Reykjavík weather in June
In June, Reykjavík has daytime highs averaging 13 °C, nights around 6.8 °C, with 14 wet days, and a sea temperature of 9.6 °C. Figures are 1991–2020 climate normals.
- 12.5°C Average high
- 6.8°C Average low
- 14days Wet days
- 80mm Rainfall
- 9.6°C Sea temperature
- 21h Daylight
Daily temperatures through June
How June develops
Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.
| Days | Avg high | Avg low | Chance of rain |
|---|---|---|---|
| 1–10 June | 11.8 °C | 5.9 °C | 48 % |
| 11–20 June | 12.5 °C | 6.8 °C | 44 % |
| 21–30 June | 13.3 °C | 7.6 °C | 48 % |
- Average highs rise from 11.8 °C early in June to 13.3 °C by the end of it.
What to expect
| Measure | Typical June | Share of the month |
|---|---|---|
| Days above 25 °C | 0 of 30 | 0 % |
| Days above 30 °C | 0 of 30 | 0 % |
| Days below 0 °C | 0.03 of 30 | 0 % |
| Days with more than 1 mm rain | 14 of 30 | 47 % |
Conditions in June
| Measure | Average |
|---|---|
| Mean temperature | 9.8 °C |
| Record high (1991–2020) | 21 °C |
| Record low (1991–2020) | -0.9 °C |
| Relative humidity | 77 % |
| Wind speed | 18 km/h |
| Cloud cover | 76 % |
Where Reykjavík ranks in June
| Ranking | Position | Value |
|---|---|---|
| The coolest places in Europe in June | 4th of 50 | 13 °C |
| The coolest places in the world in June | 16th of 50 | 13 °C |
June compared with the months around it
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| April | 5.6 °C | 104 mm | 73 % |
| May | 9.3 °C | 92 mm | 73 % |
| June | 12.5 °C | 80 mm | 76 % |
| July | 14.3 °C | 86 mm | 77 % |
| August | 13.3 °C | 104 mm | 77 % |
See all twelve months for Reykjavík
- June is the 3rd warmest month here.
- It is the 1st driest month of the year.
- It ranks 7th for least cloud cover.
- Days last about 21 hours from sunrise to sunset.
- It rains on 14 of 30 days — 47 % of the month.
- Nights are about 5.8 °C cooler than the middle of the day.
- The hottest June day on record since 1991 reached 21 °C, 8.1 °C above the usual daytime high.
- Beach score: 2 / 100 — see how this is calculated.
QuestionsJune in Reykjavík, answered
How warm is Reykjavík in June?
Daily highs average 13 °C and nights fall to about 6.8 °C, a spread of 5.8 °C between afternoon and dawn. That makes June the 3rd warmest month of the year here.
Does it rain much in Reykjavík in June?
June averages 80 mm of rain, spread over about 14 of the 30 days — 47 % of the month. Cloud cover averages 76 % of the sky.
Is the sea warm enough to swim in June?
The sea averages 9.6 °C off Reykjavík in June. Most people find water below 20 °C bracing and above 25 °C comfortable for a long swim; this figure is a monthly surface average, so a sheltered bay on a still afternoon can be warmer.
How long are the days in June?
Reykjavík averages 21 hours between sunrise and sunset in June. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.