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Weather in Wittnau

Aargau, 436 m · continuously updated

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Wind
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Humidity
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Rain ahead
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Sunset
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Temperature · last 4 and next 28 hours

Wittnau weather: the next 24 hours

Updated hourly.

Wittnau weather hour by hour (48 h)

Wittnau 15-day forecast

Two-week trend.

Wittnau weekend weatherRain radar

Sun and golden hours

Sunrise –, golden light until –

Sunset –, golden light from –

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Air quality

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European index, measured continuously.

UV index

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Daily maximum — protection advised from 3.

Freezing level

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Snow settles about 300 m below it.

Around Wittnau

Neighbouring municipalities, as the crow flies.

7-day forecast for Wittnau

Today (Saturday 14 Nov) in Wittnau: overcast, 0 to 6 °C, precipitation 0.0 mm (0 %), wind up to 12 km/h. Tomorrow: showers, 1 to 13 °C.

Show the 7-day table
DayWeatherMinMaxPrecip.Wind
Todayovercast0 °C6 °C0.0 mm12 km/h
Tomorrowshowers1 °C13 °C2.7 mm19 km/h
Mon 16 Novshowers8 °C11 °C3.6 mm23 km/h
Tue 17 Novlight rain8 °C15 °C7.6 mm41 km/h
Wed 18 Novshowers10 °C13 °C9.2 mm26 km/h
Thu 19 Novshowers9 °C14 °C3.0 mm22 km/h
Fri 20 Novshowers−1 °C9 °C4.3 mm23 km/h

Forecast updated on 14.11.2026 at 11:34 (Open-Meteo model, elevation 436 m). The interactive block at the top refreshes hourly and covers 16 days.

No rain expected today in Wittnau. Tomorrow: rain from 04:00 to 10:00. The 15-minute detail for the next two hours is shown on demand.

Hourly weather in Wittnau

Saturday 14 Nov in Wittnau, hour by hour: sunny in the morning, sunny in the afternoon, sunny in the evening. Low 0 °C around 08:00, high 6 °C around 14:00. No rainy hour.

Show the 24-hour table
TimeWeatherTemp.Precip.Wind
00:00sunny1 °C0.0 mm3 km/h
01:00sunny1 °C0.0 mm3 km/h
02:00sunny1 °C0.0 mm3 km/h
03:00sunny0 °C0.0 mm4 km/h
04:00sunny0 °C0.0 mm4 km/h
05:00sunny0 °C0.0 mm4 km/h
06:00sunny0 °C0.0 mm4 km/h
07:00sunny0 °C0.0 mm4 km/h
08:00sunny0 °C0.0 mm5 km/h
09:00sunny0 °C0.0 mm6 km/h
10:00sunny2 °C0.0 mm9 km/h
11:00mostly sunny3 °C0.0 mm12 km/h
12:00mostly sunny4 °C0.0 mm11 km/h
13:00mostly sunny5 °C0.0 mm10 km/h
14:00sunny6 °C0.0 mm10 km/h
15:00sunny6 °C0.0 mm10 km/h
16:00sunny5 °C0.0 mm9 km/h
17:00sunny4 °C0.0 mm6 km/h
18:00sunny3 °C0.0 mm4 km/h
19:00sunny2 °C0.0 mm3 km/h
20:00partly cloudy2 °C0.0 mm2 km/h
21:00overcast2 °C0.0 mm2 km/h
22:00overcast2 °C0.0 mm2 km/h
23:00overcast2 °C0.0 mm2 km/h

Hourly forecast issued 14.11.2026 for Wittnau (436 m), Swiss local time, Open-Meteo model. The interactive block at the top of the page covers 16 days and refreshes every hour.

Weather today in Wittnau

Today, Saturday 14 Nov in Wittnau: overcast, 0 to 6 °C, wind up to 12 km/h. No precipitation expected. That is 2.8 °C below the climate normal for November in Wittnau (5.4 °C average over 1991-2020).

Wittnau weather tomorrow

Tomorrow, Sunday 15 Nov, in Wittnau: showers, 1 to 13 °C, wind up to 19 km/h. Precipitation expected: 2.7 mm, 100 % probability.

What is the temperature in Wittnau?

Today in Wittnau (436 m): 0 to 6 °C. Tomorrow: 1 to 13 °C. Over the next 7 days, highs range from 6 to 15 °C, averaging 11 °C.

Wittnau weekend weather

This weekend in Wittnau: Saturday overcast, 0 to 6 °C; Sunday showers, 1 to 13 °C.

Will it rain in Wittnau this week?

Yes: 6 days with precipitation are expected in Wittnau over the next 7 days, 30.4 mm in total. Wettest day: Wednesday 18 Nov (9.2 mm).

What is the UV index in Wittnau?

Today in Wittnau (436 m), the UV index peaks at 2 (low) around midday. No particular protection is needed. In the mountains, radiation rises by about 10 % per 1,000 m, and snow reflects up to 80 % of it.

The best day to go out in Wittnau

The best day of the next 7 in Wittnau: Saturday 14 Nov, overcast, up to 6 °C.

Climate of Wittnau: 1991–2020 normals

In Wittnau (436 m), the mean annual temperature is 10.2 °C. The warmest month is July (19.4 °C on average) and the coldest January (1.5 °C). About 962 mm of precipitation falls per year, peaking in August (106 mm) with a minimum in February (52 mm). The sun shines for about 1654 hours a year, mostly in July (231 h). On average there are 74 frost days and 8 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.3 °C and the absolute minimum −8.2 °C.

10.2 °CMean annual temperature
962 mmPrecipitation per year
1654 hSunshine hours per year
74Frost days per year
39Summer days (≥ 25 °C)
JFMAMJJASOND

Mean monthly precipitation (mm) — bar height relative to the wettest month.

MonthMean TAbs. maxAbs. minPrecip. (mm)Sunshine (h)Frost daysSummer days
Jan1.5 °C12.2 °C−8.2 °C6058190
Feb2.3 °C13.9 °C−7.5 °C5283160
Mar6.1 °C18.8 °C−4.1 °C61137100
Apr9.9 °C23.2 °C−0.9 °C7217030
May13.9 °C27.1 °C3.4 °C10618703
Jun17.5 °C30.7 °C7.2 °C9821008
Jul19.4 °C32.3 °C9.9 °C106231013
Aug19.0 °C31.2 °C9.2 °C106213012
Sep14.8 °C26.3 °C5.5 °C7815803
Oct10.5 °C21.7 °C1.2 °C769910
Nov5.4 °C16.1 °C−3.0 °C725980
Dec2.3 °C12.6 °C−6.9 °C7749170
Year10.2 °C32.3 °C−8.2 °C96216547439

At what altitude is Wittnau located?

Wittnau sits at around 436 m above sea level in the canton of Aargau. This elevation directly affects temperatures, the rain-snow line and snow cover: on average, the temperature drops by about 0.55 °C per 100 m of altitude.

What is the warmest month in Wittnau?

The warmest month in Wittnau is July, averaging 19.4 °C; the coldest is January, at 1.5 °C. The annual mean is 10.2 °C (MeteoSwiss 1991–2020 normals, reference station Rünenberg).

How much does it rain in Wittnau per year?

Wittnau receives about 962 mm of precipitation a year, or 80 mm a month on average. The wettest month is August (106 mm) and the driest February (52 mm), according to the MeteoSwiss 1991–2020 normals.

How many frost days does Wittnau have?

Wittnau averages 74 frost days a year, most of them in January (19 days). Conversely, 39 summer days exceed 25 °C, 8 of them above 30 °C. Mean values from the MeteoSwiss 1991–2020 normals.

How many hours of sunshine does Wittnau get per year?

The sun shines for about 1654 hours a year in Wittnau. The sunniest month is July (231 h) and the least sunny December (49 h), according to the MeteoSwiss 1991–2020 normals.

How big is the temperature difference between summer and winter in Wittnau?

In Wittnau, the monthly mean rises from 1.5 °C in January to 19.4 °C in July: a 17.9 °C gap between the coldest and the warmest month. Absolute extremes over 1991–2020 range from −8.2 °C to 32.3 °C.

When is the best time to visit Wittnau?

For warmth and sunshine: July (19.4 °C on average, 231 h of sun). To avoid rain, February is the driest month (52 mm). The coldest month is January (1.5 °C).

Source: MeteoSwiss open data (1991–2020 normals) — stations Rünenberg (8 km, 611 m), Gösgen (13 km, 380 m), Buchs / Aarau (13 km, 387 m), adjusted to the elevation of Wittnau (436 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.