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

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

July is a slightly cold and slightly rainy time for sunbathing in St Martins. July 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 July.

Temperature in St Martins in July

The average maximum temperature in St Martins in July is 19°. The average maximum temperature is 17° in the previous month and 19° in the next month.

The average temperature in St Martins in July is 17°. The average temperature ranges is 15° in the previous month and 17° in the next month.

The average minimum temperature in St Martins in July is 15°. The minimum temperature is 13° in the previous month and 15° in the next month.

Sunshine in St Martins in July

The average day light hours per day in St Martins in July are 15.9 and there are 8.6 hours of sunshine per day on average during July making it a sunny month with few clouds.

The ultraviolet index in St Martins in July is typically 7.7 during July. An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. 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 July

The average sea water temperature in St Martins in July is 14.9° which is cold for swimming, a full wet suit is required to spend any length of time in the sea.

Rainfall in St Martins in July

The average total rainfall in St Martins in July is 0.5cm and on average there are 10.8 rainy days in July making it a slightly wet time to visit the beach.

Humidity in St Martins in July

The maximum dew point (an indicator of humidity) in St Martins in July is 15° which is comfortable for everyone. The dew point is 13° in the previous month and 15° in the next month.

The average maximum relative humidity in St Martins in July is typically 92.4%. The maximum relative humidity is 91.8% in the previous month and 91.7% in the next month.

The average relative humidity in St Martins in July is typically 82.4%. The average relative humidity is 82.4% in the previous month and 80.9% in the next month.

Wind Speed in St Martins in July

The average maximum wind speed in St Martins in July is typically 29kmh. The average maximum wind speed is 30kmh in the previous month and 30kmh in the next month.

The average wind speed in St Martins in July is typically 21kmh. The average wind speed is 22kmh in the previous month and 21kmh in the next month.

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