St Helens in March
March is right in the heart of autumn for St Helens, and the weather has a definite personality this time of year.
The average daily maximum is 21.5 degrees with overnight lows of 12.1 degrees. That's solidly pleasant territory. Great for being outdoors.
March is 3.7 degrees warmer than the yearly average here.
You're looking at 35mm of rain across 6 days in a typical March. Light enough that it won't ruin your plans.
Sunshine-wise, March delivers around 16.7 MJ/m2 of daily solar radiation. UV sits in the very high category. You'll want SPF 50+ and a decent hat.
March earns a 8.6/10 on our Comfort Score. This is prime time.
Packing tip: bring a decent jumper or fleece, and serious sun protection.
Scroll down for the detailed climate data, or explore what nearby cities are like in March.
March at a Glance
Temperature Range
Daily temperature range in March. The bar shows the typical spread between overnight lows and afternoon highs.
What to Pack
- A jumper or light cardigan for flexibility
- A light rain jacket just in case
- Sunscreen (SPF 30+) and sunglasses for UV protection
Coming From Overseas?
How March in St Helens stacks up against major cities around the world.
About 10 degrees warmer and considerably drier.
About 12 degrees warmer and considerably drier.
About 8 degrees warmer and considerably drier.
How March Compares
St Helens's monthly climate at a glance. March 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 |