San Juan Bautista Weather in May
Average highs run from 28°C on May 1 to 28°C on May 31, and lows from 26°C to 26°C. Normal precipitation for the month is 59 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
- 28°C
- Average low
- 26°C
- Precipitation
- 59 mm
- Record high
- 39°CMay 3, 2008
- Record low
- 23°CMay 4, 1996
- Daylight
- 12 h 32 min to 12 h 43 min
- Cloud cover
- 51%
- Humidity
- 84%
- Dew point
- 24°C
- Wind
- 22.3 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 | 28°C | 26°C | 34°C 2003 | 23°C 2000 | 26% |
| May 2 | 28°C | 26°C | 34°C 2006 | 23°C 1976 | 27% |
| May 3 | 28°C | 26°C | 39°C 2008 | 23°C 1981 | 28% |
| May 4 | 28°C | 26°C | 35°C 2005 | 23°C 1996 | 29% |
| May 5 | 28°C | 26°C | 34°C 1988 | 23°C 1996 | 30% |
| May 6 | 28°C | 26°C | 35°C 1988 | 23°C 1976 | 32% |
| May 7 | 28°C | 26°C | 34°C 1987 | 24°C 2000 | 34% |
| May 8 | 28°C | 26°C | 35°C 2001 | 24°C 2000 | 35% |
| May 9 | 28°C | 26°C | 35°C 2001 | 23°C 1984 | 36% |
| May 10 | 28°C | 26°C | 34°C 2001 | 24°C 1992 | 36% |
| May 11 | 28°C | 26°C | 34°C 2005 | 24°C 1976 | 36% |
| May 12 | 28°C | 26°C | 35°C 1998 | 24°C 1977 | 37% |
| May 13 | 28°C | 26°C | 34°C 1989 | 23°C 1980 | 38% |
| May 14 | 28°C | 26°C | 34°C 2010 | 24°C 2003 | 39% |
| May 15 | 28°C | 26°C | 33°C 2003 | 24°C 1976 | 40% |
| May 16 | 28°C | 26°C | 34°C 1995 | 24°C 1977 | 42% |
| May 17 | 28°C | 26°C | 34°C 1988 | 24°C 1976 | 42% |
| May 18 | 28°C | 26°C | 34°C 1999 | 25°C 1997 | 44% |
| May 19 | 28°C | 26°C | 35°C 1985 | 24°C 1977 | 44% |
| May 20 | 28°C | 26°C | 34°C 1993 | 23°C 1998 | 45% |
| May 21 | 28°C | 26°C | 34°C 1991 | 25°C 2001 | 45% |
| May 22 | 28°C | 26°C | 36°C 2005 | 24°C 1999 | 45% |
| May 23 | 28°C | 26°C | 34°C 1998 | 24°C 2001 | 45% |
| May 24 | 28°C | 26°C | 36°C 2005 | 24°C 1977 | 47% |
| May 25 | 28°C | 26°C | 34°C 1992 | 23°C 1997 | 49% |
| May 26 | 28°C | 26°C | 35°C 1999 | 24°C 1976 | 51% |
| May 27 | 28°C | 26°C | 35°C 2007 | 23°C 1981 | 53% |
| May 28 | 28°C | 26°C | 34°C 2007 | 24°C 1998 | 54% |
| May 29 | 28°C | 26°C | 35°C 2005 | 23°C 2001 | 56% |
| May 30 | 28°C | 26°C | 34°C 1987 | 25°C 1999 | 58% |
| May 31 | 28°C | 26°C | 34°C 2007 | 24°C 1994 | 60% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-4).
- May 1
- sunrise 5:57 AM, sunset 6:29 PM
- May 31
- sunrise 5:52 AM, sunset 6:35 PM
Other months
Sources
Records: NOAA GHCN-Daily, station VEM00080421, 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.