Hamilton in August
August in Hamilton is peak winter, and the weather reflects it. You're looking at average daily highs of 15.3 degrees.
The average daily maximum is 15.3 degrees with overnight lows of 7.4 degrees. It's cool but manageable. A jumper handles most of it.
August is 3.7 degrees cooler than Hamilton's yearly average.
Rainfall in August averages 74mm over about 13 days. That means roughly a 43% chance of rain on any given day, pack a compact umbrella just in case.
Sunshine-wise, August delivers around 10.4 MJ/m2 of daily solar radiation. UV sits in the moderate category. Sunscreen is still wise, especially if you burn easily.
August scores 2.7/10 on our Comfort Score. It's the tough end of the year weather-wise.
Packing tip: bring layers you can peel on and off, and waterproof gear.
Check the data table below for the full picture, or compare Hamilton in August with another destination.
August at a Glance
Temperature Range
Daily temperature range in August. The bar shows the typical spread between overnight lows and afternoon highs.
What to Pack
- A jumper or light cardigan for flexibility
- A warm jumper or fleece for cool mornings and evenings
- A waterproof jacket or compact umbrella
Coming From Overseas?
How August in Hamilton stacks up against major cities around the world.
About 9 degrees cooler and considerably wetter.
About 15 degrees cooler and considerably drier.
About 16 degrees cooler and considerably drier.
How August Compares
Hamilton's monthly climate at a glance. August is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 24.8 | 13.5 | 57mm | 10.0 |
| Feb | 26.9 | 12.4 | 1mm | 9.5 |
| Mar | 24.8 | 12.2 | 10mm | 10.0 |
| Apr | 17.0 | 8.6 | 36mm | 4.6 |
| May | 15.9 | 7.1 | 20mm | 4.0 |
| Jun | 11.9 | 4.5 | 30mm | 1.0 |
| Jul | 11.8 | 4.6 | 74mm | 1.0 |
| Aug | 15.3 | 7.4 | 74mm | 2.7 |
| Sep | 14.4 | 7.3 | 67mm | 2.0 |
| Oct | 18.4 | 8.2 | 70mm | 6.3 |
| Nov | 22.1 | 10.4 | 66mm | 9.1 |
| Dec | 24.7 | 11.8 | 36mm | 10.0 |