Wellington weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Poor
Best time to visit: January – March
What is the weather like in Wellington in August?
In August, Wellington is cool: daytime highs average 12 °C, and nights cool down to about 9 °C. The sea averages 12.2 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 84 mm in total. All in all, August is not an ideal month for a holiday in Wellington.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 32 | 33 | 44 |
| Day | 11° | 12° | 13° |
| Night | 9° | 9° | 10° |
| Sea | 13° | 12° | 13° |
| Sun | 4 h | 5 h | 6 h |
| Rain days | 12 | 14 | 12 |
More details for August
- Daylight
- 10 h 26 min07:13 – 17:39
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 27 km/haverage daily peakAll months
- Cloud cover
- 60 %on averageAll months
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+12Pacific/Auckland
How the score comes together
- Temperatureweight 50 %35 %
- Sunshineweight 20 %30 %
- Few rainy daysweight 30 %31 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- A jumper for the evenings
- Rain jacket or umbrella
Wellington in August: quick answers
Is Wellington hot in August?
No. In August, Wellington is cool: daytime highs average 12 °C and nights drop to about 9 °C.
Can you swim in Wellington in August?
Only if you don't mind cold water: in August the sea averages just 12.2 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Wellington in August?
Rain is frequent, with about 14 rainy days and 84 mm in total.
Wellington month by month
The whole year in WellingtonAll destinations: New ZealandWhere to go in AugustSea temperature in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences