Hveragerði Weather in September
What's the weather like in Hveragerði (South) in September 2025?
The climate in Hveragerði during September can be summarized as cool and a little damp.
September is in the fall / autumn in Hveragerði and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 9°C (48°F), whilst at night 3°C (38°F) is normal.
| Daytime temperature | 9°C 48.2°F |
|---|---|
| Nightly temperature | 3.2°C 37.8°F |
| Average temperature | 6.1°C 43°F |
| Daily sunshine | 4 hrs |
| Avg rainfall | 97 mm 3.8 ins |
| Rainy days | 18 days |
| Sea temperature | 9.4°C 48.8°F |
| Humidity | 82% |
| Windspeed | 19.8kph 12 mph |
On average September is the 6th driest month of the year in Hveragerði with around 97mm 3.8 inches of rain making it a a little 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 hours of sunshine per day.
September temperatures in Hveragerði
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 Hveragerði in September 2025.
Other monthly averages
Best places to visit in September
Hveragerði weather stats
| Hottest month: | July | 12.8°C 55°F |
|---|---|---|
| Driest month: | May | 66mm 2.6ins |
| Sunniest month: | May | 3hrs |
| Coldest month: | January | 0.2°C 32.4°F |
| Wettest month: | October | 120mm 4.7ins |
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