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Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Interlaken, BE
Content continues below
September
Average Temperature
High
14°
Feels 14
Low
4°
Feels 3
Average Precipitation
13 Days
Rain amount
90mm
Snow amount
0.6cm
Content continues below
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
15°
11
21°
12
22°
13
22°
14
25°
15
26°
16
16°
17
15°
18
15°
19
20°
20
19°
21
20°
22
22°
23
23°
24
25°
25
26
27
28
29
30
Forecast
Thursday, September 10, 2026
Day
15°
Feels 15
Wind
4 km/h S
Gust
6 km/h
Humidity
74%
P.O.P
70%
Rain
~1 mm
Night
11°
Feels 11
Wind
3 km/h NW
Gust
4 km/h
Humidity
89%
P.O.P
60%
Rain
~1 mm
Historical Averages
Sep 10
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.