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The weather in September is warmer than the previous month. September has average maximum temperatures of 35°C (95°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 62% making it sunny but overcast at times. The hours of sunshine per day are 7.6hrs making the days quite long and bright. It is not an optimal time for sunbathing but it is possible on clearer days in San Juan.
September has total rainfall of 20.1cm (7.9inches) making it quite rainy but mostly with moderate tropical showers. There are 21.5 days with some rainfall so there are few clear days to enjoy the beach.
Sea temperatures are a very warm 29°C (84°F). September is an excellent month for swimming in San Juan with very comfortable temperatures for bathing all day. The sea temperature in September is slightly warmer than the previous month.
September's weather in San Juan can be unpredictable, with an increased chance of rain and tropical storms. However, when the sun is shining, it's still a great time for sunbathing and beach activities. Swimming, snorkeling, and diving remain popular, while surfers can take advantage of the occasional swells. Windsurfing and kitesurfing conditions may be less favorable due to the unpredictable winds. Consider visiting San Juan in the months of January, February, March, April, for the best beach weather. Also consider one of our other suggestions for September.
Yes, September is not an optimal time for sunbathing but it is possible on clearer days in San Juan.
September has average maximum temperatures of 35°C (95°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 62% making it sunny but overcast at times. The hours of sunshine per day are 7.6hrs making the days quite long and bright. September has total rainfall of 20.1cm (7.9inches) making it quite rainy but mostly with moderate tropical showers. There are 21.5 days with some rainfall so there are few clear days to enjoy the beach.
More about September temperature and sunshine.
Yes, September is an excellent month for swimming in San Juan with very warm sea temperatures 29°C (84°F).
More about September sea temperatures.
Yes, September is a good time for a holiday in San Juan.
September has average maximum temperatures of 35°C (95°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 62% making it sunny but overcast at times. The hours of sunshine per day are 7.6hrs making the days quite long and bright. September has total rainfall of 20.1cm (7.9inches) making it quite rainy but mostly with moderate tropical showers. There are 21.5 days with some rainfall so there are few clear days to enjoy the beach. It is not an optimal time for sunbathing but it is possible on clearer days in San Juan. Sea temperatures are a very warm 29°C (84°F). September is an excellent month for swimming in San Juan with very comfortable temperatures for bathing all day.
More about the September temperatures and sunshine.
Yes, San Juan is very hot and perfect for sunbathing on clear days in September.
The average maximum temperature in San Juan in September is 35°C (95°F). The average maximum temperature is 32°C (89°) in the previous month and 32°C (89°F) in the next month.
The average temperature in San Juan in September is 29°C (83°F). The average temperature is 29°C (84°F) in the previous month and 28°C (83°F) in the next month.
More info about the September temperatures and sunshine.
The average day light hours per day in San Juan in September are 12.2. The sunshine percentage is 62% making it sunny but overcast at times. The hours of sunshine per day are 7.6hrs making the days quite long and bright.
More about September sunshine.
September is one of the least crowded months at the beaches in San Juan, as the summer vacation season comes to an end and the hurricane season begins. The weather can be unpredictable, with a higher chance of rain and storms. There are no major public holidays or events in September, making it a quiet month at the beach.
The weather in September is warmer than the previous month. The average maximum temperature in San Juan in September is 35°C (95°F). The average maximum temperature is 32°C (89°F) in the previous month and 32°C (89°F) in the next month.
The average temperature in San Juan in September is 29°C (83°F). The average temperature is 29°C (84°F) in the previous month and 28°C (83°F) in the next month.
The average minimum temperature in San Juan in September is 26°C (78°F). The minimum temperature is 26°C (78°F) in the previous month and 25°C (77°F) in the next month.
The days in September are slightly shorter than the previous month and days continue to get marginally shorter into October. September has fewer hours of sunshine than the previous month. During September the average day light hours are 12.2 per day in San Juan. The sunshine percentage is 62% making it sunny but overcast at times. The hours of sunshine per day are 7.6hrs making the days quite long and bright.
The ultraviolet index in San Juan in September is typically 12.3 during September. An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. 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 average sea water temperature in San Juan in September is 29°C (84.2°F) which is very warm and ideal for relaxing and swimming for the whole day. The sea temperature in September is slightly warmer than the previous month.
September weather is drier than the previous month and rainfall continues to drop into October. September has fewer days of rain than the previous month and rainy days continue to drop slightly into October. The average total rainfall in San Juan in September is 20.1cm (7.9inches) and on average there are 21.5 rainy days in September making it a very wet time to visit the beach.
The maximum dew point (an indicator of humidity) in San Juan in September is 25°C (76°F) which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning. The dew point is 25°C (77°F) in the previous month and 24°C (24°F) in the next month.
The average maximum relative humidity in San Juan in September is typically 88%. The maximum relative humidity is 87.9% in the previous month and 88.2% in the next month.
The average relative humidity in San Juan in September is typically 75.6%. The average relative humidity is 75.9% in the previous month and 75% in the next month.
The average maximum wind speed in San Juan in September is typically 28KM/H (17MPH). The average maximum wind speed is 32KM/H (20MPH) in the previous month and 28KM/H (17MPH) in the next month.
The average wind speed in San Juan in September is typically 9KM/H (6MPH). The average wind speed is 13KM/H (8MPH) in the previous month and 9KM/H (5MPH) in the next month.
The average wind direction in San Juan in September is from the East.
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.
