Alton Weather in May

May in Alton brings moderate temperatures around 18°C (64°F) during the day, dropping to 8°C (46°F) at night, with quite a bit of rainfall expected, averaging around 64 mm (2.5 in) for the month.

Rainfall in Alton in May

You can expect rain on around 14 days based on historical patterns, with 64 mm (2.5 in) average for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Alton in May

In May, expect moderate temperatures in Alton, with highs of 18°C (64°F) and lows of 8°C (46°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. At 8°C (46°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Alton in May

Expect sunny days throughout the month, with an estimated 215 hours of sunshine. This makes it a pleasant time to visit Alton.

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