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Monthly climate in Honiara, Solomon Islands

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Honiara features a tropical rainforest climate (Af).Temperatures typically range between 25 °C (77 °F) and 25 °C (78 °F) through the year, but rarely can drop to 22 °C (72 °F) or can rise to as high as 29 °C (84 °F).The average annual precipitation amounts to about 3997 mm (157.4 inches) and receives 333 rainy days on the 1 mm (0.04 inches) threshold annually.Honiara enjoys an average of 3011 hours of sunshine throughout the year, and daylight varies from 11 hours 34 minutes to 12 hours 39 minutes per day.

Monthly average temperatures in Honiara, Solomon Islands §

The warmest months in Honiara are January, February and May, with daily mean temperatures ranging from 25 to 25 °C (78 - 78 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 25 to 25 °C (77 - 77 °F) throughout the day. On average each year, Honiara experiences 322 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 Honiara, Solomon 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 29°C
(84°F)		 29°C
(84°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)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 29°C
(84°F)
Mean maximum 28°C
(83°F)		 29°C
(84°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(82°F)		 28°C
(82°F)		 27°C
(82°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)
Average high 27°C
(82°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(80°F)		 27°C
(80°F)		 26°C
(80°F)		 27°C
(80°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(81°F)
Daily mean 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 25°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(78°F)
Average low 24°C
(76°F)		 24°C
(76°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(76°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)
Mean minimum 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(74°F)
Minimum 23°C
(74°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(73°F)		 22°C
(72°F)		 22°C
(73°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(74°F)

Compare climate in Honiara with other places

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

Monthly average precipitation in Honiara, Solomon Islands §

Honiara usually has the most precipitation in February, March and December, with an average of 28 rainy days and 428 mm (16.9 inches) of precipitation per month.The driest months in Honiara are June, July and August. On average, 237 mm (9.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Honiara, Solomon 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) 352 (13.9) 422 (16.6) 420 (16.5) 376 (14.8) 278 (10.9) 212 (8.4) 267 (10.5) 232 (9.1) 318 (12.5) 301 (11.8) 377 (14.8) 443 (17.4)
Average precipitation days (≥ 1 mm) 23 27 29 29 28 27 27 28 28 28 29 30

Monthly sunshine hours in Honiara, Solomon Islands §

The sunniest months in Honiara are May, August and October, when the sun shines an average of 8 hours 45 minutes a day.Least sunny months in Honiara: January, February and April receive an average of 7 hours 14 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Honiara, Solomon 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 217 203 253 230 270 256 258 265 260 278 264 250
Mean daily daylight hours 12h 35m 12h 23m 12h 7m 11h 52m 11h 40m 11h 34m 11h 37m 11h 47m 12h 2m 12h 17m 12h 31m 12h 39m

Solar UV radiation in Honiara, Solomon Islands §

Honiara experiences the highest level of ultraviolet (UV) radiation in January, February and March, when the maximum UV index can reach values of 16 - 16, which corresponds to the Extreme category of sun exposure.May, June and July 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 Honiara UV Index data.

Average daily maximum UV levels by month for Honiara, Solomon 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) 16 16 16 15 12 10 12 14 15 15 15 15