Weather in Reykjavik in July 2025
Average weather
Average temperature in Reykjavik in July
The expected average maximum temperature in July is +15°C with a maximum of +19°C and a minimum of +5°C.
The average maximum temperature goes up 21% by the end of the month, compared with the beginning of the month, from +12°C to +15°C.
Is Reykjavik warm or cold in July?
Reykjavik is typically mild in July.
Maximum temperatures go up compared to the previous month from +13°C to +14°C. The minimum temperature also goes up from +8°C to +9°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
July is one of the warmest months in Reykjavik, here is the comparison with other months:
Water temperature in Reykjavik in July
Water in Reykjavik in July is Cold. It varies from +10°C to +13°C, with an average of +11°C. This is almost similar to the air temperature, which averages +14°C.
The water temperature in July is one of the warmest of the entire year:
Can you swim in Reykjavik in July?
Climate in Reykjavik in July
| June | July | August | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +13°C | +14°C | +14°C | ||||
| Min. temperature | ||||||
| 0°C | +3°C | +2°C | ||||
| Max. temperature | ||||||
| +21°C | +25°C | +24°C | ||||
| Rainfall | ||||||
| 73 mm | 70 mm | 87 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Avg. water temperature | ||||||
| +9°C | +11°C | +11°C | ||||
| Humidity | ||||||
| 76% | 78% | 79% | ||||
| Air pressure | ||||||
| 1011 HPa | 1008 HPa | 1007 HPa | ||||
| Sunny days | ||||||
| 2 | 2 | 3 | ||||
| Cloudy days | ||||||
| 9 | 9 | 8 | ||||
| Rainy days | ||||||
| 19 | 20 | 20 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
July weather is still as ok as in June. It’s getting warmer as July arrives. The average maximum temperature goes up from +13°C to +14°C during the day. As July arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 73 mm to 70 mm. Humidity rises from 76% to 78%. The average wind speed doesn’t change much during July, staying around 3 m/s. The amount of sunny days stay about the same, averaging 2 sunny days during the month.
August brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Reykjavik is gradually increasing during July, going from 1 m/s to 2 m/s over the course of the month.
Rain
How was the weather last July in Reykjavik?
Climate Change over Years
The climate in Reykjavik in July has not changed much over the last 43 years.
The average temperature was the lowest in 1979 (+5°C) and the highest in 2003 (+9°C). The driest year was 2019 with only 289 mm of rainfall, and the wettest year was 2003 with 1379 mm.
FAQ
Is July a good time to visit Reykjavik?
Can you sunbathe in Reykjavik in July?
Can you swim in Reykjavik in July?
Is Reykjavik rainy in July?
Is it sunny in Reykjavik in July?
Monthly weather in Reykjavik
Source of the data
For this page, we’ve looked at the typical weather in Reykjavik, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.