Grindavík weather in July
Temperature, sea and sunshine in July: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in July
Poor
Best time to visit: May – August
What is the weather like in Grindavík in July?
In July, Grindavík is cool: daytime highs average 13 °C, and nights cool down to about 9 °C. The sea averages 11.3 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 79 mm in total. All in all, July is not an ideal month for a holiday in Grindavík.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 19 h 41 min03:45 – 23:26
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 20 km/haverage daily peakAll months
- Cloud cover
- 77 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+0Atlantic/Reykjavik
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %48 %
- Few rainy daysweight 20 %29 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in July
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Grindavík in July: quick answers
Is Grindavík hot in July?
No. In July, Grindavík is cool: daytime highs average 13 °C and nights drop to about 9 °C.
Can you swim in Grindavík in July?
Only if you don't mind cold water: in July the sea averages just 11.3 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Grindavík in July?
Rain is frequent, with about 14 rainy days and 79 mm in total.
Grindavík month by month
The whole year in GrindavíkAll destinations: IcelandWhere to go in JulySea temperature in July
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences