July weather forecast
Reykjavík, Iceland

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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 shines as the warmest month in Reykjavík, Iceland, achieving an average high of 13.5°C (56.3°F). Reflecting the height of summer season, there's a complete absence of snowfall while the sea temperature peaks at 11.4°C (52.5°F). Reykjavík thrives in the summer heat with numerous activities, from hiking trails to alfresco dining, becoming popular among citizens and tourists. The extended daylight hours illuminate the beauty of city parks, bustling streets, and vibrant outdoor life. Coupled with July's warmth, the city truly comes alive, offering an exceptional blend of natural beauty and culture.

Temperature

Reykjavík reaches its highest average temperatures in July, measuring 13.5°C (56.3°F) at the peak and 9.1°C (48.4°F) at the lowest.

Humidity

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

Rainfall

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

Snowfall

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

Sea temperature

The month with the warmest seawater in Reykjavík is July, with an average sea temperature of 11.4°C (52.5°F).
Note: Swimming in 11.4°C (52.5°F) can be lethal. Merely spending a few minutes in 13°C (55.4°F) waters feels harsh, and venturing below 10°C (50°F) might disrupt breathing control and bring about cold shock, contingent on individual resilience.

Daylight

The average length of the day in July in Reykjavík is 19h and 34min.
On the first day of the month, sunrise is at 03:07 and sunset at 23:55. On the last day of July, in Reykjavík, Iceland, sunrise is at 04:33 and sunset at 22:33 GMT.

Sunshine

The average sunshine in July in Reykjavík is 6.9h.

UV index

July is the month with the highest UV index in Reykjavík, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 4 during July leads to these advisories:
Put precautions into practice - Protective measures against sun-induced damage are advised. Around midday, solar radiation is most harmful; hence, exposure should be limited. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

What part of the year is the hottest in Reykjavík?

July temperatures tend to peak at an average high of 13.5°C (56.3°F) and dip to a low of 9.1°C (48.4°F).

What is the temperature in July in Reykjavík?

The average high-temperature and low-temperature in Reykjavík during July are 13.5°C (56.3°F) and 9.1°C (48.4°F) respectively.

What is the average humidity in July in Reykjavík?

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

What is the driest month in Reykjavík?

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

How many days does it rain in July in Reykjavík?

In Reykjavík, in July, it is raining for 17.4 days, with typically 25mm (0.98") of accumulated precipitation.

When it does not snow in Reykjavík?

June through September are months without snowfall.

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

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

How cold is the water in July in Reykjavík?

In July, the average sea temperature 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.

How many hours of daylight does Reykjavík have in July?

The average day length in July in Reykjavík, Iceland, is 19h and 34min.

What time are sunrise and sunset in July in Reykjavík?

In July, on the first day of the month, sunrise is at 03:07 and sunset at 23:55. On the last day of the month, sunrise is at 04:33 and sunset at 22:33 GMT.

How many hours of sunshine does Reykjavík have in July?

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

When is the highest UV index in Reykjavík?

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

What is the UV index reading in July in Reykjavík?

In July, the average daily maximum UV index in Reykjavík is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJFMAMJJulyASOND
Jun
July
Aug
Average high temperature
11.7°C 53.1°F
13.5°C 56.3°F
12.8°C 55°F
Average low temperature
7.4°C 45.3°F
9.1°C 48.4°F
8.4°C 47.1°F
Average pressure
1013.8mbar 29.94inHg
1009.5mbar 29.81inHg
1007.7mbar 29.76inHg
Average wind speed
14.9km/h 9.3mph
14.9km/h 9.3mph
16km/h 9.9mph
Average max. wind speed
16.1km/h 10mph
15.9km/h 9.9mph
17.1km/h 10.6mph
Average wind speed gusts
20.4km/h 12.7mph
20.5km/h 12.7mph
22.9km/h 14.2mph
Average humidity
76%
78%
79%
Average rainfall
25mm 0.98"
25mm 0.98"
37mm 1.46"
Average rainfall days
15.4
17.4
14.8
Average snowfall
0mm 0"
0mm 0"
0mm 0"
Average snowfall days
0
0
0
Average sea temperature
9.3°C 48.7°F
11.4°C 52.5°F
11.3°C 52.3°F
Average daylight
20h 5min
19h 4min
16h 2min
Average sunshine
4h 1min
6h 5min
7h 2min
Average sunshine days
10.1
9.2
12.8
Average UV index
3
4
3
Average cloud cover
64%
63%
60%
Average visibility
10km 6.2mi
9km 5.6mi
9km 5.6mi

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%

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 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).
The 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).
The 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: 19h and 4min

The month with the longest days is June (Average daylight: 20h and 54min).
The month with the shortest days is December (Average daylight: 4h and 24min).

  • Average sunshine in July: 6h and 5min

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 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).
The 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

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 July
Reykjavík, Iceland

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

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