Alofi climate
Alofi is warmest in March, with average highs of 27 °C, and coldest in August, when nights average 23 °C. January is the wettest month (258 mm) and August the driest (73 mm). Figures are 1991–2020 climate normals.
Across a full year Alofi averages 1,763 mm of rain and 269 days above 25 °C.
Niue · population 624 · 1991–2020 normals
Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month
- Warmest month March 27 °C
- Coldest month August 23 °C
- Driest month August 73 mm
- Wettest month January 258 mm
- Least cloud July 58 % cloud
- Hottest on record January 29 °C
- Coldest on record August 19 °C
- Warmest sea March 28 °C
What to expectAlofi through the year
Alofi changes little through the year. Average daily highs stay between 24 and 27 °C, so no month stands out as a season in the way it would further from the equator.
Counted across a normal year, 269 days a year reach 25 °C. The warmest reading in the 1991–2020 record is 29 °C, in January.
Rain is strongly seasonal. January averages 258 mm against 73 mm in August — 3.5 times as much. Planning around the dry months matters more here than planning around temperature.
The sea off Alofi is warmest in March at 28 °C and coldest in August at 25 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.
Month by month
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| January | 27.0 °C | 258 mm | 71 % |
| February | 27.4 °C | 218 mm | 68 % |
| March | 27.4 °C | 222 mm | 67 % |
| April | 27.0 °C | 174 mm | 62 % |
| May | 26.0 °C | 135 mm | 61 % |
| June | 25.2 °C | 75 mm | 60 % |
| July | 24.6 °C | 86 mm | 58 % |
| August | 24.4 °C | 73 mm | 59 % |
| September | 24.6 °C | 93 mm | 60 % |
| October | 25.1 °C | 116 mm | 63 % |
| November | 25.9 °C | 131 mm | 67 % |
| December | 26.6 °C | 182 mm | 68 % |
Temperature month by month
| Month | Avg high | Avg low | Mean | Record high | Record low | Days above 25 °C | Days above 30 °C | Days below 0 °C |
|---|---|---|---|---|---|---|---|---|
| January | 27.0 °C | 25.7 °C | 26.4 °C | 29.3 °C | 22.4 °C | 31 | 0 | 0 |
| February | 27.4 °C | 26.0 °C | 26.7 °C | 29.2 °C | 24.0 °C | 28 | 0 | 0 |
| March | 27.4 °C | 25.9 °C | 26.7 °C | 29.1 °C | 23.8 °C | 31 | 0 | 0 |
| April | 27.0 °C | 25.7 °C | 26.3 °C | 28.8 °C | 23.0 °C | 30 | 0 | 0 |
| May | 26.0 °C | 24.8 °C | 25.4 °C | 28.1 °C | 21.3 °C | 26 | 0 | 0 |
| June | 25.2 °C | 24.1 °C | 24.7 °C | 27.3 °C | 20.8 °C | 19 | 0 | 0 |
| July | 24.6 °C | 23.4 °C | 24.0 °C | 27.3 °C | 19.8 °C | 11 | 0 | 0 |
| August | 24.4 °C | 23.2 °C | 23.8 °C | 27.0 °C | 19.2 °C | 9 | 0 | 0 |
| September | 24.6 °C | 23.5 °C | 24.0 °C | 27.0 °C | 19.8 °C | 11 | 0 | 0 |
| October | 25.1 °C | 23.9 °C | 24.5 °C | 27.5 °C | 20.3 °C | 17 | 0 | 0 |
| November | 25.9 °C | 24.7 °C | 25.3 °C | 28.3 °C | 20.7 °C | 26 | 0 | 0 |
| December | 26.6 °C | 25.3 °C | 26.0 °C | 28.4 °C | 22.6 °C | 30 | 0 | 0 |
Rain, sun and wind month by month
| Month | Rainfall | Wet days | Daylight | Cloud cover | Humidity | Wind | Sea temp |
|---|---|---|---|---|---|---|---|
| January | 258 mm | 20 | 13 h/day | 71 % | 82 % | 28 km/h | 27.8 °C |
| February | 218 mm | 19 | 13 h/day | 68 % | 82 % | 28 km/h | 28.2 °C |
| March | 222 mm | 21 | 12 h/day | 67 % | 82 % | 27 km/h | 28.4 °C |
| April | 174 mm | 16 | 12 h/day | 62 % | 80 % | 29 km/h | 28.0 °C |
| May | 135 mm | 12 | 11 h/day | 61 % | 77 % | 30 km/h | 27.1 °C |
| June | 75 mm | 9 | 11 h/day | 60 % | 76 % | 32 km/h | 26.3 °C |
| July | 86 mm | 9 | 11 h/day | 58 % | 75 % | 32 km/h | 25.6 °C |
| August | 73 mm | 9 | 11 h/day | 59 % | 76 % | 31 km/h | 25.4 °C |
| September | 93 mm | 10 | 12 h/day | 60 % | 77 % | 32 km/h | 25.4 °C |
| October | 116 mm | 12 | 13 h/day | 63 % | 78 % | 31 km/h | 26.0 °C |
| November | 131 mm | 14 | 13 h/day | 67 % | 80 % | 28 km/h | 26.7 °C |
| December | 182 mm | 17 | 13 h/day | 68 % | 81 % | 30 km/h | 27.4 °C |
Planning a trip? See the best time to visit Alofi.
QuestionsCommon questions about Alofi’s climate
When is the best time to visit Alofi?
That depends on what you want, so the honest answer is a comparison rather than a single month. July, August, September sit closest to 20 °C on average, March is the warmest month and August the driest. The month-by-month table above has the full picture.
How hot does Alofi get?
In March, the warmest month, daily highs average 27 °C. The highest value in the 1991–2020 record is 29 °C.
How cold does it get in winter?
Nights average 23 °C in August, the coldest month. Freezing nights are not part of a normal year here.
Which month is wettest in Alofi?
January, averaging 258 mm over 20 days with rain. The driest month is August with 73 mm. The year as a whole averages 1,763 mm.
Are these figures a forecast?
No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Alofi rather than what any particular week will bring. Individual years can differ substantially from the normal.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- 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: monthly rankings, daylight hours, beach and comfort scores. 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.