Upplands Väsby Weather in May
Average highs run from 14°C on May 1 to 19°C on May 31, and lows from 3°C to 8°C. Normal precipitation for the month is 50 mm over about 9 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
- 16°C
- Average low
- 6°C
- Precipitation
- 50 mm
- Record high
- 29°CMay 31, 1992
- Record low
- -5°CMay 10, 2017
- Daylight
- 15 h 55 min to 18 h 05 min
- Cloud cover
- 61%
- Humidity
- 77%
- Dew point
- 6°C
- Wind
- 9.4 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 | 14°C | 3°C | 25°C 2026 | -5°C 1995 | 30% |
| May 2 | 14°C | 4°C | 25°C 1990 | -3°C 1976 | 31% |
| May 3 | 14°C | 4°C | 27°C 1990 | -3°C 1978 | 31% |
| May 4 | 13°C | 4°C | 23°C 1990 | -3°C 1981 | 30% |
| May 5 | 14°C | 3°C | 27°C 1990 | -4°C 2023 | 30% |
| May 6 | 15°C | 4°C | 27°C 1977 | -4°C 2023 | 29% |
| May 7 | 16°C | 4°C | 24°C 2006 | -3°C 1957 | 29% |
| May 8 | 16°C | 5°C | 25°C 2018 | -4°C 1953 | 30% |
| May 9 | 16°C | 5°C | 26°C 2016 | -4°C 1952 | 30% |
| May 10 | 16°C | 5°C | 26°C 1981 | -5°C 2017 | 30% |
| May 11 | 16°C | 5°C | 25°C 2008 | -5°C 2017 | 29% |
| May 12 | 16°C | 5°C | 24°C 2018 | -3°C 1999 | 29% |
| May 13 | 16°C | 5°C | 24°C 1996 | -2°C 2017 | 28% |
| May 14 | 16°C | 5°C | 26°C 2018 | -3°C 1954 | 27% |
| May 15 | 16°C | 6°C | 27°C 2018 | -3°C 1954 | 27% |
| May 16 | 16°C | 5°C | 28°C 2018 | -2°C 1972 | 29% |
| May 17 | 16°C | 5°C | 24°C 2000 | -1°C 1996 | 29% |
| May 18 | 17°C | 6°C | 27°C 1974 | -1°C 2020 | 29% |
| May 19 | 17°C | 7°C | 27°C 1992 | -1°C 1959 | 31% |
| May 20 | 18°C | 7°C | 26°C 1993 | -1°C 1990 | 30% |
| May 21 | 18°C | 7°C | 26°C 1993 | -1°C 1952 | 32% |
| May 22 | 18°C | 7°C | 26°C 2019 | -2°C 1980 | 32% |
| May 23 | 18°C | 7°C | 26°C 2014 | -1°C 1965 | 32% |
| May 24 | 19°C | 7°C | 27°C 2014 | -2°C 1971 | 31% |
| May 25 | 17°C | 7°C | 26°C 2024 | -1°C 1951 | 31% |
| May 26 | 18°C | 7°C | 27°C 1958 | 0°C 1991 | 31% |
| May 27 | 18°C | 8°C | 27°C 2024 | 0°C 1957 | 31% |
| May 28 | 18°C | 8°C | 28°C 2017 | 2°C 1987 | 31% |
| May 29 | 18°C | 8°C | 28°C 2018 | 0°C 1990 | 32% |
| May 30 | 18°C | 8°C | 27°C 1971 | -1°C 1977 | 32% |
| May 31 | 19°C | 8°C | 29°C 1992 | 0°C 1997 | 32% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+2).
- May 1
- sunrise 4:49 AM, sunset 8:44 PM
- May 31
- sunrise 3:44 AM, sunset 9:49 PM
Other months
Sources
Records: NOAA GHCN-Daily, station SWE00138894, 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.