October weather forecast and climate
Reykjavík, Iceland

The city buildings of Reykjavík, the capital city of Iceland, with a view of the sea, and a mountain with a snowy peak in the far distance
The city buildings of Reykjavík, the capital city of Iceland, with a view of the sea, and a mountain with a snowy peak in the far distance
October, like September, is another chilly autumn month in Reykjavík, Iceland, with average temperature ranging between max 6.2°C (43.2°F) and min 3.2°C (37.8°F).

Temperature

In October, the average high-temperature marginally drops, from a frosty 9.6°C (49.3°F) in September, to a still chilly 6.2°C (43.2°F). In Reykjavík, in October, the average low-temperature is 3.2°C (37.8°F).

Humidity

The average relative humidity in Reykjavík, Iceland, is 81%.

Rainfall

In Reykjavík, during October, the rain falls for 14.3 days and regularly aggregates up to 37mm (1.46") of precipitation. Throughout the year, there are 166.2 rainfall days, and 416mm (16.38") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. October is the first month it typically snows in Reykjavík, Iceland. Throughout October, in the average 0.6 snowfall days, it receives 3mm (0.12") of snow. In Reykjavík, Iceland, during the entire year, snow falls for 41.1 days, and aggregates up to 309mm (12.17") of snow.

Sea temperature

In Reykjavík, in October, the average water temperature is 8.2°C (46.8°F).
Note: Swimming in 8.2°C (46.8°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In October, the average length of the day is 9.7h.

Sunshine

The average sunshine in October is 4.2h.

UV index

In Reykjavík, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to the UV radiation for the average person.
Note: In October, the average maximum UV index of 2 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in October in Reykjavík?

In October, in Reykjavík, the average high-temperature is 6.2°C (43.2°F), and the average low-temperature is 3.2°C (37.8°F).

What is the average humidity in October in Reykjavík?

In October, the average relative humidity in Reykjavík, Iceland, is 81%.

How many days does it rain in October in Reykjavík?

In Reykjavík, in October, it is raining for 14.3 days, with typically 37mm (1.46") of accumulated precipitation.

When does it start to snow in Reykjavík?

October is the first month it typically snows in Reykjavík, Iceland. Throughout October, in the average 0.6 snowfall days, it receives 3mm (0.12") of snow.

How cold is the water in October in Reykjavík?

In October, the average sea temperature in Reykjavík is 8.2°C (46.8°F). Swimming in 8.2°C (46.8°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Reykjavík have in October?

The average length of the day in October in Reykjavík, Iceland, is 9.7h.

How many hours of sunshine does Reykjavík have in October?

The average sunshine in October in Reykjavík, Iceland, is 4.2h.

How high is the UV index in October in Reykjavík?

The average daily maximum UV index in October in Reykjavík, Iceland, is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to the UV radiation.
Average temperature in October - Reykjavík, Iceland
  • Average high temperature in October: 6.2°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 October: 3.2°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 October - Reykjavík, Iceland
  • Average pressure in October: 1003.6mbar

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 October - Reykjavík, Iceland
  • Average wind speed in October: 21.5km/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 October - Reykjavík, Iceland
  • Average humidity in October: 81%

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 October - Reykjavík, Iceland
  • Average rainfall in October: 37mm

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 October - Reykjavík, Iceland
  • Average rainfall days in October: 14.3 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 October - Reykjavík, Iceland
  • Average snowfall in October: 3mm

The month with the highest snowfall is March (100mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in October - Reykjavík, Iceland
  • Average snowfall days in October: 0.6 days

The month with the highest number of snowfall days is March (9.4 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in October - Reykjavík, Iceland
  • Average sea temperature in October: 8.2°C

The best month for swimming (with the highest average sea temperature) is July (11.4°C).
The coldest month (with the lowest average sea temperature) is March (5.1°C).

Average daylight in October / Average sunshine in October - Reykjavík, Iceland
  • Average daylight in October: 9.7h

The month with the longest days is June (Average daylight: 20.9h).
The month with the shortest days is December (Average daylight: 4.4h).

  • Average sunshine in October: 4.2h

The month with the most sunshine is August (Average sunshine: 7.4h).
The month with the least sunshine is January (Average sunshine: 2.4h).

Average sunshine days in October - Reykjavík, Iceland
  • Average sunshine days in October: 13.3 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 October - Reykjavík, Iceland
  • Average UV index in October: 2

The month with the highest UV index is July (UV index 4).
Months with the lowest UV index are January, February and November (UV index 1).

Average cloud cover in October - Reykjavík, Iceland
  • Average cloud cover in October: 63

Months with the most cloud cover are March and April (Cloud cover 68).
Months with the least cloud cover are August and December (Cloud cover 60).

Average visibility in October - Reykjavík, Iceland
  • Average visibility in October: 9km

The month with the highest visibility is June (10km).
Months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).