San Pedro Weather in May
Average highs run from 31°C on May 1 to 31°C on May 31, and lows from 26°C to 27°C. Normal precipitation for the month is 109 mm over about 9 wet days.
May day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
May at a glance
- Average high
- 31°C
- Average low
- 26°C
- Precipitation
- 109 mm
- Reanalysis high
- 36°CMay 19, 1994
- Reanalysis low
- 23°CMay 6, 2017
- Daylight
- 12 h 48 min to 13 h 08 min
- Cloud cover
- 47%
- Humidity
- 75%
- Dew point
- 23°C
- Wind
- 11.5 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 | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| May 1 | 31°C | 26°C | 34°C 2005 | 23°C 2015 | 19% |
| May 2 | 31°C | 26°C | 34°C 2013 | 24°C 2015 | 20% |
| May 3 | 31°C | 26°C | 34°C 2013 | 24°C 2015 | 20% |
| May 4 | 31°C | 26°C | 34°C 2016 | 24°C 2013 | 20% |
| May 5 | 31°C | 26°C | 32°C 2017 | 24°C 1992 | 20% |
| May 6 | 31°C | 26°C | 32°C 1998 | 23°C 2017 | 21% |
| May 7 | 31°C | 26°C | 32°C 1994 | 24°C 1992 | 22% |
| May 8 | 31°C | 26°C | 32°C 1994 | 23°C 1992 | 24% |
| May 9 | 31°C | 26°C | 32°C 1998 | 24°C 2001 | 26% |
| May 10 | 31°C | 26°C | 33°C 2020 | 25°C 2018 | 27% |
| May 11 | 31°C | 26°C | 35°C 1998 | 25°C 1993 | 29% |
| May 12 | 31°C | 26°C | 34°C 1998 | 25°C 1993 | 31% |
| May 13 | 31°C | 26°C | 35°C 2007 | 25°C 1993 | 32% |
| May 14 | 31°C | 26°C | 32°C 2020 | 25°C 2001 | 33% |
| May 15 | 31°C | 26°C | 33°C 2020 | 24°C 2001 | 35% |
| May 16 | 31°C | 26°C | 32°C 2020 | 24°C 2000 | 36% |
| May 17 | 31°C | 26°C | 33°C 2011 | 24°C 2014 | 38% |
| May 18 | 31°C | 26°C | 32°C 1995 | 24°C 2006 | 40% |
| May 19 | 31°C | 26°C | 36°C 1994 | 25°C 2006 | 41% |
| May 20 | 31°C | 26°C | 34°C 1994 | 25°C 1998 | 42% |
| May 21 | 31°C | 26°C | 35°C 1996 | 24°C 2009 | 42% |
| May 22 | 31°C | 26°C | 33°C 1996 | 25°C 2009 | 43% |
| May 23 | 31°C | 26°C | 33°C 2009 | 25°C 2004 | 43% |
| May 24 | 31°C | 26°C | 33°C 2020 | 25°C 1992 | 44% |
| May 25 | 31°C | 26°C | 34°C 2020 | 25°C 1998 | 45% |
| May 26 | 31°C | 27°C | 33°C 2020 | 25°C 1992 | 46% |
| May 27 | 31°C | 27°C | 33°C 2016 | 25°C 1992 | 47% |
| May 28 | 31°C | 27°C | 33°C 2016 | 25°C 2013 | 48% |
| May 29 | 31°C | 27°C | 33°C 2018 | 25°C 2010 | 49% |
| May 30 | 31°C | 27°C | 33°C 2016 | 25°C 2010 | 50% |
| May 31 | 31°C | 27°C | 33°C 1993 | 25°C 1994 | 50% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CST).
- May 1
- sunrise 5:25 AM, sunset 6:13 PM
- May 31
- sunrise 5:16 AM, sunset 6:24 PM
Other months
Sources
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.