Neiafu, Tonga climate

Af Tropical rainforest

Neiafu has a remarkably steady tropical climate (Tropical rainforest, Köppen Af). The hottest month is February with an average daily high near 85°F, while the coldest is July averaging around 66°F at night. Around 90 inches of precipitation falls each year, peaking in January (11.3 inches) and easing off in August (4.3 inches).

☀️ All year

Warm

Daytime highs near 85°F most of the year.

🌙 Nights

Stays warm

Even the coolest nights stay near 66°F.

🌧️ Rain

Very wet

About 90 in of rain a year.

Wettest in January

⛅ 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)

Neiafu climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	85	85	85	84	82	80	79	79	80	81	83	84
Avg temp (°F)	79	79	79	78	76	74	73	73	74	75	77	78
Avg low (°F)	73	73	73	71	69	68	66	66	68	69	71	73
Precipitation (in)	11.3	10.7	10.0	8.3	6.9	5.5	4.8	4.3	6.6	6.4	6.7	8.4

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	85	85	85	84	82	80
Avg temp (°F)	79	79	79	78	76	74
Avg low (°F)	73	73	73	71	69	68
Precipitation (in)	11.3	10.7	10.0	8.3	6.9	5.5

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	79	79	80	81	83	84
Avg temp (°F)	73	73	74	75	77	78
Avg low (°F)	66	66	68	69	71	73
Precipitation (in)	4.8	4.3	6.6	6.4	6.7	8.4

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	71	70	67	68	65	66	64	66	67	69	70	71
Relative humidity (%)	82	81	82	80	79	79	79	79	80	81	81	81
Wind speed (mph)	11.7	11.5	10.8	12.3	12.6	13.2	13.1	13.2	13.3	13.0	12.0	12.5

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	71	70	67	68	65	66
Relative humidity (%)	82	81	82	80	79	79
Wind speed (mph)	11.7	11.5	10.8	12.3	12.6	13.2

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	64	66	67	69	70	71
Relative humidity (%)	79	79	80	81	81	81
Wind speed (mph)	13.1	13.2	13.3	13.0	12.0	12.5

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 24 years of daily observations at Lupepau'u, a weather station, about 8 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 →