July 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 July

July in Reykjavík, Iceland, is a moderate summer month, with average temperature varying between 9.1°C (48.4°F) and 13.5°C (56.3°F).

Temperature

With an average high-temperature of 13.5°C (56.3°F) and an average low-temperature of 9.1°C (48.4°F), July is the warmest month.

Humidity

In July, the average relative humidity is 78%.

Rainfall

Months with the least rainfall are June and July Rain falls for 17.4 days and accumulates 25mm (0.98") of rain.

Snowfall

June through September are months without snowfall.

Sea temperature

July is the month with the warmest seawater in Reykjavík, Iceland, with an average sea temperature of 11.4°C (52.5°F).
Note: Swimming in 11.4°C (52.5°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.

Daylight

The average length of the day is 19.5h.

Sunshine

The average sunshine is 6.9h.

UV index

The month with the highest UV index is July, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV rays for the ordinary person.
Note: In July, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in Reykjavík?

With an average high-temperature of 13.5°C (56.3°F) and an average low-temperature of 9.1°C (48.4°F), July is the warmest month in Reykjavík, Iceland.

What is the average humidity in July in Reykjavík?

The average relative humidity in July is 78%.

What is the driest month in Reykjavík?

Months with the least rainfall in Reykjavík are June and July Rain falls for 17.4 days and accumulates 25mm (0.98") of rain.

How much does it rain in Reykjavík in July?

In Reykjavík, Iceland, during July, the rain falls for 17.4 days and regularly aggregates up to 25mm (0.98") of precipitation.

When it does not snow in Reykjavík?

June through September are months without snowfall.

When is the sea warmest in Reykjavík?

July is the month with the warmest seawater in Reykjavík, with an average sea temperature of 11.4°C (52.5°F).

What is the sea water temperature in July in Reykjavík?

In July, the average sea temperature in Reykjavík is 11.4°C (52.5°F). 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.

What is the average length of the day in July in Reykjavík?

In July, the average length of the day in Reykjavík, Iceland, is 19.5h.

How many hours of sunshine does Reykjavík have in July?

The average sunshine in July in Reykjavík, Iceland, is 6.9h.

What is the month with the highest UV index in Reykjavík?

The month with the highest UV index is July, with an average maximum UV index of 4.

How high is the UV index in July in Reykjavík?

In July, the average daily maximum UV index in Reykjavík is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV radiation.

Average temperature in July
Reykjavík, Iceland

Average temperature in July - Reykjavík, Iceland
  • Average high temperature in July: 13.5°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 July: 9.1°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 July
Reykjavík, Iceland

Average pressure in July - Reykjavík, Iceland
  • Average pressure in July: 1009.5mbar

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 July
Reykjavík, Iceland

Average wind speed in July - Reykjavík, Iceland
  • Average wind speed in July: 14.9km/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 July
Reykjavík, Iceland

Average humidity in July - Reykjavík, Iceland
  • Average humidity in July: 78%

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 July
Reykjavík, Iceland

Average rainfall in July - Reykjavík, Iceland
  • Average rainfall in July: 25mm

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 July
Reykjavík, Iceland

Average rainfall days in July - Reykjavík, Iceland
  • Average rainfall days in July: 17.4 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 July
Reykjavík, Iceland

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

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

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Average snowfall days in July
Reykjavík, Iceland

Average snowfall days in July - Reykjavík, Iceland
  • Average snowfall days in July: 0 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).

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Average sea temperature in July
Reykjavík, Iceland

Average sea temperature in July - Reykjavík, Iceland
  • Average sea temperature in July: 11.4°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 July /
Average sunshine in July
Reykjavík, Iceland

Average daylight in July / Average sunshine in July - Reykjavík, Iceland
  • Average daylight in July: 19.5h

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 July: 6.9h

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

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Average sunshine days in July
Reykjavík, Iceland

Average sunshine days in July - Reykjavík, Iceland
  • Average sunshine days in July: 9.2 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 July
Reykjavík, Iceland

Average UV index in July - Reykjavík, Iceland
  • Average UV index in July: 4

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).

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Average cloud cover in July
Reykjavík, Iceland

Average cloud cover in July - Reykjavík, Iceland
  • Average cloud cover in July: 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).

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Average visibility in July
Reykjavík, Iceland

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

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