'Ohonua, Tonga climate

Af Tropical rainforest

'Ohonua has a remarkably steady tropical climate (Tropical rainforest, Köppen Af). The hottest month is February with an average daily high near 30°C, while the coldest is August averaging around 21°C at night. Around 1582 mm of precipitation falls each year, peaking in February (212 mm) and easing off in August (69 mm).

☀️ All year

Warm

Daytime highs near 30°C most of the year.

🌙 Nights

Stays warm

Even the coolest nights stay near 21°C.

🌧️ Rain

Very wet

About 1582 mm of rain a year.

Wettest in February

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)

'Ohonua climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	29	30	30	29	28	27	26	26	26	27	28	29
Avg temp (°C)	27	27	27	26	25	24	23	23	24	25	26	27
Avg low (°C)	25	25	25	24	23	22	21	21	21	22	23	24
Precipitation (mm)	173	212	166	162	123	92	98	69	96	105	122	165

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	29	30	30	29	28	27
Avg temp (°C)	27	27	27	26	25	24
Avg low (°C)	25	25	25	24	23	22
Precipitation (mm)	173	212	166	162	123	92

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	26	26	26	27	28	29
Avg temp (°C)	23	23	24	25	26	27
Avg low (°C)	21	21	21	22	23	24
Precipitation (mm)	98	69	96	105	122	165

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	71	69	69	70	68	68	66	67	68	69	70	71
Relative humidity (%)	83	82	82	80	79	79	78	79	80	80	81	81
Wind speed (mph)	12.2	11.7	11.4	12.9	12.7	13.2	13.1	12.9	13.0	12.9	11.9	12.6

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	71	69	69	70	68	68
Relative humidity (%)	83	82	82	80	79	79
Wind speed (mph)	12.2	11.7	11.4	12.9	12.7	13.2

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	66	67	68	69	70	71
Relative humidity (%)	78	79	80	80	81	81
Wind speed (mph)	13.1	12.9	13.0	12.9	11.9	12.6

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 27 years of daily observations at Haapai, a weather station, about 185 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →