Saint Helens Weather in May

May in Saint Helens sees daytime temperatures around 17°C (63°F) and lows of 8°C (46°F) at night. With around 73 mm (2.9 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Saint Helens in May

Typically, you can expect about 15 days of rain this month, with 73 mm (2.9 in) on average. With rain spread across many days but low totals, showers are typically short and light rather than heavy.

Temperature in Saint Helens in May

May in Saint Helens brings moderate temperatures, with highs of 17°C (63°F) and nights around 8°C (46°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights fall to 8°C (46°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Saint Helens in May

With about 187 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

For Saint Helens itself, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.