San Bernardo Weather in May
Average highs run from 22°C on May 1 to 17°C on May 31, and lows from 9°C to 5°C. Normal precipitation for the month is 50 mm over about 6 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
- 20°C
- Average low
- 8°C
- Precipitation
- 50 mm
- Record high
- 30°CMay 26, 2020
- Record low
- -6°CMay 30, 1996
- Daylight
- 10 h 45 min to 10 h 05 min
- Cloud cover
- 68%
- Humidity
- 42%
- Dew point
- -3°C
- Wind
- 9.0 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 | 22°C | 9°C | 29°C 2017 | 0°C 1976 | 11% |
| May 2 | 22°C | 9°C | 26°C 2020 | -1°C 2001 | 12% |
| May 3 | 22°C | 9°C | 29°C 2003 | -1°C 1988 | 12% |
| May 4 | 22°C | 9°C | 29°C 1997 | -2°C 1988 | 12% |
| May 5 | 22°C | 9°C | 28°C 1986 | 0°C 1991 | 12% |
| May 6 | 22°C | 9°C | 27°C 2013 | -1°C 1988 | 12% |
| May 7 | 22°C | 9°C | 29°C 1997 | -2°C 1988 | 13% |
| May 8 | 22°C | 9°C | 29°C 2020 | -1°C 1988 | 14% |
| May 9 | 21°C | 9°C | 28°C 2014 | 1°C 1984 | 15% |
| May 10 | 21°C | 8°C | 29°C 2010 | -2°C 1976 | 15% |
| May 11 | 21°C | 8°C | 28°C 2010 | -2°C 1976 | 16% |
| May 12 | 21°C | 8°C | 25°C 2018 | -2°C 1984 | 17% |
| May 13 | 21°C | 8°C | 28°C 2023 | -4°C 1976 | 17% |
| May 14 | 20°C | 8°C | 26°C 1994 | -2°C 1976 | 18% |
| May 15 | 20°C | 8°C | 28°C 2019 | -1°C 2003 | 19% |
| May 16 | 20°C | 7°C | 25°C 2019 | -1°C 2024 | 20% |
| May 17 | 20°C | 7°C | 27°C 1998 | -4°C 1976 | 20% |
| May 18 | 19°C | 7°C | 28°C 2020 | -2°C 1990 | 20% |
| May 19 | 19°C | 7°C | 28°C 1995 | -5°C 1976 | 22% |
| May 20 | 19°C | 7°C | 26°C 1977 | -4°C 1976 | 23% |
| May 21 | 19°C | 7°C | 26°C 1977 | -3°C 1990 | 24% |
| May 22 | 18°C | 7°C | 26°C 2009 | -2°C 2007 | 24% |
| May 23 | 18°C | 6°C | 27°C 2009 | -2°C 2007 | 26% |
| May 24 | 18°C | 6°C | 25°C 1979 | -3°C 2007 | 25% |
| May 25 | 18°C | 6°C | 26°C 2018 | -2°C 1993 | 25% |
| May 26 | 18°C | 6°C | 30°C 2020 | -3°C 1993 | 24% |
| May 27 | 18°C | 6°C | 23°C 2011 | -1°C 2000 | 24% |
| May 28 | 18°C | 6°C | 25°C 2014 | -1°C 2007 | 24% |
| May 29 | 17°C | 6°C | 23°C 2003 | -3°C 1990 | 25% |
| May 30 | 17°C | 6°C | 22°C 2011 | -6°C 1996 | 24% |
| May 31 | 17°C | 5°C | 25°C 1999 | -5°C 1990 | 24% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-4).
- May 1
- sunrise 7:17 AM, sunset 6:02 PM
- May 31
- sunrise 7:38 AM, sunset 5:43 PM
Other months
Sources
Records: NOAA GHCN-Daily, station CIM00085574, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.