What is the weather in Bretzwil today?

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

What is the 15-day forecast for Bretzwil?

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

Will it rain tomorrow in Bretzwil?

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

What is the air quality in Bretzwil?

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

Are there weather alerts for Bretzwil?

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

At what altitude is Bretzwil located?

Bretzwil sits at around 644 m above sea level in the canton of Basel-Country. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.

What is the warmest month in Bretzwil?

The warmest month in Bretzwil is July, averaging 18.2 °C (1991–2020 normal). The coldest is January at 0.3 °C.

How much does it rain in Bretzwil per year?

Bretzwil receives about 1013 mm of precipitation a year. The wettest month is May (111 mm), the driest February (56 mm).

When is the best time to visit Bretzwil?

For warmth and sunshine: July (18.2 °C on average, 238 h of sun). The coldest month is January (0.3 °C). Check the 15-day forecast above for your dates.

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Home › Basel-Country › Bretzwil

Weather in Bretzwil

Basel-Country, 644 m · continuously updated

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

Temperature · last 4 and next 28 hours

Bretzwil weather: the next 24 hours

Updated hourly.

Bretzwil weather hour by hour (48 h)

Bretzwil 15-day forecast

Two-week trend.

Bretzwil 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 Bretzwil

Neighbouring municipalities, as the crow flies.

Reigoldswil3 km Lauwil3 km Mümliswil-Ramiswil3 km Seewen4 km Zullwil4 km Waldenburg4 km Nunningen4 km Titterten5 km

7-day forecast for Bretzwil

Today (Sunday 27 Sep) in Bretzwil: mostly sunny, 16 to 27 °C, precipitation 0.0 mm (0 %), wind up to 10 km/h. Tomorrow: overcast, 18 to 27 °C.

Day	Weather	Min	Max	Precip.	Wind
Today	mostly sunny	16 °C	27 °C	0.0 mm	10 km/h
Tomorrow	overcast	18 °C	27 °C	0.0 mm	11 km/h
Tue 29 Sep	overcast	16 °C	26 °C	0.1 mm	7 km/h
Wed 30 Sep	overcast	17 °C	24 °C	0.3 mm	6 km/h
Thu 1 Oct	light rain	15 °C	18 °C	6.0 mm	5 km/h
Fri 2 Oct	fog	14 °C	19 °C	0.0 mm	7 km/h
Sat 3 Oct	fog	14 °C	21 °C	0.0 mm	6 km/h

Forecast updated on 27.09.2026 at 04:37 (Open-Meteo model, elevation 644 m). The interactive block at the top refreshes hourly and covers 16 days.

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

Hourly weather in Bretzwil

Sunday 27 Sep in Bretzwil, hour by hour: sunny in the morning, sunny in the afternoon, sunny in the evening. Low 16 °C around 03:00, high 27 °C around 16:00. No rainy hour.

Show the 24-hour table

Time	Weather	Temp.	Wind
00:00	sunny	17 °C	7 km/h
01:00	sunny	17 °C	6 km/h
02:00	sunny	17 °C	7 km/h
03:00	sunny	16 °C	9 km/h
04:00	sunny	17 °C	9 km/h
05:00	sunny	17 °C	9 km/h
06:00	sunny	17 °C	9 km/h
07:00	sunny	16 °C	9 km/h
08:00	sunny	17 °C	8 km/h
09:00	sunny	20 °C	4 km/h
10:00	sunny	22 °C	2 km/h
11:00	sunny	23 °C	4 km/h
12:00	sunny	24 °C	6 km/h
13:00	sunny	26 °C	6 km/h
14:00	sunny	27 °C	6 km/h
15:00	sunny	27 °C	6 km/h
16:00	sunny	27 °C	3 km/h
17:00	mostly sunny	26 °C	7 km/h
18:00	sunny	25 °C	6 km/h
19:00	sunny	22 °C	8 km/h
20:00	sunny	20 °C	9 km/h
21:00	mostly sunny	20 °C	9 km/h
22:00	sunny	20 °C	9 km/h
23:00	sunny	20 °C	9 km/h

Hourly forecast issued 27.09.2026 for Bretzwil (644 m), Swiss local time, Open-Meteo model. The interactive block at the top of the page covers 16 days and refreshes every hour.

Bretzwil weather tomorrow

Tomorrow, Monday 28 Sep, in Bretzwil: overcast, 18 to 27 °C, wind up to 11 km/h. No precipitation expected.

Bretzwil weekend weather

This weekend in Bretzwil: Saturday fog, 14 to 21 °C; Sunday mostly sunny, 16 to 27 °C.

Will it rain in Bretzwil this week?

Yes: 1 day with precipitation is expected in Bretzwil over the next 7 days, 6.4 mm in total. Wettest day: Thursday 1 Oct (6.0 mm).

The best day to go out in Bretzwil

The best day of the next 7 in Bretzwil: Sunday 27 Sep, mostly sunny, up to 27 °C.

The last 7 days in Bretzwil

From 20 Sep to 26 Sep: 16.2 °C on average, 2.6 °C above 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 (8 °C).

Day	Min	Max
Sun 20 Sep	13 °C	23 °C
Mon 21 Sep	12 °C	18 °C
Tue 22 Sep	9 °C	19 °C
Wed 23 Sep	8 °C	22 °C
Thu 24 Sep	13 °C	20 °C
Fri 25 Sep	9 °C	21 °C
Sat 26 Sep	14 °C	25 °C

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

Climate of Bretzwil: 1991–2020 normals

In Bretzwil (644 m), the mean annual temperature is 9.0 °C. The warmest month is July (18.2 °C on average) and the coldest January (0.3 °C). About 1013 mm of precipitation falls per year, peaking in May (111 mm) with a minimum in February (56 mm). The sun shines for about 1673 hours a year, mostly in July (238 h). On average there are 82 frost days and 8 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 31.3 °C and the absolute minimum −9.7 °C.

9.0 °CMean annual temperature

1013 mmPrecipitation per year

1673 hSunshine hours per year

82Frost days per year

42Summer 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	0.3 °C	11.2 °C	−9.7 °C	64	54	20	0
Feb	1.1 °C	12.8 °C	−9.1 °C	56	84	18	0
Mar	4.9 °C	17.8 °C	−5.5 °C	63	139	12	0
Apr	8.6 °C	22.4 °C	−2.4 °C	74	173	4	0
May	12.7 °C	26.2 °C	2.0 °C	111	192	0	3
Jun	16.3 °C	29.8 °C	5.9 °C	101	216	0	9
Jul	18.2 °C	31.3 °C	8.5 °C	109	238	0	14
Aug	17.8 °C	30.3 °C	7.8 °C	108	217	0	13
Sep	13.6 °C	25.3 °C	4.0 °C	84	159	0	3
Oct	9.2 °C	20.7 °C	−0.3 °C	84	100	1	0
Nov	4.1 °C	14.9 °C	−4.6 °C	77	56	9	0
Dec	1.0 °C	11.6 °C	−8.4 °C	82	45	18	0
Year	9.0 °C	31.3 °C	−9.7 °C	1013	1673	82	42

Source: MeteoSwiss open data (1991–2020 normals) — stations Basel / Binningen (17 km, 316 m), Rünenberg (18 km, 611 m), Wynau (19 km, 422 m), adjusted to the elevation of Bretzwil (644 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.