Weather in Wellington in August 2025
Average weather
Average temperature in Wellington in August
The expected average maximum temperature in August is +54°F with a maximum of +59°F and a minimum of +37°F.
The average maximum temperature goes down 17% by the end of the month, compared with the beginning of the month, from +59°F to +55°F.
Is Wellington warm or cold in August?
Wellington is typically mild in August.
Maximum temperatures go up compared to the previous month from +54°F to +54°F. The minimum temperature also goes up from +48°F to +48°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
August is one of the coolest months in Wellington, here is the comparison with other months:
Climate in Wellington in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +54°F | +54°F | +55°F | ||||
| Min. temperature | ||||||
| +36°F | +34°F | +36°F | ||||
| Max. temperature | ||||||
| +63°F | +64°F | +66°F | ||||
| Rainfall | ||||||
| 100 mm | 94 mm | 79 mm | ||||
| Wind | ||||||
| 6 m/s | 6 m/s | 6 m/s | ||||
| Humidity | ||||||
| 80% | 80% | 81% | ||||
| Air pressure | ||||||
| 1013 HPa | 1013 HPa | 1012 HPa | ||||
| Sunny days | ||||||
| 5 | 4 | 4 | ||||
| Cloudy days | ||||||
| 9 | 9 | 10 | ||||
| Rainy days | ||||||
| 17 | 18 | 16 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as ok as in July. The temperature levels stay the same in the area of +54°F for average maximum temperature during the day. As August arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 100 mm to 94 mm. Humidity levels don’t change as the month goes on, averaging around 80%. The average wind speed doesn’t change much during August, staying around 6 m/s. The days becoming less sunny, going from 5 sunny days in July to 4 in August.
September brings much the same weather, it remains ok.
Wind
The average wind speed is 6 m/s getting up to 15 m/s which is quite strong. The wind will cause branches to move and ground debris to fly around.
The average wind speed in Wellington is gradually increasing during August, going from 9 m/s to 10 m/s over the course of the month.
Rain
How was the weather last August in Wellington?
Climate Change Over the Years
The climate in Wellington in August has not changed that much over the last 43 years.
The average temperature was the lowest in 1992 (+57°F) and the highest in 2022 (+63°F). The driest year was 2007 with only 644 mm of rainfall, and the wettest year was 2022 with 2261 mm.
FAQ
Is August a good time to visit Wellington?
Can you sunbathe in Wellington in August?
Is Wellington rainy in August?
Is it sunny in Wellington in August?
Other cities in New Zealand
Monthly weather in Wellington
Source of the data
For this page, we’ve looked at the typical weather in Wellington, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.