Ratchathewi Weather in May
Average highs run from 36°C on May 1 to 33°C on May 31, and lows from 26°C to 26°C. Normal precipitation for the month is 164 mm over about 22 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
- 34°C
- Average low
- 26°C
- Precipitation
- 164 mm
- Reanalysis high
- 42°CMay 6, 2016
- Reanalysis low
- 23°CMay 15, 2006
- Daylight
- 12 h 38 min to 12 h 53 min
- Cloud cover
- 80%
- Humidity
- 76%
- Dew point
- 24°C
- Wind
- 10.1 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 | 36°C | 26°C | 42°C 1998 | 25°C 2000 | 57% |
| May 2 | 35°C | 26°C | 42°C 1998 | 24°C 1999 | 59% |
| May 3 | 35°C | 26°C | 41°C 1998 | 25°C 2007 | 60% |
| May 4 | 35°C | 26°C | 41°C 1998 | 24°C 2009 | 61% |
| May 5 | 35°C | 26°C | 42°C 1997 | 24°C 2008 | 64% |
| May 6 | 35°C | 26°C | 42°C 2016 | 24°C 2008 | 65% |
| May 7 | 35°C | 26°C | 41°C 1997 | 24°C 2008 | 66% |
| May 8 | 35°C | 26°C | 42°C 1992 | 25°C 2000 | 66% |
| May 9 | 35°C | 26°C | 41°C 1992 | 25°C 2012 | 67% |
| May 10 | 34°C | 26°C | 42°C 2016 | 25°C 1996 | 69% |
| May 11 | 34°C | 26°C | 42°C 2016 | 24°C 2011 | 71% |
| May 12 | 34°C | 26°C | 39°C 1997 | 24°C 2020 | 72% |
| May 13 | 34°C | 26°C | 39°C 1997 | 24°C 1996 | 73% |
| May 14 | 34°C | 26°C | 39°C 2013 | 24°C 2008 | 74% |
| May 15 | 34°C | 26°C | 40°C 2013 | 23°C 2006 | 75% |
| May 16 | 34°C | 26°C | 41°C 2013 | 25°C 2006 | 75% |
| May 17 | 34°C | 26°C | 38°C 2015 | 24°C 2006 | 76% |
| May 18 | 34°C | 26°C | 38°C 2019 | 24°C 2008 | 76% |
| May 19 | 33°C | 26°C | 38°C 2010 | 24°C 2006 | 77% |
| May 20 | 33°C | 26°C | 38°C 2014 | 24°C 2011 | 77% |
| May 21 | 33°C | 26°C | 39°C 2014 | 24°C 2011 | 77% |
| May 22 | 33°C | 26°C | 39°C 2014 | 24°C 2011 | 77% |
| May 23 | 33°C | 26°C | 37°C 1998 | 24°C 2004 | 79% |
| May 24 | 33°C | 26°C | 37°C 2014 | 24°C 2004 | 80% |
| May 25 | 33°C | 26°C | 38°C 2014 | 24°C 2007 | 80% |
| May 26 | 33°C | 26°C | 36°C 2016 | 24°C 1997 | 80% |
| May 27 | 33°C | 26°C | 37°C 2016 | 24°C 2002 | 81% |
| May 28 | 33°C | 26°C | 38°C 2020 | 24°C 1996 | 82% |
| May 29 | 33°C | 26°C | 38°C 2015 | 24°C 2011 | 82% |
| May 30 | 33°C | 26°C | 38°C 1992 | 24°C 1999 | 83% |
| May 31 | 33°C | 26°C | 39°C 2015 | 24°C 2008 | 84% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+7).
- May 1
- sunrise 5:56 AM, sunset 6:34 PM
- May 31
- sunrise 5:49 AM, sunset 6:42 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.