Tulum
Mexico
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Tulum, Mexico

Rocks, trees, sandy beaches, and clear waters surrounding the God of Winds Temple in Tulum, Mexico
Rocks, trees, sandy beaches, and clear waters surrounding the God of Winds Temple in Tulum, Mexico
September, the first month of the autumn, in Tulum, is still a hot month, with average temperature ranging between min 23°C (73.4°F) and max 32°C (89.6°F).

Temperature

In Tulum, the average high-temperature is practically the same as in August - a still hot 32°C (89.6°F). In Tulum, in September, the average low-temperature is 23°C (73.4°F).

Rainfall

September is the month with the most rainfall. Rain falls for 15 days and accumulates 226mm (8.9") of precipitation.

Sea temperature

August through October, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Tulum.
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

The average length of the day in September is 12.2h.

Sunshine

January, September through December, with an average of 6h of sunshine, are months with the least sunshine in Tulum.

UV index

In Tulum, the average daily maximum UV index is 11. A UV Index value of 11, and more, symbolizes an extreme threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 11 interpret into the following advice:
Take all required precautions, as unprotected skin and eyes can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in September in Tulum?

In September, in Tulum, the average high-temperature is 32°C (89.6°F), and the average low-temperature is 23°C (73.4°F).

How many days does it rain in September in Tulum?

In Tulum, Mexico, in September, it is raining for 15 days, with typically 226mm (8.9") of accumulated precipitation.

What is the rainiest month in Tulum?

September is the month with the most rainfall in Tulum. Rain falls for 15 days and accumulates 226mm (8.9") of precipitation.

What are the months with the warmest sea water in Tulum?

August through October, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Tulum.

What is the water temperature in September in Tulum?

In Tulum, in September, the average water temperature is 29°C (84.2°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Tulum have in September?

In September, the average length of the day in Tulum is 12.2h.

What is the month with the least sunshine in Tulum?

Months with the least sunshine in Tulum, Mexico, are January, September through December, with an average of 6h of sunshine.

How long on average sun shines in September in Tulum?

The average sunshine in September in Tulum is 6h.

What is the UV index intensity in September in Tulum?

The average daily maximum UV index in September in Tulum, Mexico, is 11. A UV Index value of 11, and more, symbolizes an extreme health threat from unsafe exposure to the Sun's UV rays.
Average temperature in September - Tulum, Mexico
  • Average high temperature in September: 32°C

Warmest months (with the highest average high temperature) are April, May, June, July and August (33°C).
Months with the lowest average high temperature are January and December (29°C).

  • Average low temperature in September: 23°C

Months with the highest average low temperature are June, July and September (23°C).
Coldest months (with the lowest average low temperature) are January, February and December (18°C).

Average rainfall in September - Tulum, Mexico
  • Average rainfall in September: 226mm

The wettest month (with the highest rainfall) is September (226mm).
The driest month (with the lowest rainfall) is March (37mm).

Average rainfall days in September - Tulum, Mexico
  • Average rainfall days in September: 15 days

The month with the highest number of rainy days is September (15 days).
The month with the lowest number of rainy days is April (3 days).

Average sea temperature in September - Tulum, Mexico
  • Average sea temperature in September: 29°C

Best months for swimming (with the highest average sea temperature) are August, September and October (29°C).
Coldest months (with the lowest average sea temperature) are January, February and March (26°C).

Average daylight in September / Average sunshine in September - Tulum, Mexico
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 13.3h).
The month with shortest days is December (Average daylight: 10.9h).

  • Average sunshine in September: 6h

Months with most sunshine are March, April and May (Average sunshine: 8h).
Months with least sunshine are January, September, October, November and December (Average sunshine: 6).

Average UV index in September - Tulum, Mexico
  • Average UV index in September: 11

Months with the highest UV index are April, May, June, July and August (UV index 12).
The month with the lowest UV index is December (UV index 7).