Oban, Scotland

Best weekend slot

Nothing doing

Verdict: Not worth it

ground waterlogged. And nothing else in the next 10 days either.

Next mow

Not in the next 10 days

Verdict: Not worth it

ground waterlogged.

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 12.9°C cooling to 12.4°C

Wednesday 2 September: Not worth it. No — ground waterlogged.

Wednesday 2 SeptemberConfident

No — ground waterlogged.

Good:Grass wetness
Grass dryrain earlier today
Poor:Ground firmness
Ground soft30mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.56
Good:Temperature
Temperature11°C
Good:Wind
Wind light6 km/h

Limiting factor:ground firmness

Thursday 3 September: Not worth it. No — ground waterlogged.

Thursday 3 SeptemberConfident

No — ground waterlogged.

Poor:Grass wetness
Grass dryrain earlier today
Poor:Ground firmness
Ground soft36mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.68
Good:Temperature
Temperature14°C
Good:Wind
Wind light14 km/h

Limiting factor:grass wetness

Friday 4 September: Not worth it. No — 1.1mm of rain falling.

Friday 4 SeptemberConfident

No — 1.1mm of rain falling.

Poor:Grass wetness
Grass wetrain 4 hours ago
Poor:Ground firmness
Ground soft37mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.56
Good:Temperature
Temperature13°C
Good:Wind
Wind light19 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 soft47mm rain over the last week
Good:Growth
Growing steadilygrowth potential 0.50
Good:Temperature
Temperature12°C
Good:Wind
Wind light9 km/h

Limiting factor:ground firmness

Sunday 6 September: Not worth it. No — 1.0mm of rain falling.

Sunday 6 SeptemberReasonably confident

No — 1.0mm of rain falling.

Poor:Grass wetness
Grass wetraining now
Poor:Ground firmness
Ground saturated47mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.52
Good:Temperature
Temperature12°C
Good:Wind
Wind light6 km/h

Limiting factor:grass wetness

Monday 7 September: Not worth it. No — ground waterlogged.

Monday 7 SeptemberReasonably confident

No — ground waterlogged.

Poor:Grass wetness
Grass wetrain earlier today
Poor:Ground firmness
Ground saturated80mm rain over the last week
Good:Growth
Growing steadilygrowth potential 0.48
Good:Temperature
Temperature13°C
Good:Wind
Wind light10 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 slightly damprain earlier today
Poor:Ground firmness
Ground saturated108mm rain over the last week
Marginal:Growth
Growing slowlygrowth potential 0.34
Good:Temperature
Temperature11°C
Good:Wind
Wind light8 km/h

Limiting factor:grass wetness

Wednesday 9 September: Not worth it. No — ground waterlogged.

Wednesday 9 SeptemberReasonably confident

No — ground waterlogged.

Good:Grass wetness
Grass dryrain earlier today
Poor:Ground firmness
Ground saturated97mm rain over the last week
Marginal:Growth
Growing slowlygrowth potential 0.30
Good:Temperature
Temperature10°C
Good:Wind
Wind light21 km/h

Limiting factor:ground firmness

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 Tuesday
Poor:Ground firmness
Ground saturated90mm rain over the last week
Marginal:Growth
Growing slowlygrowth potential 0.30
Good:Temperature
Temperature10°C
Good:Wind
Wind light8 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 Tuesday
Poor:Ground firmness
Ground saturated89mm rain over the last week
Good:Growth
Growing steadilygrowth potential 0.38
Good:Temperature
Temperature11°C
Good:Wind
Wind light13 km/h

Limiting factor:ground firmness

Soil temperature

10.4°C51°F

at 6cm — germination depth

Warming over the next 11 days.

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

  • Worth watching: Ground still soft

    30mm 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.