Weather in September in Reykjavík

< September >
	Normal Max/ High Temperature	11°C (52°F)
	Average Temperature	7°C (45°F)
	Min/ Low Temperature	6°C (43°F)
	Average Sea or Water Temp	10°C(50°F)
	Normal Precipitation	67mm (2.6in)
	Number of Wet Days (probability of rain on a day)	19 (63%)
	Average Sunlight per day	03h 25'
	Average Daylight per day	13h 16'
	Sunny (Cloudy) Daylight Hours	27% (73%)
	Sun altitude at solar noon on the 21st day.	26.5°

The average sea tempeature is 10 °C (50 °F).
The average temperature in Reykjavík in September is a little cool at 7.4 °C (45.32 °F).
Afternoons can be quite mild with average high temperatures reaching 11 °C (51.8 °F).
Overnight temperatures are generally cool with an average low of 6 °C (42.8 °F).
In September the variation/ range of daily average temperatures is 5 °C (9 °F).
Precipitation averages for September are moderate with 66.5mm (2.6 in) recorded across 19 days.
The blue above Reykjavík is dull having on average merely 3h 25' of brilliant solar radiation per day.
The shortest day is 11h 39' long and the longest day is 14h 52' long with an average length of 13h 16'.
There are approximately 9h 11' per day when the sun is occluded by cloud, haze, fog etc.
It is sunny approximately 27.1% of daylight hours and cloudy 72.9% of daylight hours.

Weather Trend Graph for September in Reykjavík, Iceland

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