August weather forecast
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

Weather in August

The last month of the summer, August, is also a fresh month in Reykjavík, Iceland, with an average temperature fluctuating between 12.8°C (55°F) and 8.4°C (47.1°F).

Temperature

In August, the average high-temperature is essentially the same as in July - a cool 12.8°C (55°F). In Reykjavík, the average low-temperature is 8.4°C (47.1°F).

Humidity

In Reykjavík, the average relative humidity in August is 79%.

Rainfall

In August, the rain falls for 14.8 days. Throughout August, 37mm (1.46") of precipitation is accumulated. In Reykjavík, Iceland, during the entire year, the rain falls for 166.2 days and collects up to 416mm (16.38") of precipitation.

Snowfall

In Reykjavík, snow does not fall in June through September.

Sea temperature

In August, the average sea temperature in Reykjavík, Iceland, is 11.3°C (52.3°F).
Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

Daylight

In Reykjavík, Iceland, the average length of the day in August is 16h and 19min.
On the first day of the month, sunrise is at 04:35 and sunset at 22:32. On the last day of August, sunrise is at 06:07 and sunset at 20:47 GMT.

Sunshine

With an average of 7.4h of sunshine, August has the most sunshine of the year in Reykjavík.

UV index

In Reykjavík, the average daily maximum UV index in August is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: In August, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in August in Reykjavík?

In August, in Reykjavík, Iceland, the average high-temperature is 12.8°C (55°F), and the average low-temperature is 8.4°C (47.1°F).

What is the average humidity in August in Reykjavík?

The average relative humidity in August in Reykjavík is 79%.

How many days does it rain in August in Reykjavík?

In Reykjavík, Iceland, in August, during 14.8 rainfall days, 37mm (1.46") of precipitation is typically accumulated.

When it does not snow in Reykjavík?

June through September are months without snowfall in Reykjavík, Iceland.

What is the water temperature in August in Reykjavík?

In Reykjavík, Iceland, in August, the average water temperature is 11.3°C (52.3°F). Swimming in 11.3°C (52.3°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Reykjavík have in August?

In August, the average day length in Reykjavík, Iceland, is 16h and 19min.

What time are sunrise and sunset in August in Reykjavík?

In August, on the first day of the month, sunrise is at 04:35 and sunset at 22:32. On the last day of the month, sunrise is at 06:07 and sunset at 20:47 GMT.

What month has the most sunshine in Reykjavík?

August has the most sunshine of the year in Reykjavík, Iceland, with an average of 7.4h of sunshine.

How many hours of sunshine does Reykjavík have in August?

In Reykjavík, the average sunshine duration in August is 7.4h.

What is the UV index reading in August in Reykjavík?

The average daily maximum UV index in August in Reykjavík, Iceland, is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Reykjavík, Iceland

Average temperature in August - Reykjavík, Iceland
  • Average high temperature in August: 12.8°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 August: 8.4°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).

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Average pressure in August
Reykjavík, Iceland

Average pressure in August - Reykjavík, Iceland
  • Average pressure in August: 1007.7mbar

The month with the highest atmospheric pressure is June (1013.8mbar).
The month with the lowest atmospheric pressure is January (996.6mbar).

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Average wind speed in August
Reykjavík, Iceland

Average wind speed in August - Reykjavík, Iceland
  • Average wind speed in August: 16km/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).

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Average humidity in August
Reykjavík, Iceland

Average humidity in August - Reykjavík, Iceland
  • Average humidity in August: 79%

The months with the highest relative humidity are January, February and September (82%).
The month with the lowest relative humidity is May (75%).

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Average rainfall in August
Reykjavík, Iceland

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

The wettest month (with the highest rainfall) is January (47mm).
The driest months (with the least rainfall) are June and July (25mm).

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Average rainfall days in August
Reykjavík, Iceland

Average rainfall days in August - Reykjavík, Iceland
  • Average rainfall days in August: 14.8 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).

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Average snowfall in August
Reykjavík, Iceland

Average snowfall in August - Reykjavík, Iceland
  • Average snowfall in August: 0mm

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

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Average snowfall days in August
Reykjavík, Iceland

Average snowfall days in August - Reykjavík, Iceland
  • Average snowfall days in August: 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).

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Average sea temperature in August
Reykjavík, Iceland

Average sea temperature in August - Reykjavík, Iceland
  • Average sea temperature in August: 11.3°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).

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Average daylight in August /
Average sunshine in August
Reykjavík, Iceland

Average daylight in August / Average sunshine in August - Reykjavík, Iceland
  • Average daylight in August: 16h and 19min

The month with the longest days is June (Average daylight: 20h and 51min).
The month with the shortest days is December (Average daylight: 4h and 23min).

  • Average sunshine in August: 7h and 24min

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).

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Average sunshine days in August
Reykjavík, Iceland

Average sunshine days in August - Reykjavík, Iceland
  • Average sunshine days in August: 12.8 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).

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Average UV index in August
Reykjavík, Iceland

Average UV index in August - Reykjavík, Iceland
  • Average UV index in August: 3

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).

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Average cloud cover in August
Reykjavík, Iceland

Average cloud cover in August - Reykjavík, Iceland
  • Average cloud cover in August: 60

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).

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Average visibility in August
Reykjavík, Iceland

Average visibility in August - Reykjavík, Iceland
  • Average visibility in August: 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).

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