Weather in Elmshorn

Forecast: MOSMIX (DWD-Statistik über ICON + ECMWF) · Run 23.09. 23:00 Uhr · Station UETERSEN (7,3 km from the centre) · own station correction +1,8 °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 ±1,4 °C here (up to 24 h), rain forecast 72 % correct.
Today: frontal passage – we're typically off by ±1,3 °C on days like this (±1,3 °C on settled days). Honest.
We beat the "same as yesterday" rule of thumb by 54 %.

Now · as of 06:00

14°Regen

Later today

High · 14:00 Uhr17° Low13°

13 km/h aus W 78 % 77 % 1018 hPa Rain last 24 h 5,4 mm (measured, as of 05:00) 07:11 19:14 waxing gibbous (95 %)

Rain Radar

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The next few days

Day	Min	Max	Rain	Risk	Sun
Do, 24.09.	13°	17°	1,7 mm	43 %	1,9 h	07:11	19:14
Fr, 25.09.	10°	20° 16:00	0,0 mm	3 %	7,5 h	07:13	19:12
Sa, 26.09.	8°	20° 15:00	0,0 mm	9 %	4,9 h	07:15	19:09
So, 27.09.	11°	22° 16:00	0,0 mm	7 %	5,5 h	07:17	19:07
Mo, 28.09.	14°	22° 16:00	0,0 mm	11 %	4,4 h	07:18	19:04
Di, 29.09.	15°	24° 16:00	0,0 mm	8 %	4,7 h	07:20	19:02
Mi, 30.09.	14°	23° 15:00	0,0 mm	8 %	5,1 h	07:22	18:59
Do, 01.10.	15°	21° 15:00	0,0 mm	12 %	5,3 h	07:24	18:57
Fr, 02.10.	13°	20° 15:00	0,0 mm	19 %	4,1 h	07:26	18:55
Sa, 03.10.	12°	18° 16:00	0,0 mm	18 %	3,7 h	07:27	18:52

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 Elmshorn the average temperature in September is 14,0 °C, in October it's 9,7 °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.

Do, 24.09.17° wackelt noch (±0,8 °C über 12 Läufe)

Fr, 25.09.20° stabil (±0,4 °C über 12 Läufe)

Sa, 26.09.20° stabil (±0,2 °C über 12 Läufe)

So, 27.09.22° stabil (±0,7 °C über 12 Läufe)

Today at a glanceDo, 24.09.

Garden no frost

Low of 3,9 °C in 48 h, 1,7 mm rain in 24 h. Spray/watering window: 19:00 to 05:00 (35 h) – dry, calm, stays dry afterwards. Product-dependent – check the label.

Outdoors dry

16:00 to 05:00 (38 h) · gusts up to 43 km/h.

Pollen Grasses: none to low load

Also Ragweed none to low load.

Region Geest, Schleswig-Holstein und Hamburg · As of 23.09., 11:00 Uhr · DWD pollen forecast

Balcony solar: today ≈ 1,24 kWh per kWp, tomorrow 3,53 kWh · Best 2 h for high loads today: 13:00 to 14:00 (south, vertical) – adjust to your orientation in the app.

Climate in Elmshorn (1991-2020)

The warmest month in Elmshorn is Juli (avg 17,8 °C), the coldest is Januar (avg 1,9 °C). The most rain falls in Juli (avg 87,7 mm), the least in April (avg 40,7 mm). The sunniest month is Mai (avg 223,0 h).

Annual mean 9,4 °C, 832 mm precipitation, 1582 hours of sunshine. Weather station Brande-Hörnerkirchen (12,3 km away).

Record on 24.09.: 24,6 °C (1938), coldest value 1,8 °C (1979), highest rainfall 18,5 mm (1993) – series since 1936

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