Alton Weather in May

Alton in May sees moderate temperatures, with highs around 16°C (61°F) and overnight lows of 7°C (45°F). Rainfall is fairly high at around 68 mm (2.7 in) on average, so pack waterproofs just in case.

Rainfall in Alton in May

Historically, May sees about 16 days of rain, with a monthly average of 68 mm (2.7 in). With rain spread across many days but low totals, showers are typically short and light rather than heavy.

Temperature in Alton in May

If you're visiting Alton in May, expect highs of 16°C (61°F) and overnight lows around 7°C (45°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights fall to 7°C (45°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 Alton in May

With about 182 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. July and August typically offer the best weather for Alton.