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12°
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10°
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12°
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The annual average maximum daily temperature is 13.6°C (56.4°F) which is too cold for sunbathing. The annual average water temperature is typically 12.8°C (55.1°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit. Annually there are on average 11.5 days of rain per month and 5.6 hours of sun per day.
The best months to visit St Martins are June, July, August, September, for the best beach weather, the most sunshine and optimal sunbathing and swimming conditions with the least chance of rain.
The sea is best for swimming between June and November when the sea temperature is above the average 13°C (55°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.
No, you can't sunbathe in St Martins all year round. Some months are too cold for sunbathing, however you might enjoy other beach activities such as taking a walk, going hiking along trails or just enjoying the scenery.
Even during the warmest month, sunbathing may not be ideal as temperatures don't reach 20°C (72°F). The warmest month in St Martins is July when the average maximum temperature is 19°C (65°F), average temperature is 17°C (62°F) and average minimum temperature is 15°C (59°F).
More info about the annual temperatures and sunshine.
No, you can't swim in St Martins all year round.
The warmest sea water temperatures in St Martins are found in August when they peak at 17°C (62°F) and lowest in March when they dip to 10°C (50°F).
The sea temperature is above average for swimming between June and November when the sea temperature is above 13°C (55°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.
More info about the annual sea temperatures
The hottest month in St Martins is July when the average maximum temperature is not that warm but sunbathing may be possible on some clear days 19°C (65°F), average temperature is 17°C (62°F) and average minimum temperature is 15°C (59°F).
More info about the annual temperatures and sunshine.
The coolest month in St Martins is February when the average maximum temperature is 9°C (49°F), average temperature is 8°C (47°F) and average minimum temperature is 7°C (45°F).
More info about the annual temperatures and sunshine
The driest month in St Martins is July with 0.5cm (0.2inches) of rain and May has the fewest days of rain with 9.6 days with some rain, a quite rainy time to visit the beach.
More info about the annual rainfall
The coldest sea water temperatures in St Martins are found in March when they dip to 10°C (50°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.
More info about the annual sea temperatures.
The warmest sea water temperatures in St Martins are found in August when they peak at 17°C (62°F) which is cool for swimming, shorty wetsuit may help you extend your time in the water.
More info about the annual sea temperatures.
The most humid month in St Martins is July with a dew point (an indicator of humidity) of 15°C (59°F) which is comfortable for everyone.
More info about the annual humidity.
The least humid month in St Martins is February with a dew point of 6°C (43°F) which is a bit dry for some.
More info about the annual humidity.
The most windy month in St Martins is December when the average maximum windspeed is 41KM/H (26MPH) and the average wind speed is 32KM/H (20MPH).
More info about the annual wind conditions.
The hottest month in St Martins is July when the average maximum temperature is 19°C (65°F), average temperature is 17°C (62°F) and average minimum temperature is 15°C (59°F).
The coolest month in St Martins is February when the average maximum temperature is 9°C (9°F), average temperature is 8°C (47°F) and average minimum temperature is 7°C (45°F).
The longest days in St Martins are in June, with an average of 16.3 hours of daylight per day. December has the shortest days with an average of 8.1 hours of daylight per day.
The sunniest days in St Martins are in June which has the most hours of sunshine per day. The sunshine percentage is 56% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 8.7 hours of sunshine per day.
December has the least sunshine. The sunshine percentage is 24% making it extremely gloomy and overcast with little sunshine. There are 1.9 hours of sunshine per day.
The ultraviolet index is the highest in June when it reaches 7.7 and lowest in December when it reaches 0.6.
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.
The warmest sea water temperatures in St Martins are found in August when they peak at 17°C (62°F) and lowest in March when they dip to 10°C (50°F).
The sea is best for swimming between June and November when the temperature is above 13°C (55°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.
The wettest month in St Martins is November with 1.6cm (0.6inches) of rain and October has the most days of rain with 13.2 days with some rain, a pretty wet time to visit the beach.
The driest month in St Martins is July with 0.5cm (0.2inches) of rain and May has the fewest days of rain with 9.6 days with some rain, a quite rainy time to visit the beach.
Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.
Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.
