Phayao Weather in May
Average highs run from 34°C on May 1 to 31°C on May 31, and lows from 23°C to 23°C. Normal precipitation for the month is 180 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
- 32°C
- Average low
- 23°C
- Precipitation
- 180 mm
- Reanalysis high
- 42°CMay 11, 2016
- Reanalysis low
- 18°CMay 16, 2006
- Daylight
- 12 h 50 min to 13 h 12 min
- Cloud cover
- 76%
- Humidity
- 73%
- Dew point
- 21°C
- Wind
- 8.3 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 | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| May 1 | 34°C | 23°C | 40°C 2019 | 21°C 1996 | 61% |
| May 2 | 34°C | 23°C | 40°C 2019 | 20°C 2003 | 63% |
| May 3 | 34°C | 23°C | 40°C 2019 | 20°C 2003 | 64% |
| May 4 | 33°C | 23°C | 39°C 2010 | 21°C 2007 | 64% |
| May 5 | 33°C | 23°C | 39°C 1992 | 21°C 2007 | 65% |
| May 6 | 33°C | 23°C | 40°C 1992 | 20°C 2007 | 65% |
| May 7 | 33°C | 23°C | 40°C 2016 | 21°C 2007 | 65% |
| May 8 | 33°C | 23°C | 41°C 2016 | 21°C 2007 | 66% |
| May 9 | 33°C | 23°C | 41°C 2016 | 21°C 1999 | 67% |
| May 10 | 33°C | 23°C | 42°C 2016 | 20°C 1999 | 68% |
| May 11 | 33°C | 23°C | 42°C 2016 | 19°C 1999 | 69% |
| May 12 | 33°C | 23°C | 40°C 2016 | 19°C 1999 | 71% |
| May 13 | 32°C | 23°C | 40°C 2016 | 20°C 1999 | 72% |
| May 14 | 32°C | 23°C | 39°C 2015 | 19°C 2006 | 72% |
| May 15 | 32°C | 23°C | 38°C 2005 | 18°C 2006 | 70% |
| May 16 | 32°C | 23°C | 38°C 2020 | 18°C 2006 | 72% |
| May 17 | 32°C | 23°C | 37°C 2020 | 19°C 2006 | 72% |
| May 18 | 32°C | 23°C | 39°C 2019 | 20°C 2006 | 72% |
| May 19 | 32°C | 23°C | 39°C 2019 | 20°C 2006 | 72% |
| May 20 | 32°C | 23°C | 38°C 2019 | 19°C 2000 | 72% |
| May 21 | 32°C | 23°C | 36°C 2010 | 18°C 2000 | 72% |
| May 22 | 32°C | 23°C | 38°C 2020 | 19°C 2000 | 74% |
| May 23 | 32°C | 23°C | 39°C 2020 | 21°C 2000 | 76% |
| May 24 | 31°C | 23°C | 37°C 2020 | 21°C 2004 | 76% |
| May 25 | 31°C | 23°C | 39°C 2020 | 21°C 1993 | 76% |
| May 26 | 31°C | 23°C | 39°C 2020 | 21°C 1997 | 75% |
| May 27 | 31°C | 23°C | 38°C 2003 | 21°C 2006 | 75% |
| May 28 | 31°C | 23°C | 39°C 2003 | 21°C 2017 | 75% |
| May 29 | 31°C | 23°C | 39°C 2003 | 21°C 2017 | 77% |
| May 30 | 31°C | 23°C | 39°C 1992 | 21°C 1999 | 79% |
| May 31 | 31°C | 23°C | 39°C 1992 | 21°C 2011 | 79% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+7).
- May 1
- sunrise 5:53 AM, sunset 6:43 PM
- May 31
- sunrise 5:42 AM, sunset 6:54 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.