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Whanganui, New Zealand climate
Cfb Oceanic / temperate
Whanganui has a mildly seasonal mild-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is February with an average daily high near 24°C, while the coldest is July averaging around 5°C at night. Precipitation is fairly even year-round, totalling about 861 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Whanganui climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 24 | 22 | 19 | 16 | 13 | 13 | 14 | 15 | 17 | 19 | 21 |
| Avg temp (°C) | 18 | 18 | 16 | 14 | 11 | 9 | 9 | 9 | 11 | 12 | 14 | 16 |
| Avg low (°C) | 12 | 13 | 11 | 9 | 7 | 5 | 5 | 5 | 6 | 8 | 9 | 11 |
| Precipitation (mm) | 53 | 55 | 50 | 74 | 73 | 91 | 74 | 68 | 80 | 88 | 74 | 81 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 24 | 22 | 19 | 16 | 13 |
| Avg temp (°C) | 18 | 18 | 16 | 14 | 11 | 9 |
| Avg low (°C) | 12 | 13 | 11 | 9 | 7 | 5 |
| Precipitation (mm) | 53 | 55 | 50 | 74 | 73 | 91 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 13 | 14 | 15 | 17 | 19 | 21 |
| Avg temp (°C) | 9 | 9 | 11 | 12 | 14 | 16 |
| Avg low (°C) | 5 | 5 | 6 | 8 | 9 | 11 |
| Precipitation (mm) | 74 | 68 | 80 | 88 | 74 | 81 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 66 | 66 | 67 | 65 | 68 | 68 | 69 | 71 | 73 | 72 | 73 |
| Relative humidity (%) | 75 | 75 | 78 | 83 | 88 | 91 | 91 | 90 | 87 | 85 | 81 | 79 |
| Wind speed (mph) | 9.0 | 8.2 | 7.9 | 7.4 | 7.7 | 7.9 | 7.9 | 7.9 | 8.9 | 9.4 | 9.6 | 8.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 66 | 66 | 67 | 65 | 68 |
| Relative humidity (%) | 75 | 75 | 78 | 83 | 88 | 91 |
| Wind speed (mph) | 9.0 | 8.2 | 7.9 | 7.4 | 7.7 | 7.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 69 | 71 | 73 | 72 | 73 |
| Relative humidity (%) | 91 | 90 | 87 | 85 | 81 | 79 |
| Wind speed (mph) | 7.9 | 7.9 | 8.9 | 9.4 | 9.6 | 8.9 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 28 years of daily observations at Palmerston North Aws, a weather station, about 63 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.