Belle-Isle-en-Terre Weather in May
Average highs run from 15°C on May 1 to 17°C on May 31, and lows from 9°C to 11°C. Normal precipitation for the month is 58 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
- 16°C
- Average low
- 10°C
- Precipitation
- 58 mm
- Record high
- 29°CMay 27, 2026
- Record low
- 2°CMay 3, 1967
- Daylight
- 14 h 34 min to 15 h 49 min
- Cloud cover
- 66%
- Humidity
- 83%
- Dew point
- 9°C
- Wind
- 18.0 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 | 15°C | 9°C | 25°C 2025 | 3°C 1951 | 43% |
| May 2 | 15°C | 9°C | 21°C 1997 | 3°C 1979 | 43% |
| May 3 | 15°C | 9°C | 23°C 2008 | 2°C 1967 | 43% |
| May 4 | 15°C | 9°C | 24°C 2006 | 3°C 1979 | 43% |
| May 5 | 15°C | 9°C | 22°C 2011 | 3°C 1979 | 42% |
| May 6 | 15°C | 9°C | 22°C 1990 | 5°C 1982 | 41% |
| May 7 | 15°C | 10°C | 23°C 1959 | 3°C 1979 | 40% |
| May 8 | 15°C | 10°C | 25°C 1998 | 4°C 1951 | 38% |
| May 9 | 15°C | 10°C | 26°C 2022 | 3°C 1951 | 37% |
| May 10 | 15°C | 10°C | 21°C 2015 | 5°C 1980 | 39% |
| May 11 | 15°C | 10°C | 23°C 1969 | 5°C 1983 | 41% |
| May 12 | 15°C | 10°C | 23°C 1969 | 4°C 1955 | 41% |
| May 13 | 16°C | 9°C | 28°C 1992 | 4°C 1995 | 41% |
| May 14 | 15°C | 10°C | 25°C 1992 | 6°C 1976 | 41% |
| May 15 | 16°C | 9°C | 24°C 2017 | 5°C 1993 | 40% |
| May 16 | 16°C | 10°C | 25°C 2017 | 5°C 2013 | 38% |
| May 17 | 15°C | 10°C | 27°C 2022 | 6°C 1987 | 39% |
| May 18 | 15°C | 10°C | 21°C 1952 | 4°C 1955 | 37% |
| May 19 | 15°C | 10°C | 20°C 1997 | 5°C 1993 | 37% |
| May 20 | 16°C | 10°C | 22°C 1973 | 5°C 1996 | 36% |
| May 21 | 16°C | 10°C | 25°C 1950 | 6°C 1969 | 36% |
| May 22 | 16°C | 11°C | 23°C 2017 | 6°C 1950 | 38% |
| May 23 | 17°C | 11°C | 23°C 1951 | 6°C 1979 | 38% |
| May 24 | 16°C | 11°C | 23°C 1953 | 5°C 1971 | 37% |
| May 25 | 17°C | 11°C | 26°C 2005 | 6°C 1979 | 36% |
| May 26 | 17°C | 11°C | 27°C 2026 | 6°C 1969 | 35% |
| May 27 | 17°C | 11°C | 29°C 2026 | 6°C 1948 | 34% |
| May 28 | 17°C | 11°C | 27°C 2026 | 6°C 1948 | 35% |
| May 29 | 17°C | 11°C | 23°C 1956 | 6°C 1961 | 35% |
| May 30 | 17°C | 11°C | 26°C 1996 | 6°C 1980 | 36% |
| May 31 | 17°C | 11°C | 25°C 1990 | 6°C 1949 | 37% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+2).
- May 1
- sunrise 6:54 AM, sunset 9:28 PM
- May 31
- sunrise 6:17 AM, sunset 10:06 PM
Other months
Sources
Records: NOAA GHCN-Daily, station FRE00171627, 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.