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Monthly climate in Ailuk, Marshall Islands

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Ailuk features a tropical rainforest climate (Af).Temperatures typically range between 27 °C (80 °F) and 27 °C (82 °F) through the year, but rarely can drop to 24 °C (76 °F) or can rise to as high as 29 °C (85 °F).The average annual precipitation amounts to about 1822 mm (71.7 inches) and receives 251 rainy days on the 1 mm (0.04 inches) threshold annually.Ailuk enjoys an average of 3499 hours of sunshine throughout the year, and daylight varies from 11 hours 31 minutes to 12 hours 41 minutes per day.

Monthly average temperatures in Ailuk, Marshall Islands §

The warmest months in Ailuk are July, August and September, with daily mean temperatures ranging from 27 to 27 °C (82 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 27 to 27 °C (80 - 81 °F) throughout the day. On average each year, Ailuk experiences 329 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 Ailuk, Marshall Islands.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 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 29°C
(84°F)		 29°C
(84°F)		 29°C
(84°F)		 29°C
(85°F)		 29°C
(85°F)		 29°C
(85°F)		 29°C
(85°F)		 29°C
(85°F)		 29°C
(84°F)
Mean maximum 28°C
(82°F)		 28°C
(82°F)		 28°C
(82°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 29°C
(84°F)		 29°C
(84°F)		 29°C
(85°F)		 29°C
(84°F)		 29°C
(84°F)		 28°C
(84°F)
Average high 27°C
(82°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(82°F)		 28°C
(82°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(82°F)
Daily mean 27°C
(81°F)		 27°C
(80°F)		 27°C
(80°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(82°F)		 27°C
(82°F)		 27°C
(82°F)		 27°C
(81°F)		 27°C
(82°F)		 27°C
(81°F)
Average low 26°C
(80°F)		 26°C
(79°F)		 26°C
(79°F)		 26°C
(80°F)		 27°C
(80°F)		 27°C
(80°F)		 27°C
(80°F)		 26°C
(80°F)		 26°C
(80°F)		 26°C
(80°F)		 27°C
(80°F)		 27°C
(80°F)
Mean minimum 25°C
(78°F)		 25°C
(77°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 26°C
(78°F)		 26°C
(78°F)		 26°C
(78°F)		 26°C
(78°F)		 26°C
(78°F)		 26°C
(78°F)		 25°C
(78°F)
Minimum 25°C
(77°F)		 24°C
(76°F)		 25°C
(77°F)		 24°C
(76°F)		 25°C
(78°F)		 25°C
(77°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)

Compare climate in Ailuk with other places

Compare temperature, precipitation, sunshine, UV index in Ailuk, Marshall Islands with other places around the world.

Monthly average precipitation in Ailuk, Marshall Islands §

Ailuk usually has the most precipitation in September, October and November, with an average of 27 rainy days and 257 mm (10.1 inches) of precipitation per month.The driest months in Ailuk are January, February and December. On average, 59 mm (2.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ailuk, Marshall Islands.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) 51 (2.0) 52 (2.0) 78 (3.1) 111 (4.4) 158 (6.2) 153 (6.0) 158 (6.2) 215 (8.5) 253 (9.9) 270 (10.6) 249 (9.8) 73 (2.9)
Average precipitation days (≥ 1 mm) 14 14 15 15 20 23 25 27 26 29 26 17

Monthly sunshine hours in Ailuk, Marshall Islands §

The sunniest months in Ailuk are June, July and August, when the sun shines an average of 10 hours 13 minutes a day.Least sunny months in Ailuk: January, February and November receive an average of 8 hours 39 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ailuk, Marshall Islands.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 238 272 305 306 306 309 322 309 286 282 267 292
Mean daily daylight hours 11h 35m 11h 47m 12h 3m 12h 20m 12h 34m 12h 41m 12h 38m 12h 25m 12h 9m 11h 52m 11h 38m 11h 31m

Solar UV radiation in Ailuk, Marshall Islands §

Ailuk experiences the highest level of ultraviolet (UV) radiation in March, April and September, when the maximum UV index can reach values of 14 - 15, 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 12. For more detailed information, check out our hourly Ailuk UV Index data.

Average daily maximum UV levels by month for Ailuk, Marshall Islands.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) 12 14 15 15 14 13 13 14 14 13 11 10