Weather in Hamm

Forecast: MOSMIX (DWD-Statistik über ICON + ECMWF) · Run 22.09. 23:00 Uhr · Station HAMM (0,4 km from the centre) · own station correction +1,9 °C (from our station comparison). We show where our data comes from – and how often we get it wrong. Measured against official stations, we were recently off by ±1,3 °C here (up to 24 h), rain forecast 85 % correct.
Today: settled weather – historically easy to forecast.
We beat the "same as yesterday" rule of thumb by 55 %.

Now · as of 06:00

9°klar

Later today

High · 16:00 Uhr22° Low9°

4 km/h aus O 32 % 86 % 1027 hPa Rain last 24 h 0,0 mm (measured, as of 05:00) 07:17 19:24 waxing gibbous (89 %)

Rain Radar

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The next few days

Day	Min	Max	Risk	Sun
Mi, 23.09.	9°	22°	17 %	8,5 h	07:17	19:24
Do, 24.09.	11°	20° 16:00	21 %	5,6 h	07:19	19:22
Fr, 25.09.	8°	22° 16:00	1 %	9,7 h	07:20	19:19
Sa, 26.09.	10°	23° 16:00	4 %	7,6 h	07:22	19:17
So, 27.09.	12°	24° 16:00	4 %	6,2 h	07:24	19:15
Mo, 28.09.	16°	24° 15:00	8 %	5,6 h	07:25	19:12
Di, 29.09.	16°	26° 16:00	7 %	5,9 h	07:27	19:10
Mi, 30.09.	16°	24° 16:00	13 %	5,7 h	07:28	19:08
Do, 01.10.	15°	22° 15:00	26 %	5,2 h	07:30	19:05
Fr, 02.10.	15°	20° 16:00	31 %	4,8 h	07:32	19:03

Outlook: the next few weeks

A genuine day-by-day forecast only reaches about 10 days out – anything beyond that is statistics, not a forecast. That's why we don't show a 30- or 90-day outlook. What can be honestly stated is the long-term normal: in Hamm the average temperature in September is 14,7 °C, in October it's 10,7 °C (1991-2020 climate mean for the local climate station, see below). We show openly how often our forecast actually holds up.

How reliable is the forecast?

How our forecast daily high has shifted across recent runs. Flat line = the forecast is holding, jittery = still shifting.

Mi, 23.09.22° stabil (±0,7 °C über 12 Läufe)

Do, 24.09.20° wackelt noch (±1,1 °C über 12 Läufe)

Fr, 25.09.22° wackelt noch (±1,2 °C über 12 Läufe)

Sa, 26.09.23° stabil (±0,8 °C über 12 Läufe)

Today at a glanceMi, 23.09.

Garden no frost

Low of 3,7 °C in 48 h, 0,0 mm rain in 24 h. Spray/watering window: 06:00 to 09:00 (28 h) – dry, calm, stays dry afterwards. Product-dependent – check the label.

Outdoors dry

06:00 to 05:00 (48 h) · gusts up to 26 km/h.

Pollen Grasses: none to low load

Also Ragweed none to low load.

Region Rhein.-Westfäl. Tiefland · As of 22.09., 11:00 Uhr · DWD pollen forecast

Balcony solar: today ≈ 3,73 kWh per kWp, tomorrow 2,71 kWh · Best 2 h for high loads today: 14:00 to 15:00 (south, vertical) – adjust to your orientation in the app.

Climate in Hamm (1991-2020)

The warmest month in Hamm is Juli (avg 18,8 °C), the coldest is Januar (avg 2,9 °C). The most rain falls in Juli (avg 85,2 mm), the least in April (avg 40,1 mm). The sunniest month is Juli (avg 210,0 h).

Annual mean 10,5 °C, 762 mm precipitation, 1590 hours of sunshine. Weather station Werl (12,4 km away).

Record on 23.09.: 28,1 °C (2006), coldest value 3,4 °C (2012), highest rainfall 15,7 mm (2018) – series since 1975

Weather nearby

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