What is the weather in Brittnau today?

At the top of the page you will find the current temperature, precipitation and wind in Brittnau, updated in real time.

What is the 15-day forecast for Brittnau?

The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Brittnau.

Will it rain tomorrow in Brittnau?

Check the 48-hour hourly forecast to see exactly when precipitation is expected in Brittnau.

What is the air quality in Brittnau?

The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Brittnau.

Are there weather alerts for Brittnau?

Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.

At what altitude is Brittnau located?

Brittnau sits at around 536 m above sea level in the canton of Aargau. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.

What is the warmest month in Brittnau?

The warmest month in Brittnau is July, averaging 18.4 °C (1991–2020 normal). The coldest is January at 0.2 °C.

How much does it rain in Brittnau per year?

Brittnau receives about 1095 mm of precipitation a year. The wettest month is July (117 mm), the driest February (65 mm).

When is the best time to visit Brittnau?

For warmth and sunshine: July (18.4 °C on average, 240 h of sun). The coldest month is January (0.2 °C). Check the 15-day forecast above for your dates.

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Home › Aargau › Brittnau

Weather in Brittnau

Aargau, 536 m · continuously updated

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Wind: –
Humidity: –
Rain ahead: –
Sunset: –

Temperature · last 4 and next 28 hours

Brittnau weather: the next 24 hours

Updated hourly.

Brittnau weather hour by hour (48 h)

Brittnau 15-day forecast

Two-week trend.

Brittnau weekend weather Rain 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 Brittnau

Neighbouring municipalities, as the crow flies.

Vordemwald1 km Strengelbach3 km Rothrist5 km Murgenthal5 km Roggliswil5 km Zofingen5 km Wikon5 km Fulenbach5 km

7-day forecast for Brittnau

Today (Sunday 27 Sep) in Brittnau: partly cloudy, 7 to 26 °C, precipitation 0.0 mm (0 %), wind up to 10 km/h. Tomorrow: overcast, 9 to 26 °C.

Day	Weather	Min	Max	Precip.	Wind
Today	partly cloudy	7 °C	26 °C	0.0 mm	10 km/h
Tomorrow	overcast	9 °C	26 °C	0.0 mm	5 km/h
Tue 29 Sep	overcast	10 °C	25 °C	0.0 mm	6 km/h
Wed 30 Sep	light rain	14 °C	22 °C	0.0 mm	6 km/h
Thu 1 Oct	showers	14 °C	18 °C	6.3 mm	5 km/h
Fri 2 Oct	fog	12 °C	19 °C	0.0 mm	10 km/h
Sat 3 Oct	fog	13 °C	21 °C	0.0 mm	4 km/h

Forecast updated on 27.09.2026 at 04:37 (Open-Meteo model, elevation 536 m). The interactive block at the top refreshes hourly and covers 16 days.

No rain expected in Brittnau today or tomorrow. The 15-minute detail for the next two hours is shown on demand.

Hourly weather in Brittnau

Sunday 27 Sep in Brittnau, hour by hour: sunny in the morning, sunny in the afternoon, sunny in the evening. Low 7 °C around 06:00, high 26 °C around 16:00. No rainy hour.

Show the 24-hour table

Time	Weather	Temp.	Wind
00:00	sunny	9 °C	3 km/h
01:00	sunny	9 °C	3 km/h
02:00	sunny	10 °C	2 km/h
03:00	sunny	10 °C	2 km/h
04:00	sunny	9 °C	2 km/h
05:00	sunny	8 °C	2 km/h
06:00	sunny	7 °C	2 km/h
07:00	sunny	8 °C	2 km/h
08:00	sunny	8 °C	2 km/h
09:00	sunny	11 °C	1 km/h
10:00	sunny	14 °C	1 km/h
11:00	sunny	18 °C	3 km/h
12:00	sunny	20 °C	6 km/h
13:00	sunny	23 °C	8 km/h
14:00	sunny	25 °C	10 km/h
15:00	sunny	26 °C	10 km/h
16:00	sunny	26 °C	9 km/h
17:00	sunny	26 °C	7 km/h
18:00	sunny	25 °C	4 km/h
19:00	sunny	22 °C	4 km/h
20:00	sunny	18 °C	6 km/h
21:00	sunny	16 °C	5 km/h
22:00	mostly sunny	14 °C	3 km/h
23:00	mostly sunny	12 °C	4 km/h

Hourly forecast issued 27.09.2026 for Brittnau (536 m), Swiss local time, Open-Meteo model. The interactive block at the top of the page covers 16 days and refreshes every hour.

Brittnau weather tomorrow

Tomorrow, Monday 28 Sep, in Brittnau: overcast, 9 to 26 °C, wind up to 5 km/h. No precipitation expected.

Brittnau weekend weather

This weekend in Brittnau: Saturday fog, 13 to 21 °C; Sunday partly cloudy, 7 to 26 °C.

Will it rain in Brittnau this week?

Yes: 1 day with precipitation is expected in Brittnau over the next 7 days, 6.3 mm in total. Wettest day: Thursday 1 Oct (6.3 mm).

The best day to go out in Brittnau

The best day of the next 7 in Brittnau: Sunday 27 Sep, partly cloudy, up to 26 °C.

Among the 155 municipalities of canton Aargau covered by the MeteoSwiss 1991-2020 normals, Brittnau ranks 5 for annual precipitation (1095 mm) and 54 for sunshine (1635 hours per year). July's hottest day averages 32.0 °C; January's coldest night drops to -9.8 °C.

The last 7 days in Brittnau

From 20 Sep to 26 Sep: 14.4 °C on average, in line with the September normal (13.6 °C), 0 mm of precipitation (7-day normal: 20 mm). Warmest day: saturday 26 Sep (25 °C); coolest night: wednesday 23 Sep (5 °C).

Day	Min	Max
Sun 20 Sep	9 °C	24 °C
Mon 21 Sep	11 °C	20 °C
Tue 22 Sep	7 °C	20 °C
Wed 23 Sep	5 °C	22 °C
Thu 24 Sep	7 °C	20 °C
Fri 25 Sep	5 °C	22 °C
Sat 26 Sep	6 °C	25 °C

Open-Meteo analyses of the last 7 days (models and assimilated observations), MeteoSwiss 1991–2020 normals. Updated nightly.

Climate of Brittnau: 1991–2020 normals

In Brittnau (536 m), the mean annual temperature is 9.0 °C. The warmest month is July (18.4 °C on average) and the coldest January (0.2 °C). About 1095 mm of precipitation falls per year, peaking in July (117 mm) with a minimum in February (65 mm). The sun shines for about 1635 hours a year, mostly in July (240 h). On average there are 89 frost days and 13 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.0 °C and the absolute minimum −9.8 °C.

9.0 °CMean annual temperature

1095 mmPrecipitation per year

1635 hSunshine hours per year

89Frost days per year

53Summer days (≥ 25 °C)

JFMAMJJASOND

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

Month	Mean T	Abs. max	Abs. min	Precip. (mm)	Sunshine (h)	Frost days	Summer days
Jan	0.2 °C	10.2 °C	−9.8 °C	80	42	21	0
Feb	0.8 °C	12.5 °C	−9.5 °C	65	80	20	0
Mar	4.8 °C	18.2 °C	−5.9 °C	73	139	15	0
Apr	8.7 °C	22.9 °C	−2.5 °C	76	175	4	1
May	12.9 °C	27.1 °C	1.8 °C	111	194	0	4
Jun	16.7 °C	30.6 °C	5.7 °C	104	218	0	12
Jul	18.4 °C	32.0 °C	8.4 °C	117	240	0	17
Aug	17.8 °C	31.0 °C	7.6 °C	116	218	0	15
Sep	13.6 °C	25.9 °C	3.7 °C	86	157	0	4
Oct	9.2 °C	20.6 °C	−0.5 °C	87	94	2	0
Nov	4.1 °C	14.5 °C	−4.8 °C	82	45	9	0
Dec	0.9 °C	10.7 °C	−8.3 °C	98	33	18	0
Year	9.0 °C	32.0 °C	−9.8 °C	1095	1635	89	53

Source: MeteoSwiss open data (1991–2020 normals) — stations Wynau (8 km, 422 m), Gösgen (13 km, 380 m), Buchs / Aarau (19 km, 387 m), adjusted to the elevation of Brittnau (536 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.