September weather forecast
Vestmannaeyjar, Iceland

September in Vestmannaeyjar, Iceland, marks the arrival of autumn, with evident changes in weather conditions. The sea temperature starts to decrease, averaging a cooler 10.3°C (50.5°F). In comparison to August, daylight shrinks and rainfall increases. October will continue this trend with a further drop in temperatures. September holds the promise of gentle shifts in weather, with the city's spectacular vistas set against the backdrop of soft autumnal hues.

Temperature

The onset of September in Vestmannaeyjar marks an average high-temperature of a chilly 9.2°C (48.6°F), hardly differing from August's 11.6°C (52.9°F). In the month of September, Vestmannaeyjar experiences a minor discrepancy from peak daytime temperatures, settling at an average low-temperature of 5.9°C (42.6°F).

Rainfall

In Vestmannaeyjar, in September, during 15.7 rainfall days, 131mm (5.16") of precipitation is typically accumulated. In Vestmannaeyjar, during the entire year, the rain falls for 190 days and collects up to 1588mm (62.52") of precipitation.

Sea temperature

In Vestmannaeyjar, the average seawater temperature in September is 10.3°C (50.5°F).
Note: Staying in 10.3°C (50.5°F) waters for just a few moments at 13°C (55.4°F) can be harrowing, and below 10°C (50°F) poses breathing and cold shock risks, depending on individual tolerance.

Daylight

In Vestmannaeyjar, Iceland, the average length of the day in September is 12h and 59min.
On the first day of the month, sunrise is at 06:07 and sunset at 20:33. On the last day of September, in Vestmannaeyjar, sunrise is at 07:28 and sunset at 18:53 GMT.