Kópavogur Weather in May
Average highs run from 8°C on May 1 to 12°C on May 31, and lows from 2°C to 6°C. Normal precipitation for the month is 68 mm over about 16 wet days.
May day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
May at a glance
- Average high
- 10°C
- Average low
- 4°C
- Precipitation
- 68 mm
- Record high
- 21°CMay 14, 1960
- Record low
- -8°CMay 5, 1982
- Daylight
- 16 h 52 min to 20 h 01 min
- Cloud cover
- 76%
- Humidity
- 83%
- Dew point
- 3°C
- Wind
- 16.6 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| May 1 | 8°C | 2°C | 14°C 2019 | -6°C 1967 | 54% |
| May 2 | 8°C | 2°C | 15°C 2011 | -6°C 1979 | 53% |
| May 3 | 9°C | 3°C | 14°C 2017 | -5°C 1982 | 52% |
| May 4 | 9°C | 4°C | 16°C 2017 | -6°C 1968 | 52% |
| May 5 | 9°C | 3°C | 15°C 2017 | -8°C 1982 | 51% |
| May 6 | 9°C | 3°C | 14°C 2017 | -4°C 1982 | 51% |
| May 7 | 9°C | 3°C | 18°C 2006 | -6°C 1979 | 52% |
| May 8 | 9°C | 3°C | 16°C 2011 | -6°C 2015 | 51% |
| May 9 | 9°C | 3°C | 19°C 2006 | -3°C 1981 | 51% |
| May 10 | 10°C | 3°C | 17°C 2006 | -5°C 1992 | 50% |
| May 11 | 10°C | 4°C | 15°C 1970 | -5°C 1975 | 48% |
| May 12 | 10°C | 4°C | 18°C 1960 | -2°C 2015 | 47% |
| May 13 | 10°C | 3°C | 20°C 1960 | -3°C 1958 | 47% |
| May 14 | 10°C | 4°C | 21°C 1960 | -3°C 1955 | 47% |
| May 15 | 10°C | 3°C | 19°C 1988 | -2°C 1993 | 46% |
| May 16 | 10°C | 4°C | 20°C 2025 | -4°C 1955 | 47% |
| May 17 | 10°C | 4°C | 19°C 2025 | -3°C 1955 | 49% |
| May 18 | 10°C | 4°C | 20°C 2025 | -4°C 1979 | 48% |
| May 19 | 10°C | 4°C | 18°C 2025 | -4°C 1979 | 49% |
| May 20 | 10°C | 3°C | 18°C 2025 | -1°C 1967 | 50% |
| May 21 | 10°C | 4°C | 17°C 2017 | -1°C 1979 | 51% |
| May 22 | 11°C | 4°C | 17°C 2020 | -3°C 2006 | 50% |
| May 23 | 11°C | 5°C | 17°C 1975 | 0°C 1958 | 51% |
| May 24 | 11°C | 5°C | 17°C 2020 | -2°C 1949 | 50% |
| May 25 | 11°C | 5°C | 18°C 1987 | -1°C 2006 | 52% |
| May 26 | 11°C | 5°C | 16°C 1981 | -2°C 1949 | 52% |
| May 27 | 11°C | 6°C | 16°C 1969 | 0°C 2007 | 53% |
| May 28 | 12°C | 6°C | 17°C 2004 | 0°C 1980 | 52% |
| May 29 | 12°C | 6°C | 16°C 2004 | 0°C 2019 | 52% |
| May 30 | 12°C | 6°C | 17°C 2004 | -1°C 1962 | 51% |
| May 31 | 12°C | 6°C | 18°C 2007 | -2°C 2000 | 52% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT).
- May 1
- sunrise 5:00 AM, sunset 9:52 PM
- May 31
- sunrise 3:26 AM, sunset 11:27 PM
Other months
Sources
Records: NOAA GHCN-Daily, station IC000004030, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.