Mata-Utu weather in January

In January, Mata-Utu has daytime highs averaging 28 °C, nights around 26 °C, with 26 wet days, and a sea temperature of 29 °C. Figures are 1991–2020 climate normals.

  1. Jan 27°
  2. Feb 27°
  3. Mar 27°
  4. Apr 27°
  5. May 27°
  6. Jun 27°
  7. Jul 27°
  8. Aug 26°
  9. Sep 26°
  10. Oct 27°
  11. Nov 27°
  12. Dec 27°

Daily temperatures through January

24°28°31°18152229
Daily highDaily low Day of month on the horizontal axis. Highs peak at 28.2 °C and lows bottom out at 26.0 °C.

How January develops

Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.

DaysAvg highAvg lowChance of rain
1–10 January28.0 °C26.3 °C87 %
11–20 January28.0 °C26.3 °C80 %
21–31 January28.0 °C26.3 °C82 %
0%50%100%151015202530
Chance of a wet day (over 1 mm) by date in January. Wettest date over the 30 years: January 21, at 97 %. Single dates are noisy — read the shape, not the spikes.

What to expect

Measure Typical January Share of the month
Days above 25 °C 31 of 31 100 %
Days above 30 °C 0 of 31 0 %
Days below 0 °C 0 of 31 0 %
Days with more than 1 mm rain 26 of 31 83 %

Conditions in January

MeasureAverage
Mean temperature 27 °C
Record high (1991–2020) 30 °C
Record low (1991–2020) 25 °C
Relative humidity 83 %
Wind speed 25 km/h
Cloud cover 80 %

Where Mata-Utu ranks in January

RankingPositionValue
Warmest sea temperatures in the world in January18thof 5029 °C

January compared with the months around it

Month Avg high Rainfall Cloud
January 28.0 °C 357 mm 80 %
February 28.0 °C 328 mm 79 %
March 28.0 °C 300 mm 74 %
November 27.7 °C 261 mm 71 %
December 27.9 °C 321 mm 77 %

See all twelve months for Mata-Utu

Nearby destinations in January

Destination Avg high Wet days Sea
Mata-Utu 28 °C 26 29
Apia 30 °C 28 29
Pago Pago 27 °C 26 29

QuestionsJanuary in Mata-Utu, answered

How warm is Mata-Utu in January?

Daily highs average 28 °C and nights fall to about 26 °C, a spread of 1.7 °C between afternoon and dawn. That makes January the 4th warmest month of the year here.

Does it rain much in Mata-Utu in January?

January averages 357 mm of rain, spread over about 26 of the 31 days — 83 % of the month. Cloud cover averages 80 % of the sky.

Is the sea warm enough to swim in January?

The sea averages 29 °C off Mata-Utu in January. Most people find water below 20 °C bracing and above 25 °C comfortable for a long swim; this figure is a monthly surface average, so a sheltered bay on a still afternoon can be warmer.

How long are the days in January?

Mata-Utu averages 13 hours between sunrise and sunset in January. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.

Data sources and method

Normal period
1991–2020
Dataset version
era5-1991-2020-scores1.1
Last processed

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.