Cozumel Weather in May
Average highs run from 29°C on May 1 to 29°C on May 31, and lows from 26°C to 27°C. Normal precipitation for the month is 93 mm over about 12 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
- 29°C
- Average low
- 26°C
- Precipitation
- 93 mm
- Reanalysis high
- 31°CMay 22, 1995
- Reanalysis low
- 22°CMay 5, 2013
- Daylight
- 12 h 54 min to 13 h 17 min
- Cloud cover
- 45%
- Humidity
- 77%
- Dew point
- 23°C
- Wind
- 14.4 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 | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| May 1 | 29°C | 26°C | 31°C 1994 | 23°C 1992 | 23% |
| May 2 | 29°C | 26°C | 31°C 1995 | 24°C 1992 | 24% |
| May 3 | 29°C | 26°C | 31°C 2013 | 24°C 2013 | 25% |
| May 4 | 29°C | 26°C | 30°C 2016 | 23°C 2013 | 25% |
| May 5 | 29°C | 26°C | 30°C 2020 | 22°C 2013 | 24% |
| May 6 | 29°C | 26°C | 30°C 2020 | 23°C 2017 | 24% |
| May 7 | 29°C | 26°C | 30°C 1994 | 23°C 1992 | 25% |
| May 8 | 29°C | 26°C | 30°C 1994 | 22°C 1992 | 26% |
| May 9 | 29°C | 26°C | 30°C 1994 | 24°C 1992 | 27% |
| May 10 | 29°C | 26°C | 30°C 1994 | 24°C 2007 | 29% |
| May 11 | 29°C | 26°C | 31°C 1998 | 24°C 2007 | 32% |
| May 12 | 29°C | 26°C | 30°C 1994 | 25°C 1993 | 33% |
| May 13 | 29°C | 26°C | 30°C 1994 | 25°C 2007 | 35% |
| May 14 | 29°C | 26°C | 30°C 2016 | 25°C 2007 | 37% |
| May 15 | 29°C | 26°C | 30°C 2011 | 25°C 2014 | 39% |
| May 16 | 29°C | 26°C | 31°C 2006 | 24°C 2014 | 41% |
| May 17 | 29°C | 26°C | 30°C 2016 | 24°C 2006 | 43% |
| May 18 | 29°C | 26°C | 30°C 1994 | 23°C 2006 | 44% |
| May 19 | 29°C | 26°C | 31°C 1994 | 24°C 2006 | 46% |
| May 20 | 29°C | 26°C | 31°C 1995 | 24°C 2009 | 48% |
| May 21 | 29°C | 26°C | 31°C 1991 | 24°C 2009 | 50% |
| May 22 | 29°C | 26°C | 31°C 1995 | 25°C 1994 | 50% |
| May 23 | 29°C | 27°C | 30°C 2015 | 25°C 1992 | 52% |
| May 24 | 29°C | 27°C | 30°C 2016 | 24°C 1992 | 54% |
| May 25 | 29°C | 27°C | 31°C 2016 | 25°C 1992 | 56% |
| May 26 | 29°C | 27°C | 30°C 2016 | 25°C 2018 | 57% |
| May 27 | 29°C | 27°C | 30°C 1994 | 25°C 2018 | 58% |
| May 28 | 29°C | 27°C | 30°C 1995 | 25°C 2010 | 58% |
| May 29 | 29°C | 27°C | 31°C 1999 | 25°C 1993 | 60% |
| May 30 | 29°C | 27°C | 31°C 2016 | 26°C 2012 | 61% |
| May 31 | 29°C | 27°C | 30°C 2016 | 25°C 1993 | 61% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EST).
- May 1
- sunrise 6:18 AM, sunset 7:12 PM
- May 31
- sunrise 6:07 AM, sunset 7:24 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.