What is the weather in Sumiswald today?

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

What is the 15-day forecast for Sumiswald?

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

Will it rain tomorrow in Sumiswald?

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

What is the air quality in Sumiswald?

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

Are there weather alerts for Sumiswald?

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

At what altitude is Sumiswald located?

Sumiswald sits at around 733 m above sea level in the canton of Bern. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.

What is the warmest month in Sumiswald?

The warmest month in Sumiswald is July, averaging 17.5 °C (1991–2020 normal). The coldest is January at −0.0 °C.

How much does it rain in Sumiswald per year?

Sumiswald receives about 1227 mm of precipitation a year. The wettest month is August (138 mm), the driest February (68 mm).

When is the best time to visit Sumiswald?

For warmth and sunshine: July (17.5 °C on average, — h of sun). The coldest month is January (−0.0 °C). Check the 15-day forecast above for your dates.

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Home › Bern › Sumiswald

Weather in Sumiswald

Bern, 733 m · continuously updated

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

Temperature · last 4 and next 28 hours

Sumiswald weather: the next 24 hours

Updated hourly.

Sumiswald weather hour by hour (48 h)

Sumiswald 15-day forecast

Two-week trend.

Sumiswald 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 Sumiswald

Neighbouring municipalities, as the crow flies.

Affoltern im Emmental4 km Dürrenroth4 km Wynigen5 km Heimiswil5 km Walterswil (BE)5 km Trachselwald6 km Rüegsau6 km Oeschenbach7 km

7-day forecast for Sumiswald

Today (Sunday 27 Sep) in Sumiswald: partly cloudy, 12 to 25 °C, precipitation 0.0 mm (0 %), wind up to 8 km/h. Tomorrow: overcast, 13 to 24 °C.

Day	Weather	Min	Max	Precip.	Wind
Today	partly cloudy	12 °C	25 °C	0.0 mm	8 km/h
Tomorrow	overcast	13 °C	24 °C	0.0 mm	6 km/h
Tue 29 Sep	overcast	14 °C	24 °C	0.0 mm	8 km/h
Wed 30 Sep	overcast	16 °C	21 °C	0.0 mm	7 km/h
Thu 1 Oct	light rain	14 °C	17 °C	4.5 mm	7 km/h
Fri 2 Oct	fog	13 °C	18 °C	0.0 mm	9 km/h
Sat 3 Oct	fog	11 °C	20 °C	0.0 mm	5 km/h

Forecast updated on 27.09.2026 at 04:37 (Open-Meteo model, elevation 733 m). The interactive block at the top refreshes hourly and covers 16 days.

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

Hourly weather in Sumiswald

Sunday 27 Sep in Sumiswald, hour by hour: sunny in the morning, sunny in the afternoon, sunny in the evening. Low 12 °C around 07:00, high 25 °C around 16:00. No rainy hour.

Show the 24-hour table

Time	Weather	Temp.	Wind
00:00	sunny	13 °C	6 km/h
01:00	sunny	13 °C	5 km/h
02:00	sunny	13 °C	5 km/h
03:00	sunny	13 °C	5 km/h
04:00	sunny	13 °C	4 km/h
05:00	sunny	12 °C	5 km/h
06:00	sunny	12 °C	5 km/h
07:00	sunny	12 °C	5 km/h
08:00	sunny	12 °C	5 km/h
09:00	sunny	15 °C	4 km/h
10:00	sunny	18 °C	3 km/h
11:00	sunny	21 °C	5 km/h
12:00	sunny	21 °C	8 km/h
13:00	sunny	23 °C	9 km/h
14:00	sunny	24 °C	8 km/h
15:00	sunny	25 °C	9 km/h
16:00	sunny	25 °C	9 km/h
17:00	sunny	25 °C	7 km/h
18:00	sunny	24 °C	5 km/h
19:00	sunny	21 °C	1 km/h
20:00	sunny	18 °C	4 km/h
21:00	sunny	17 °C	5 km/h
22:00	sunny	16 °C	6 km/h
23:00	sunny	16 °C	5 km/h

Hourly forecast issued 27.09.2026 for Sumiswald (733 m), Swiss local time, Open-Meteo model. The interactive block at the top of the page covers 16 days and refreshes every hour.

Sumiswald weather tomorrow

Tomorrow, Monday 28 Sep, in Sumiswald: overcast, 13 to 24 °C, wind up to 6 km/h. No precipitation expected.

Sumiswald weekend weather

This weekend in Sumiswald: Saturday fog, 11 to 20 °C; Sunday partly cloudy, 12 to 25 °C.

Will it rain in Sumiswald this week?

Yes: 1 day with precipitation is expected in Sumiswald over the next 7 days, 4.5 mm in total. Wettest day: Thursday 1 Oct (4.5 mm).

The best day to go out in Sumiswald

The best day of the next 7 in Sumiswald: Sunday 27 Sep, partly cloudy, up to 25 °C.

The last 7 days in Sumiswald

From 20 Sep to 26 Sep: 14.9 °C on average, 1.7 °C above the September normal (13.2 °C), 0 mm of precipitation (7-day normal: 23 mm). Warmest day: saturday 26 Sep (24 °C); coolest night: wednesday 23 Sep (6 °C).

Day	Min	Max
Sun 20 Sep	11 °C	22 °C
Mon 21 Sep	11 °C	19 °C
Tue 22 Sep	9 °C	18 °C
Wed 23 Sep	6 °C	21 °C
Thu 24 Sep	9 °C	19 °C
Fri 25 Sep	8 °C	21 °C
Sat 26 Sep	10 °C	24 °C

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

Climate of Sumiswald: 1991–2020 normals

In Sumiswald (733 m), the mean annual temperature is 8.5 °C. The warmest month is July (17.5 °C on average) and the coldest January (−0.0 °C). About 1227 mm of precipitation falls per year, peaking in August (138 mm) with a minimum in February (68 mm). On average there are 98 frost days and 9 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 30.5 °C and the absolute minimum −11.0 °C.

8.5 °CMean annual temperature

1227 mmPrecipitation per year

98Frost days per year

46Summer days (≥ 25 °C)

JFMAMJJASOND

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

Month	Mean T	Abs. max	Abs. min	Precip. (mm)	Frost days	Summer days
Jan	−0.0 °C	10.8 °C	−11.0 °C	73	23	0
Feb	0.5 °C	12.6 °C	−10.6 °C	68	21	0
Mar	4.3 °C	17.2 °C	−6.6 °C	78	15	0
Apr	7.8 °C	21.6 °C	−3.1 °C	91	5	0
May	12.0 °C	25.9 °C	1.0 °C	134	0	3
Jun	15.7 °C	29.1 °C	4.6 °C	135	0	10
Jul	17.5 °C	30.5 °C	7.4 °C	138	0	15
Aug	17.2 °C	29.9 °C	6.8 °C	138	0	14
Sep	13.2 °C	24.9 °C	3.2 °C	101	0	3
Oct	9.1 °C	20.9 °C	−1.3 °C	94	2	0
Nov	3.9 °C	15.3 °C	−5.8 °C	84	11	0
Dec	0.7 °C	11.2 °C	−9.6 °C	94	21	0
Year	8.5 °C	30.5 °C	−11.0 °C	1227	98	46

Source: MeteoSwiss open data (1991–2020 normals) — stations Koppigen (12 km, 485 m), Langnau i.E. (14 km, 744 m), Napf (17 km, 1404 m), adjusted to the elevation of Sumiswald (733 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.