Roseau Weather in May
Average highs run from 27°C on May 1 to 28°C on May 31, and lows from 26°C to 27°C. Normal precipitation for the month is 99 mm over about 19 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
- 28°C
- Average low
- 26°C
- Precipitation
- 99 mm
- Reanalysis high
- 30°CMay 27, 2005
- Reanalysis low
- 24°CMay 31, 2019
- Daylight
- 12 h 41 min to 12 h 58 min
- Cloud cover
- 55%
- Humidity
- 78%
- Dew point
- 23°C
- Wind
- 25.2 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 | 27°C | 26°C | 28°C 2002 | 25°C 2000 | 60% |
| May 2 | 28°C | 26°C | 28°C 2010 | 24°C 1997 | 62% |
| May 3 | 28°C | 26°C | 28°C 2006 | 25°C 1996 | 64% |
| May 4 | 28°C | 26°C | 29°C 2005 | 25°C 1996 | 66% |
| May 5 | 28°C | 26°C | 29°C 2005 | 25°C 2008 | 68% |
| May 6 | 28°C | 26°C | 29°C 2010 | 24°C 2012 | 68% |
| May 7 | 28°C | 26°C | 28°C 2005 | 24°C 2012 | 68% |
| May 8 | 28°C | 26°C | 29°C 2005 | 25°C 2000 | 67% |
| May 9 | 28°C | 26°C | 28°C 2010 | 25°C 2000 | 66% |
| May 10 | 28°C | 26°C | 29°C 1998 | 25°C 2000 | 66% |
| May 11 | 28°C | 26°C | 29°C 1999 | 25°C 2000 | 65% |
| May 12 | 28°C | 26°C | 29°C 2007 | 25°C 2000 | 65% |
| May 13 | 28°C | 26°C | 29°C 2010 | 25°C 1994 | 64% |
| May 14 | 28°C | 26°C | 29°C 1998 | 25°C 1996 | 63% |
| May 15 | 28°C | 26°C | 29°C 1998 | 25°C 2018 | 62% |
| May 16 | 28°C | 26°C | 29°C 2017 | 25°C 2000 | 60% |
| May 17 | 28°C | 26°C | 29°C 2006 | 25°C 2008 | 58% |
| May 18 | 28°C | 26°C | 29°C 2006 | 25°C 1996 | 55% |
| May 19 | 28°C | 26°C | 29°C 2006 | 25°C 1992 | 54% |
| May 20 | 28°C | 26°C | 29°C 2005 | 26°C 1996 | 53% |
| May 21 | 28°C | 26°C | 29°C 2005 | 25°C 1996 | 53% |
| May 22 | 28°C | 26°C | 29°C 2005 | 26°C 2008 | 54% |
| May 23 | 28°C | 26°C | 30°C 2005 | 26°C 2000 | 56% |
| May 24 | 28°C | 26°C | 29°C 2005 | 26°C 2000 | 57% |
| May 25 | 28°C | 26°C | 30°C 2005 | 26°C 2002 | 57% |
| May 26 | 28°C | 26°C | 30°C 2005 | 26°C 2002 | 57% |
| May 27 | 28°C | 27°C | 30°C 2005 | 26°C 2002 | 58% |
| May 28 | 28°C | 27°C | 29°C 2005 | 26°C 1996 | 60% |
| May 29 | 28°C | 27°C | 29°C 2005 | 26°C 1991 | 62% |
| May 30 | 28°C | 27°C | 29°C 2005 | 25°C 1991 | 63% |
| May 31 | 28°C | 27°C | 29°C 2007 | 24°C 2019 | 65% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (AST).
- May 1
- sunrise 5:42 AM, sunset 6:23 PM
- May 31
- sunrise 5:34 AM, sunset 6:32 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.