Roi Et climate

Roi Et Weather in May

NASA POWER reanalysis for the half-degree grid cell around Roi Et, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 36°C on May 1 to 32°C on May 31, and lows from 25°C to 25°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 daily high and low temperature at Roi Et, in °C, with the record for each date.15202530354045151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

May at a glance

Average high
34°C
Average low
25°C
Precipitation
180 mm
Reanalysis high
42°CMay 8, 1998
Reanalysis low
20°CMay 15, 2006
Daylight
12 h 43 min to 13 h 01 min
Cloud cover
78%
Humidity
73%
Dew point
23°C
Wind
10.4 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
May 136°C25°C42°C 199822°C 199955%
May 236°C25°C41°C 199823°C 200958%
May 335°C25°C41°C 199422°C 200959%
May 435°C25°C40°C 199321°C 200961%
May 535°C25°C40°C 200321°C 200462%
May 635°C25°C41°C 200321°C 200462%
May 735°C25°C42°C 200323°C 199463%
May 835°C25°C42°C 199823°C 200864%
May 935°C25°C41°C 199223°C 199165%
May 1034°C25°C40°C 199222°C 199967%
May 1134°C25°C40°C 201621°C 199969%
May 1234°C25°C39°C 202022°C 200870%
May 1334°C25°C40°C 202022°C 200870%
May 1434°C25°C38°C 201022°C 200871%
May 1534°C25°C38°C 199820°C 200672%
May 1633°C25°C38°C 202020°C 200673%
May 1733°C25°C36°C 200322°C 200673%
May 1833°C25°C37°C 200323°C 199674%
May 1933°C25°C38°C 201923°C 199574%
May 2033°C25°C37°C 201022°C 200074%
May 2133°C25°C38°C 202023°C 200975%
May 2233°C25°C38°C 199523°C 199977%
May 2333°C25°C36°C 199123°C 200478%
May 2433°C25°C37°C 199123°C 199778%
May 2533°C25°C37°C 201423°C 199777%
May 2632°C25°C36°C 200522°C 201178%
May 2732°C25°C35°C 199722°C 201778%
May 2832°C25°C38°C 201522°C 201778%
May 2932°C25°C37°C 201523°C 201778%
May 3032°C25°C37°C 201524°C 201179%
May 3132°C25°C37°C 201524°C 200879%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Roi Et, in percent.0204060801102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+7).

May 1
sunrise 5:41 AM, sunset 6:24 PM
May 31
sunrise 5:33 AM, sunset 6:34 PM

Every day of May: sun and moon

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.