Weather in St Martins, Isles of Scilly, United Kingdom in May

So you're interested in going to St Martins, Isles of Scilly, United Kingdom in May

May is a very cold and dry time for sunbathing in St Martins, and not recommended. May is too cold for swimming in St Martins for any length of time, unless you have a wetsuit. Consider visiting St Martins in the months of June, July, August, September, for the best beach weather. Also consider one of our other suggestions for May.

Temperature in St Martins in May

The average maximum temperature in St Martins in May is 14°. The average maximum temperature is 12° in the previous month and 17° in the next month.

The average temperature in St Martins in May is 12°. The average temperature ranges is 10° in the previous month and 15° in the next month.

The average minimum temperature in St Martins in May is 11°. The minimum temperature is in the previous month and 13° in the next month.

Sunshine in St Martins in May

The average day light hours per day in St Martins in May are 15.4 and there are 7.7 hours of sunshine per day on average during May making it a quite sunny month with some cloud cover.

The ultraviolet index in St Martins in May is typically 6.8 during May. An ultraviolet index reading of 6 to 7 indicates a high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 20 minutes. Protection against skin and eye damage is needed. Tanning will be safest before 10am and after 4pm. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in St Martins in May

The average sea water temperature in St Martins in May is 11° which is very cold and bracing, it's not recommended you swim with out a full wet suit.

Rainfall in St Martins in May

The average total rainfall in St Martins in May is 0.8cm and on average there are 9.6 rainy days in May making it a dry time to visit the beach.

Humidity in St Martins in May

The maximum dew point (an indicator of humidity) in St Martins in May is 11° which is very comfortable. The dew point is in the previous month and 13° in the next month.

The average maximum relative humidity in St Martins in May is typically 91.6%. The maximum relative humidity is 91.5% in the previous month and 91.8% in the next month.

The average relative humidity in St Martins in May is typically 83%. The average relative humidity is 82.3% in the previous month and 82.4% in the next month.

Wind Speed in St Martins in May

The average maximum wind speed in St Martins in May is typically 32kmh. The average maximum wind speed is 33kmh in the previous month and 30kmh in the next month.

The average wind speed in St Martins in May is typically 24kmh. The average wind speed is 24kmh in the previous month and 22kmh in the next month.

The average wind direction in St Martins in May is from the North West.