Iceland Weather in September: Temperature, Precipitation, Wind

Temperature
8.9°C
48°F
High temperature
11.6°C
52.8°F
Low temperature
6°C
42.9°F
Feels like
7.5°C
45.5°F
Rainy days
30 days
Rainfall level
2.15mm
0.08 inch
Cloud coverage
74.5%
Wind speed
26.7km/h
16.6mph
Daylight time
13:01:51
UV index
0.4
1
rain
11.5°C
53.0°F
2
rain
11.4°C
53.0°F
3
rain
8.8°C
48.0°F
4
rain
9.1°C
48.0°F
5
rain
10.9°C
52.0°F
6
rain
12.1°C
54.0°F
7
rain
10.3°C
51.0°F
8
rain
9.9°C
50.0°F
9
rain
9.0°C
48.0°F
10
rain
8.5°C
47.0°F
11
rain
7.6°C
46.0°F
12
rain
7.0°C
45.0°F
13
rain
8.3°C
47.0°F
14
rain
8.8°C
48.0°F
15
rain
7.8°C
46.0°F
16
rain
9.8°C
50.0°F
17
rain
7.8°C
46.0°F
18
rain
8.1°C
47.0°F
19
rain
9.5°C
49.0°F
20
rain
9.5°C
49.0°F
21
rain
5.6°C
42.0°F
22
rain
4.7°C
40.0°F
23
rain
7.0°C
45.0°F
24
rain
8.3°C
47.0°F
25
rain
10.8°C
51.0°F
26
rain
11.4°C
53.0°F
27
rain
9.8°C
50.0°F
28
rain
9.1°C
48.0°F
29
rain
6.4°C
44.0°F
30
rain
7.3°C
45.0°F

In September, Iceland has an average temperature of 8.9°C (48°F), with highs of 11.6°C (53°F) and lows of 6.0°C (43°F). It feels slightly cooler than this, with an average “feels like” temperature of 7.5°C (45.5°F). The humidity is relatively high at 76.7%, and there is an average of 15.1% cloud cover.

September is the beginning of autumn in Iceland, and the weather starts to cool down. It is a transitional month, with some characteristics of both summer and winter. The daylight hours begin to decrease, but there is still a reasonable amount of daylight. Iceland experiences an average of 15 hours of daylight in September, with the sunrise around 6:51 am and sunset around 7:52 pm. Precipitation is still high in September, with an average of 2.15 inches of rainfall throughout the month. There is a 100% chance of precipitation, and it is most commonly in the form of rain. Iceland has an average of 30 rainy days in September.

What is the temperature in Iceland in September?

Average air temperature in Iceland is 8.9°C (48°F) in September. The outside temperature in Iceland feels like 7.5°C (45.5°F) on a typical September day. The highest average temperature during sunny days is 11.6°C (52.8°F) and feels like 11.3°C (52.3°F). The lowest average temperature after dark is 6°C (42.9°F) which feels like 3.8°C (38.8°F).

Daily Temperature in Iceland in September 0°C / 32.0°F 5°C / 41.0°F 10°C / 50.0°F 15°C / 59.0°F 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

How hot is Iceland in September?

The hot temperature in September in Iceland rises to 14.1°C (57.4°F) on sunny days with low cloud coverage and 76.7% humidity. During hottest days of September it feels like 14.1 °C (57.4°F). The average maximum temp in Iceland is 11.6°C (57.4°F) during day time in September.

How cold is Iceland in September?

The coldest temp in Iceland in September drops to 1.1°C (34°F) during the cold nights. With 26.7km/h (16.6mph) winds and 76.7% humidity it feels like -2.3°C (27.9°F) on the coldest nights. The average minimum temperature is 6°C (42.9°F) during night time in September.

Does it rain in Iceland in September?

Yes, it rains for 30 days in Iceland in September averaging 2.15 mm of precipitation. Iceland has a 100% chance for rain throughout the entire month of September.

How much does it rain in Iceland throughout September?

Iceland has 2.15 mm (0.08 inch) of rain per day on average in September. It rains for an average of 30 days out of the entire month.

Is Iceland windy in September?

The average speed of wind in Iceland during September is 26.7km/h (16.6mph) and average windgust is 43.7km/h (27.2mph). On some days in September wind can reach up to 62.5km/h (38.8mph).

Daily wind speed in Iceland in September 0km/h (0mph) 16km/h (10mph) 32km/h (20mph) 48km/h (30mph) 64km/h (40mph) 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

What is the direction of the wind in Iceland in September?

Most days of September the wind is blowing from Southeast direction in Iceland.

What are the humidity levels in Iceland in September?

The average humidity levels in Iceland in September are 76.7%. Daily humidity levels in Iceland range from 59.8% to 97.1% during September.

Daily humidity levels in Iceland in September 0% 25% 50% 75% 100% 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

How many hours of daylight are in Iceland in September?

Iceland has 13 hours 01 minutes of daylight in September on average. Sunset and sunrise times gradually change throughout the month. Sunrise in Iceland in September is at 6:51:04 and the sunset is at 19:52:56.

What is the cloud coverage in Iceland in September?

Clouds cover 74.5% of the sky on average throughout September in Iceland. The cloud coverage ranges from 24.4% to 98.7% depending on the day of the month.

What is the UV level in September in Iceland?

The average UV index in Iceland is 0.4 in September. UV levels change throughout the month and range from 0 to 2.

What is the solar radiation in Iceland in September?

The average solar radiation is 2.6 W/m2 (Watts per square meter) in Iceland during September. However solar radiation levels change throughout the month and range from 0 W/m2 to 14.7 W/m2.

What is the solar energy during September in Iceland?

The average solar energy during September in Iceland is 0.1 MJ/m2 (megajoules per square metre). Solar energy ranges from 0 MJ/m2, to 0.7 MJ/m2 during September.

Are there severe weather risks in Iceland in September?

Yes, there is a % risk for severe weather in Iceland in September.

What is the air pressure in Iceland in September?

On average the air pressure in Iceland in September is 1002 mb (millibars). Throughout the month the sea level pressure ranges from 987 mb to 1018.6 mb.

What is the visibility in Iceland in September?

The average daylight visibility in Iceland in September is 15.7 km (9.7 miles). Depending on the precipitation the visibility ranges from 9.2 km (5.7 miles) to 21.2 km (13.2 miles) throughout September.

What is the dew point in Iceland in September?

The average dew point in Iceland during September is 4.8°C (40.6°F).

Where is the data for Iceland climate in September coming from?

The climate data for Iceland in September is collected from the following weather stations.

  • KEFLAVIK, IC
  • REYKJAVIK, IC
  • STRAUMSVIK, IC
  • REYKJAVIK, IC
  • BIKF
  • BIRK
  • DW2431 Kopavogur IS