Climate averages 1991–2020
Hamilton, New Zealand weather
in August.
A cool, wet month: the joint 10th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a cool month in Hamilton, New Zealand: daytime highs average 13.5°C and nights cool to about 5.7°C. By daytime temperature it is the joint 10th warmest of the 12 months.
Expect about 122 mm of rain on roughly 15 days, which makes August a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 40 min on an average August day.
The nearest other city in this atlas is Tauranga (78 km away). In August its highs average 13.4°C, about as warm as Hamilton, New Zealand, with 117 mm of rain.
Among the 11 cities listed in New Zealand, Hamilton, New Zealand ranks 3rd of 11 for the warmest August highs and 10th of 11 for the driest August (rainfall, lowest first). The mean August high of those 11 cities is 12.4°C; Hamilton, New Zealand is 1.1°C warmer than that mean.
From August to September, average highs rise by 1.4°C to 14.8°C, and monthly rainfall falls from 122 mm to 114 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Hamilton, New Zealand climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 22.5°C14.0°C | 14.0°C | 70 | 8.8 | 14.414 h |
| February | 23.2°C14.5°C | 14.5°C | 72 | 8.0 | 13.514 h |
| March | 21.4°C12.8°C | 12.8°C | 72 | 7.6 | 12.412 h |
| April | 18.6°C10.3°C | 10.3°C | 92 | 9.4 | 11.111 h |
| May | 15.8°C8.2°C | 8.2°C | 107 | 11.4 | 10.110 h |
| June | 13.5°C6.1°C | 6.1°C | 114 | 12.1 | 9.610 h |
| July | 12.9°C5.1°C | 5.1°C | 127 | 13.3 | 9.810 h |
| August, selected | 13.5°C5.7°C | 5.7°C | 122 | 14.8 | 10.711 h |
| September | 14.8°C7.1°C | 7.1°C | 114 | 13.9 | 11.812 h |
| October | 16.4°C8.8°C | 8.8°C | 100 | 12.7 | 13.013 h |
| November | 18.1°C10.2°C | 10.2°C | 88 | 11.0 | 14.114 h |
| December | 20.5°C12.7°C | 12.7°C | 99 | 11.0 | 14.715 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Tauranga in AugustNew Zealand · 78 kmHigh 13.4°C · Low 7.7°C · 117 mm rain
- Manukau City in AugustNew Zealand · 95 kmHigh 13.8°C · Low 8.5°C · 97 mm rain
- Auckland in AugustNew Zealand · 114 kmHigh 13.8°C · Low 9.1°C · 104 mm rain
- New Plymouth in AugustNew Zealand · 177 kmHigh 12.4°C · Low 7.3°C · 177 mm rain
- Hastings, New Zealand in AugustNew Zealand · 247 kmHigh 13.0°C · Low 5.5°C · 65 mm rain
- Palmerston North in AugustNew Zealand · 288 kmHigh 12.1°C · Low 5.2°C · 89 mm rain
- Lower Hutt in AugustNew Zealand · 383 kmHigh 11.8°C · Low 7.7°C · 80 mm rain
- Wellington in AugustNew Zealand · 392 kmHigh 11.3°C · Low 8.6°C · 82 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Hamilton) is explained once on the Hamilton, New Zealand year overview and on the Sources, method and limits page.