St Helens in August
August is right in the heart of winter for St Helens, and the weather has a definite personality this time of year.
Expect the mercury to hit around 15.0 degrees during the day and settle at 8.3 degrees after dark. The temperature stays pretty consistent through the day. It's cool but manageable. A jumper handles most of it.
August is 2.8 degrees cooler than St Helens's yearly average.
Rainfall in August averages 61mm over about 10 days. That means roughly a 33% chance of rain on any given day, pack a compact umbrella just in case.
Sunshine-wise, August delivers around 9.5 MJ/m2 of daily solar radiation. UV sits in the moderate category. Sunscreen is still wise, especially if you burn easily.
With a Comfort Score of 2.6/10, August is not the most comfortable time to visit.
Packing tip: bring a proper winter jacket, and a rain jacket or compact umbrella.
The full data breakdown is below. You can also see how other Australian cities compare in August.
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
- Extra layers for chilly nights
- Proper rain gear for frequent showers
Coming From Overseas?
How August in St Helens 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
St Helens's monthly climate at a glance. August is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 22.3 | 13.9 | 41mm | 9.5 |
| Feb | 23.5 | 13.1 | 80mm | 10.0 |
| Mar | 21.5 | 12.1 | 35mm | 8.6 |
| Apr | 18.0 | 9.3 | 70mm | 5.5 |
| May | 15.3 | 8.2 | 81mm | 2.5 |
| Jun | 12.6 | 6.2 | 79mm | 1.0 |
| Jul | 12.1 | 5.3 | 125mm | 1.0 |
| Aug | 15.0 | 8.3 | 61mm | 2.6 |
| Sep | 15.2 | 7.5 | 87mm | 3.2 |
| Oct | 17.2 | 8.2 | 56mm | 5.7 |
| Nov | 19.1 | 10.8 | 158mm | 5.9 |
| Dec | 22.1 | 12.1 | 49mm | 9.5 |