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

Temperature

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

Humidity

In July, the average relative humidity in Reykjavík is 78%.

Rainfall

June and July are months with the least rain when the rain falls for 17.4 days and typically aggregates up to 25mm (0.98") of rain.

Snowfall

In Reykjavík snow does not fall in June through September.

Sea temperature

The month with the warmest seawater is July, with an average sea temperature of 11.4°C (52.5°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, the average length of the day is 19.5h.

Sunshine

In July, the average sunshine in Reykjavík, Iceland, is 6.9h.

UV index

July is the month with the highest UV index, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to the UV radiation 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 solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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.

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 temperature in July in Reykjavík?

The average high-temperature, in July, is 13.5°C (56.3°F), while the average low-temperature is 9.1°C (48.4°F).

What is the average humidity in July in Reykjavík?

In Reykjavík, the average relative humidity in July is 78%.

How much does it rain in Reykjavík in July?

In July, the rain falls for 17.4 days. Throughout July, 25mm (0.98") of precipitation is accumulated.

What is the driest month in Reykjavík?

June and July are months with the least rain when the rain falls for 17.4 days and typically aggregates up to 25mm (0.98") of rain.

When it does not snow in Reykjavík?

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

What is the month with the warmest sea water in Reykjavík?

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

How cold is the water in July in Reykjavík?

In Reykjavík, Iceland, the average seawater temperature in July is 11.4°C (52.5°F). Swimming in 11.4°C (52.5°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

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

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

How many hours of sunshine does Reykjavík have in July?

In Reykjavík, Iceland, the average sunshine in July is 6.9h.

When is the highest UV index in Reykjavík?

July is the month with the highest UV index in Reykjavík, Iceland, with an average maximum UV index of 4.

What is the UV index intensity in July in Reykjavík?

The average daily maximum UV index in July in Reykjavík, Iceland, is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV radiation.
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).

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).

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).

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%).

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).

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).

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).

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).

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).

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).

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).

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).

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).

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).