Sun, sea & sand

Grindavík weather in April

Temperature, sea and sunshine in April: long-term averages from 30 years of weather data, not a forecast.

11

Holiday weather in April

Poor

Best time to visit: May – August

What is the weather like in Grindavík in April?

In April, Grindavík is cold: daytime highs average 6 °C, and nights cool down to about 2 °C. The sea averages 6.4 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. It rains often – on about 16 days, adding up to 98 mm. Snow falls on about 3 days. All in all, April is not an ideal month for a holiday in Grindavík.

April compared

How the weather changes from March to May. Tap a month to open it.

MarchMarAprilAprMayMay
Score31116
Day4°6°9°
Night0°2°5°
Sea6°6°8°
Sun4 h6 h7 h
Rain days171616

More details for April

Daylight
14 h 55 min06:02 – 20:58
UV index
3 · moderateclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
26 km/haverage daily peakAll months
Cloud cover
73 %on averageAll months
Hot days
0 days30 °C or more
Snow days
3 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 %42 %
  • Few rainy daysweight 20 %11 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in April

  • Warm jacket
  • Hat, scarf & gloves
  • Rain jacket or umbrella

Grindavík in April: quick answers

Is Grindavík hot in April?

No. In April, Grindavík is cold: daytime highs average 6 °C and nights drop to about 2 °C.

Can you swim in Grindavík in April?

Only if you don't mind cold water: in April the sea averages just 6.4 °C. Comfortable swimming temperatures are not reached at any time of year.

Does it rain much in Grindavík in April?

It rains often – on about 16 days, adding up to 98 mm.

Grindavík month by month

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