Prachuap Khiri Khan Weather in May

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

Average highs run from 31°C on May 1 to 30°C on May 31, and lows from 27°C to 27°C. Normal precipitation for the month is 174 mm over about 28 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: 31°C
Average low: 27°C
Precipitation: 174 mm
Reanalysis high: 35°CMay 1, 1998
Reanalysis low: 25°CMay 1, 1996
Daylight: 12 h 33 min to 12 h 46 min
Cloud cover: 84%
Humidity: 80%
Dew point: 25°C
Wind: 13.3 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	31°C	27°C	35°C 1998	25°C 1996	74%
May 2	31°C	27°C	34°C 1998	26°C 1999	76%
May 3	31°C	27°C	34°C 1998	26°C 1999	78%
May 4	31°C	27°C	34°C 2016	26°C 2008	79%
May 5	31°C	27°C	34°C 1997	26°C 2008	81%
May 6	31°C	27°C	34°C 2016	26°C 2008	82%
May 7	31°C	27°C	34°C 1992	25°C 1999	82%
May 8	31°C	27°C	35°C 1992	26°C 1999	83%
May 9	31°C	27°C	35°C 2010	26°C 1999	85%
May 10	31°C	27°C	34°C 2016	26°C 1999	87%
May 11	31°C	27°C	34°C 2016	26°C 1996	88%
May 12	31°C	27°C	33°C 1997	26°C 2008	89%
May 13	31°C	27°C	33°C 2016	25°C 2008	89%
May 14	31°C	27°C	34°C 2016	26°C 2008	90%
May 15	31°C	27°C	33°C 2016	25°C 2011	91%
May 16	31°C	27°C	34°C 2016	25°C 2007	92%
May 17	31°C	27°C	33°C 2015	26°C 2004	93%
May 18	31°C	27°C	33°C 2015	25°C 2004	94%
May 19	31°C	27°C	33°C 2016	26°C 1996	94%
May 20	30°C	27°C	33°C 1995	26°C 2008	94%
May 21	30°C	27°C	34°C 1995	25°C 1999	95%
May 22	30°C	27°C	33°C 1995	26°C 1999	95%
May 23	30°C	27°C	33°C 1992	26°C 1996	96%
May 24	30°C	27°C	33°C 2010	26°C 1999	96%
May 25	30°C	27°C	32°C 1991	26°C 1999	95%
May 26	30°C	27°C	32°C 2014	26°C 1999	95%
May 27	30°C	27°C	32°C 1997	25°C 2002	95%
May 28	30°C	27°C	32°C 1997	26°C 1999	96%
May 29	30°C	27°C	33°C 2014	25°C 1999	96%
May 30	30°C	27°C	33°C 1992	26°C 1999	96%
May 31	30°C	27°C	34°C 1992	26°C 2008	96%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

May 1: sunrise 6:02 AM, sunset 6:35 PM
May 31: sunrise 5:56 AM, sunset 6:42 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.