Selfoss Weather in September
What's the weather like in Selfoss (South) in September 2024?
The climate in Selfoss during September can be summarized as cool and damp.
September is in the fall / autumn in Selfoss and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 10°C (50°F), whilst at night 4°C (39°F) is normal.
| Daytime temperature | 9.8°C 49.6°F |
|---|---|
| Nightly temperature | 4.1°C 39.3°F |
| Average temperature | 6.9°C 44.4°F |
| Daily sunshine | 4.1 hrs |
| Avg rainfall | 100 mm 3.9 ins |
| Rainy days | 18 days |
| Sea temperature | 11°C 51.8°F |
| Humidity | 83% |
| Windspeed | 20.9kph 13 mph |
On average September is the 6th wettest month of the year in Selfoss with around 100mm 3.9 inches of rain making it a damp time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.1 hours of sunshine per day.
September temperatures in Selfoss
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Selfoss in September 2024.
Other monthly averages
Best places to visit in September
Selfoss weather stats
| Hottest month: | July | 13.4°C 56.1°F |
|---|---|---|
| Driest month: | May | 67mm 2.6ins |
| Sunniest month: | May | 3hrs |
| Coldest month: | January | 1.1°C 34°F |
| Wettest month: | October | 120mm 4.7ins |
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