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Monthly climate in Ratchaburi, Thailand

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Ratchaburi features a tropical savanna climate (Aw).Temperatures typically range between 26 °C (79 °F) and 30 °C (87 °F) through the year, but rarely can drop to 16 °C (61 °F) or can rise to as high as 40 °C (105 °F).The average annual precipitation amounts to about 1215 mm (47.8 inches) and receives 166 rainy days on the 1 mm (0.04 inches) threshold annually.Ratchaburi enjoys an average of 3515 hours of sunshine throughout the year, and daylight varies from 11 hours 19 minutes to 12 hours 53 minutes per day.

Monthly average temperatures in Ratchaburi, Thailand §

The warmest months in Ratchaburi are March, April and May, with daily mean temperatures ranging from 30 to 30 °C (86 - 87 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 26 to 27 °C (79 - 81 °F) throughout the day. On average each year, Ratchaburi experiences 328 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 Ratchaburi, 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 34°C
(94°F)		 36°C
(97°F)		 38°C
(102°F)		 40°C
(104°F)		 40°C
(105°F)		 38°C
(100°F)		 37°C
(99°F)		 37°C
(99°F)		 37°C
(100°F)		 35°C
(95°F)		 34°C
(93°F)		 35°C
(95°F)
Mean maximum 33°C
(92°F)		 35°C
(95°F)		 38°C
(100°F)		 39°C
(102°F)		 38°C
(101°F)		 36°C
(97°F)		 36°C
(97°F)		 36°C
(96°F)		 35°C
(95°F)		 34°C
(94°F)		 33°C
(92°F)		 33°C
(92°F)
Average high 31°C
(88°F)		 33°C
(91°F)		 35°C
(95°F)		 36°C
(97°F)		 35°C
(95°F)		 34°C
(93°F)		 33°C
(92°F)		 33°C
(92°F)		 33°C
(91°F)		 32°C
(89°F)		 31°C
(88°F)		 30°C
(87°F)
Daily mean 26°C
(80°F)		 27°C
(82°F)		 30°C
(86°F)		 30°C
(87°F)		 30°C
(87°F)		 30°C
(85°F)		 29°C
(85°F)		 29°C
(84°F)		 29°C
(84°F)		 28°C
(83°F)		 27°C
(81°F)		 26°C
(79°F)
Average low 22°C
(72°F)		 23°C
(74°F)		 25°C
(78°F)		 26°C
(80°F)		 27°C
(81°F)		 27°C
(80°F)		 26°C
(80°F)		 26°C
(79°F)		 26°C
(79°F)		 25°C
(78°F)		 24°C
(76°F)		 22°C
(72°F)
Mean minimum 18°C
(65°F)		 20°C
(69°F)		 22°C
(72°F)		 24°C
(75°F)		 25°C
(77°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)		 24°C
(75°F)		 21°C
(70°F)		 18°C
(65°F)
Minimum 16°C
(61°F)		 19°C
(67°F)		 21°C
(70°F)		 21°C
(70°F)		 24°C
(75°F)		 25°C
(77°F)		 25°C
(77°F)		 24°C
(76°F)		 24°C
(76°F)		 23°C
(73°F)		 21°C
(70°F)		 16°C
(61°F)

Compare climate in Ratchaburi with other places

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

Monthly average precipitation in Ratchaburi, Thailand §

Ratchaburi usually has the most precipitation in August, September and October, with an average of 23 rainy days and 192 mm (7.6 inches) of precipitation per month.The driest months in Ratchaburi are January, February and December. On average, 17 mm (0.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ratchaburi, 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) 21 (0.8) 12 (0.5) 30 (1.2) 88 (3.5) 141 (5.5) 125 (4.9) 120 (4.7) 167 (6.6) 209 (8.2) 202 (7.9) 83 (3.3) 17 (0.7)
Average precipitation days (≥ 1 mm) 3 2 4 11 20 21 22 25 24 21 10 3

Monthly sunshine hours in Ratchaburi, Thailand §

The sunniest months in Ratchaburi are March, April and May, when the sun shines an average of 10 hours 31 minutes a day.Least sunny months in Ratchaburi: January, August and September receive an average of 8 hours 27 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ratchaburi, 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 250 298 332 318 316 299 280 266 260 282 293 314
Mean daily daylight hours 11h 24m 11h 41m 12h 2m 12h 25m 12h 44m 12h 53m 12h 49m 12h 32m 12h 10m 11h 48m 11h 29m 11h 19m

Solar UV radiation in Ratchaburi, Thailand §

Ratchaburi experiences the highest level of ultraviolet (UV) radiation in April, May and August, when the maximum UV index can reach values of 14 - 14, which corresponds to the Extreme category of sun exposure.January, November and December are in the Very High / Extreme exposure category. In these months, the maximum values of the UV index do not exceed 11. For more detailed information, check out our hourly Ratchaburi UV Index data.

Average daily maximum UV levels by month for Ratchaburi, 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) 11 12 14 14 14 13 14 14 13 13 10 9