, ground firm

Monday 7 September · 8am–2pmReasonably confident

8am–2pm — rain earlier today, ground firm

Good:Grass wetness
Grass dryrain earlier today
Good:Ground firmness
Ground firm20mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.75
Good:Temperature
Temperature14°C
Good:Wind
Wind light17 km/h
Sociable hours
A bit early or late, but finestarts when it stops being antisocial

Limiting factor:none

Tuesday 8 September: Good. 8am–11am — rain earlier today, ground soft in places

Tuesday 8 September · 8am–11amReasonably confident

8am–11am — rain earlier today, ground soft in places

Marginal:Grass wetness
Grass dryrain earlier today
Good:Ground firmness
Ground soft in places22mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.54
Good:Temperature
Temperature13°C
Good:Wind
Wind light19 km/h
Sociable hours
A bit early or late, but finestarts when it stops being antisocial

Limiting factor:none

Wednesday 9 September: Not worth it. No — 1.0mm of rain falling.

Wednesday 9 SeptemberReasonably confident

No — 1.0mm of rain falling.

Marginal:Grass wetness
Grass drydried off since a shower 0 hours ago
Poor:Ground firmness
Ground soft41mm rain over the last week
Good:Growth
Growing steadilygrowth potential 0.37
Good:Temperature
Temperature13°C
Good:Wind
Wind light18 km/h

Limiting factor:grass wetness

Thursday 10 September: Good. 8am–8pm — growing slowly — growth potential 0.26

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

8am–8pm — growing slowly — growth potential 0.26

Good:Grass wetness
Grass dryrain earlier today
Marginal:Ground firmness
Ground soft in places48mm rain over the last week
Marginal:Growth
Growing slowlygrowth potential 0.26
Good:Temperature
Temperature11°C
Good:Wind
Wind light9 km/h
Sociable hours
A bit early or late, but finestarts when it stops being antisocial

Limiting factor:growth

Friday 11 September: Good. 10am–8pm — grass dry — no rain since Wednesday

Friday 11 September · 10am–8pmLow confidence this far out

10am–8pm — grass dry — no rain since Wednesday

Good:Grass wetness
Grass dryno rain since Wednesday
Good:Ground firmness
Ground firm41mm rain over the last week
Good:Growth
Growing steadilygrowth potential 0.38
Good:Temperature
Temperature10°C
Good:Wind
Wind light4 km/h
Sociable hours
Fine by the neighboursstarts once the dew has burnt off

Limiting factor:grass wetness

Soil temperature

15.3°C60°F

at 6cm — germination depth

Cooling over the next 11 days.

Seeding conditions are open — soil is 15.3°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 15.3°C at 6cm and holding above 9°C.

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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.