Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
As September commences, the average high-temperature subtly reduces, transitioning from a cool 12.8°C (55°F) in August to a frosty 9.6°C (49.3°F). Akranes's nocturnal September readings average at a still chilly 6.2°C (43.2°F), showing little variation from the daytime temperatures.Humidity
January, February and September, with an average relative humidity of 82%, are the most humid months in Akranes.Rainfall
In Akranes, Iceland, in September, during 17.8 rainfall days, 40mm (1.57") of precipitation is typically accumulated. In Akranes, during the entire year, the rain falls for 166.2 days and collects up to 416mm (16.38") of precipitation.Snowfall
June through September are months without snowfall in Akranes.Sea temperature
In Akranes, in September, the average water temperature is 9.7°C (49.5°F).Note: In 9.7°C (49.5°F), even brief exposure to 13°C (55.4°F) feels biting, and anything less than 10°C (50°F) risks cold shock and impaired breathing, considering one's health.
Daylight
The average length of the day in September in Akranes is 13h and 1min.On the first day of September, sunrise is at 06:12 and sunset at 20:44. On the last day of the month, sunrise is at 07:36 and sunset at 18:59 GMT.
Sunshine
In Akranes, Iceland, the average sunshine in September is 4.5h.UV index
The average daily maximum UV index in September in Akranes is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 2 in September interprets into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What are September temperatures in Akranes?
What is the most humid month in Akranes?
What is the average humidity in September in Akranes?
How much does it rain in Akranes in September?
When it does not snow in Akranes?
Does it snow in Akranes in September?
How cold is the water in September in Akranes?
How many hours of daylight does Akranes have in September?
What time are sunrise and sunset in September in Akranes?
How many hours of sunshine does Akranes have in September?
What is the UV index intensity in September in Akranes?
Average temperature in September
Akranes, Iceland
- Average high temperature in September: 9.6°C
The warmest month (with the highest average high temperature) is July (13.5°C).
The month with the lowest average high temperature is December (1.3°C).
- Average low temperature in September: 6.2°C
The month with the highest average low temperature is July (9.1°C).
The coldest month (with the lowest average low temperature) is December (-2.4°C).
Average pressure in September
Akranes, Iceland
- Average pressure in September: 1002.9mbar
The month with the highest atmospheric pressure is June (1013.8mbar).
The month with the lowest atmospheric pressure is January (996.6mbar).
Average wind speed in September
Akranes, Iceland
- Average wind speed in September: 20.4km/h
The windiest month (with the highest average wind speed) is February (24.9km/h).
The calmest months (with the lowest average wind speed) are June and July (14.9km/h).
Average humidity in September
Akranes, Iceland
- Average humidity in September: 82%
The months with the highest relative humidity are January, February and September (82%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
Akranes, Iceland
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is January (47mm).
The driest months (with the least rainfall) are June and July (25mm).
Average rainfall days in September
Akranes, Iceland
- Average rainfall days in September: 17.8 days
The month with the highest number of rainy days is September (17.8 days).
The month with the least rainy days is December (9.7 days).
Average snowfall in September
Akranes, Iceland
- Average snowfall in September: 0mm
The month with the highest snowfall is March (100mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Akranes, Iceland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Akranes, Iceland
- Average sea temperature in September: 9.7°C
The best months for swimming (with the highest average sea temperature) are July and August (11.3°C).
The coldest month (with the lowest average sea temperature) is March (4.3°C).
Average daylight in September /
Average sunshine in September
Akranes, Iceland
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 21h and 0min).
The month with the shortest days is December (Average daylight: 4h and 18min).
- Average sunshine in September: 4h and 3min
The month with the most sunshine is August (Average sunshine: 7h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in September
Akranes, Iceland
- Average sunshine days in September: 8.8 days
The month with the most sunshine days is December (14.1 days).
The month with the least sunshine days is September (8.8 days).
Average UV index in September
Akranes, Iceland
- Average UV index in September: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in September
Akranes, Iceland
- Average cloud cover in September: 65
The months with the most cloud cover are March and April (Cloud cover 68).
The months with the least cloud cover are August and December (Cloud cover 60).
Average visibility in September
Akranes, Iceland
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).
Akranes, Iceland
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