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27°
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The weather in September is marginally cooler than the previous month and temperatures continue to drop slightly into October. September has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 61% making it sunny but overcast at times. The hours of sunshine per day are 7.5hrs making the days quite long and bright. It is a good time for sunbathing in Cayo Guillermo.
September has total rainfall of 14.7cm (5.8inches) making it quite dry with only moderate showers. There are just 7.2 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days.
Sea temperatures are a very warm 29°C (85°F). September is an excellent month for swimming in Cayo Guillermo with very comfortable temperatures for bathing all day. The sea temperature in September is slightly warmer than the previous month.
Consider visiting Cayo Guillermo 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 a good time for sunbathing in Cayo Guillermo.
September has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 61% making it sunny but overcast at times. The hours of sunshine per day are 7.5hrs making the days quite long and bright. September has total rainfall of 14.7cm (5.8inches) making it quite dry with only moderate showers. There are just 7.2 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days.
More about September temperature and sunshine.
Yes, September is an excellent month for swimming in Cayo Guillermo with very warm sea temperatures 29°C (85°F).
More about September sea temperatures.
Yes, September is a great time for a holiday in Cayo Guillermo.
September has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 61% making it sunny but overcast at times. The hours of sunshine per day are 7.5hrs making the days quite long and bright. September has total rainfall of 14.7cm (5.8inches) making it quite dry with only moderate showers. There are just 7.2 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days. It is a good time for sunbathing in Cayo Guillermo. Sea temperatures are a very warm 29°C (85°F). September is an excellent month for swimming in Cayo Guillermo with very comfortable temperatures for bathing all day.
More about the September temperatures and sunshine.
Yes, Cayo Guillermo is very hot and perfect for sunbathing on clear days in September.
The average maximum temperature in Cayo Guillermo in September is 31°C (88°F). The average maximum temperature is 32°C (89°) in the previous month and 30°C (85°F) in the next month.
The average temperature in Cayo Guillermo in September is 28°C (82°F). The average temperature is 28°C (83°F) in the previous month and 27°C (80°F) in the next month.
More info about the September temperatures and sunshine.
The average day light hours per day in Cayo Guillermo in September are 12.3. The sunshine percentage is 61% making it sunny but overcast at times. The hours of sunshine per day are 7.5hrs making the days quite long and bright.
More about September sunshine.
The weather in September is marginally cooler than the previous month and temperatures continue to drop slightly into October. The average maximum temperature in Cayo Guillermo in September is 31°C (88°F). The average maximum temperature is 32°C (89°F) in the previous month and 30°C (85°F) in the next month.
The average temperature in Cayo Guillermo in September is 28°C (82°F). The average temperature is 28°C (83°F) in the previous month and 27°C (80°F) in the next month.
The average minimum temperature in Cayo Guillermo in September is 24°C (76°F). The minimum temperature is 25°C (77°F) in the previous month and 24°C (75°F) in the next month.
The days in September are slightly shorter than the previous month and days continue to get slightly shorter into October. September has less hours of sunshine than the previous month and hours of sunshine continue to drop slightly into October. During September the average day light hours are 12.3 per day in Cayo Guillermo. The sunshine percentage is 61% making it sunny but overcast at times. The hours of sunshine per day are 7.5hrs making the days quite long and bright.
The ultraviolet index in Cayo Guillermo in September is typically 11.5 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 Cayo Guillermo in September is 29.3°C (84.7°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 much wetter than the previous month and rainfall continues to rise into October. September has a couple of more days of rain than the previous month and rainy days continue to rise slightly into October. The average total rainfall in Cayo Guillermo in September is 14.7cm (5.8inches) and on average there are 7.2 rainy days in September making it a quite rainy time to visit the beach.
The maximum dew point (an indicator of humidity) in Cayo Guillermo 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 (76°F) in the previous month and 24°C (24°F) in the next month.
The average maximum relative humidity in Cayo Guillermo in September is typically 89.9%. The maximum relative humidity is 87.8% in the previous month and 88.4% in the next month.
The average relative humidity in Cayo Guillermo in September is typically 76.1%. The average relative humidity is 73.6% in the previous month and 76.3% in the next month.
The average maximum wind speed in Cayo Guillermo in September is typically 25KM/H (15MPH). The average maximum wind speed is 26KM/H (16MPH) in the previous month and 24KM/H (15MPH) in the next month.
The average wind speed in Cayo Guillermo in September is typically 11KM/H (7MPH). The average wind speed is 12KM/H (7MPH) in the previous month and 13KM/H (8MPH) in the next month.
The average wind direction in Cayo Guillermo 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.
