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Monthly climate in Chiang Rai, Thailand

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Chiang Rai features a tropical savanna climate (Aw).Temperatures typically range between 20 °C (68 °F) and 27 °C (82 °F) through the year, but rarely can drop to 7 °C (45 °F) or can rise to as high as 41 °C (106 °F).The average annual precipitation amounts to about 1931 mm (76.0 inches) and receives 175 rainy days on the 1 mm (0.04 inches) threshold annually.Chiang Rai enjoys an average of 3471 hours of sunshine throughout the year, and daylight varies from 10 hours 56 minutes to 13 hours 18 minutes per day.

Monthly average temperatures in Chiang Rai, Thailand §

The warmest months in Chiang Rai are May, June and July, with daily mean temperatures ranging from 27 to 27 °C (81 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 20 to 22 °C (68 - 72 °F) throughout the day. On average each year, Chiang Rai experiences 315 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Chiang Rai, Thailand.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 33°C
(91°F)		 35°C
(96°F)		 39°C
(102°F)		 40°C
(105°F)		 41°C
(106°F)		 37°C
(99°F)		 37°C
(98°F)		 36°C
(96°F)		 35°C
(96°F)		 34°C
(93°F)		 33°C
(93°F)		 32°C
(90°F)
Mean maximum 32°C
(89°F)		 34°C
(94°F)		 37°C
(99°F)		 38°C
(101°F)		 37°C
(99°F)		 34°C
(94°F)		 35°C
(95°F)		 34°C
(94°F)		 34°C
(94°F)		 33°C
(92°F)		 32°C
(91°F)		 31°C
(88°F)
Average high 28°C
(82°F)		 31°C
(88°F)		 34°C
(94°F)		 34°C
(93°F)		 33°C
(91°F)		 32°C
(89°F)		 31°C
(88°F)		 31°C
(87°F)		 31°C
(88°F)		 30°C
(86°F)		 29°C
(85°F)		 27°C
(81°F)
Daily mean 20°C
(69°F)		 22°C
(72°F)		 25°C
(78°F)		 27°C
(80°F)		 27°C
(82°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(80°F)		 26°C
(80°F)		 25°C
(78°F)		 23°C
(74°F)		 20°C
(68°F)
Average low 15°C
(59°F)		 15°C
(59°F)		 18°C
(65°F)		 21°C
(70°F)		 23°C
(74°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(75°F)		 23°C
(74°F)		 22°C
(72°F)		 19°C
(67°F)		 15°C
(59°F)
Mean minimum 11°C
(52°F)		 11°C
(52°F)		 14°C
(57°F)		 17°C
(64°F)		 21°C
(70°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(73°F)		 22°C
(72°F)		 20°C
(69°F)		 15°C
(59°F)		 9°C
(49°F)
Minimum 7°C
(46°F)		 10°C
(51°F)		 12°C
(53°F)		 16°C
(61°F)		 20°C
(69°F)		 23°C
(73°F)		 22°C
(72°F)		 23°C
(73°F)		 20°C
(68°F)		 18°C
(65°F)		 13°C
(57°F)		 7°C
(45°F)

Compare climate in Chiang Rai with other places

Compare temperature, precipitation, sunshine, UV index in Chiang Rai, Thailand with other places around the world.

Monthly average precipitation in Chiang Rai, Thailand §

Chiang Rai usually has the most precipitation in June, July and August, with an average of 26 rainy days and 329 mm (12.9 inches) of precipitation per month.The driest months in Chiang Rai are February, March and December. On average, 21 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Chiang Rai, Thailand.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 39 (1.5) 16 (0.6) 13 (0.5) 171 (6.7) 203 (8.0) 277 (10.9) 327 (12.9) 382 (15.1) 260 (10.2) 161 (6.3) 48 (1.9) 33 (1.3)
Average precipitation days (≥ 1 mm) 4 1 2 13 19 25 27 28 24 19 9 4

Monthly sunshine hours in Chiang Rai, Thailand §

The sunniest months in Chiang Rai are March, April and May, when the sun shines an average of 10 hours 40 minutes a day.Least sunny months in Chiang Rai: January, July and August receive an average of 8 hours 0 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Chiang Rai, Thailand.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 239 294 332 317 332 283 258 247 274 287 297 306
Mean daily daylight hours 11h 3m 11h 28m 12h 1m 12h 35m 13h 4m 13h 18m 13h 10m 12h 45m 12h 13m 11h 39m 11h 10m 10h 56m

Solar UV radiation in Chiang Rai, Thailand §

Chiang Rai experiences the highest level of ultraviolet (UV) radiation in May, August and September, when the maximum UV index can reach values of 14 - 14, which corresponds to the Extreme category of sun exposure.January, February and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 10. For more detailed information, check out our hourly Chiang Rai UV Index data.

Average daily maximum UV levels by month for Chiang Rai, Thailand.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 9 10 13 13 14 14 14 14 14 13 10 8