Björlanda Weather in May
Average highs run from 12°C on May 1 to 16°C on May 31, and lows from 5°C to 10°C. Normal precipitation for the month is 65 mm over about 12 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
- 14°C
- Average low
- 7°C
- Precipitation
- 65 mm
- Record high
- 30°CMay 5, 1977
- Record low
- -4°CMay 3, 1981
- Daylight
- 15 h 37 min to 17 h 36 min
- Cloud cover
- 68%
- Humidity
- 80%
- Dew point
- 7°C
- Wind
- 11.9 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 | 12°C | 5°C | 24°C 1993 | 0°C 1957 | 35% |
| May 2 | 12°C | 6°C | 24°C 1993 | -2°C 1947 | 35% |
| May 3 | 12°C | 6°C | 24°C 1972 | -4°C 1981 | 35% |
| May 4 | 13°C | 6°C | 24°C 1986 | -2°C 1997 | 35% |
| May 5 | 13°C | 6°C | 30°C 1977 | -3°C 1985 | 35% |
| May 6 | 13°C | 6°C | 24°C 2004 | -1°C 1944 | 34% |
| May 7 | 13°C | 6°C | 26°C 1986 | -3°C 1944 | 35% |
| May 8 | 13°C | 6°C | 25°C 2006 | -2°C 1996 | 34% |
| May 9 | 13°C | 6°C | 27°C 1975 | -1°C 1996 | 34% |
| May 10 | 13°C | 6°C | 26°C 1981 | -2°C 1953 | 36% |
| May 11 | 13°C | 7°C | 29°C 1981 | -2°C 1984 | 36% |
| May 12 | 13°C | 7°C | 29°C 1981 | -1°C 1979 | 37% |
| May 13 | 14°C | 7°C | 25°C 1996 | 0°C 2005 | 39% |
| May 14 | 14°C | 7°C | 25°C 1981 | -1°C 1984 | 39% |
| May 15 | 14°C | 7°C | 25°C 1947 | 0°C 1995 | 40% |
| May 16 | 14°C | 8°C | 25°C 1979 | -1°C 1950 | 40% |
| May 17 | 14°C | 8°C | 25°C 1960 | 0°C 2005 | 42% |
| May 18 | 14°C | 8°C | 27°C 1949 | 0°C 1964 | 42% |
| May 19 | 14°C | 8°C | 27°C 1993 | 1°C 1991 | 43% |
| May 20 | 15°C | 8°C | 28°C 1993 | -2°C 1952 | 42% |
| May 21 | 15°C | 8°C | 28°C 1993 | 0°C 1952 | 44% |
| May 22 | 15°C | 8°C | 27°C 1993 | -1°C 2004 | 44% |
| May 23 | 15°C | 9°C | 25°C 2002 | 0°C 1998 | 44% |
| May 24 | 15°C | 9°C | 25°C 1992 | 0°C 1997 | 44% |
| May 25 | 16°C | 9°C | 25°C 1992 | 1°C 1945 | 44% |
| May 26 | 16°C | 9°C | 29°C 1958 | 0°C 1991 | 43% |
| May 27 | 16°C | 9°C | 28°C 1946 | 1°C 2004 | 43% |
| May 28 | 16°C | 9°C | 29°C 1988 | 0°C 1990 | 41% |
| May 29 | 16°C | 10°C | 27°C 1988 | 1°C 1951 | 40% |
| May 30 | 16°C | 10°C | 29°C 1946 | 0°C 1997 | 41% |
| May 31 | 16°C | 10°C | 28°C 1979 | 1°C 1975 | 41% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+2).
- May 1
- sunrise 5:22 AM, sunset 8:59 PM
- May 31
- sunrise 4:23 AM, sunset 9:59 PM
Other months
Sources
Records: NOAA GHCN-Daily, station SW000002512, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine, and temperature and precipitation: 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.