September weather forecast and climate
Playa del Carmen, Mexico

A clear skyline and blue water on the white Caribbean Sea beach in Playa del Carmen, Mexico
A clear skyline and blue water on the white Caribbean Sea beach in Playa del Carmen, Mexico

Weather in September

September, the first month of the autumn, in Playa del Carmen, is still a tropical month, with average temperature fluctuating between 30.5°C (86.9°F) and 26.5°C (79.7°F).

Temperature

In September, the average high-temperature is relatively the same as in August - a still hot 30.5°C (86.9°F). In September, in Playa del Carmen, the average low-temperature is 26.5°C (79.7°F).

Heat index

The average heat index is calculated to be a sweltering 38.6°C (101.5°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, pregnancy, differences in body mass, height, and shape). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Playa del Carmen, the average relative humidity in September is 78%.

Rainfall

In Playa del Carmen, during 24.8 rainfall days, 130mm (5.12") of precipitation is typically accumulated. Throughout the year, in Playa del Carmen, there are 227.4 rainfall days, and 1021mm (40.2") of precipitation is accumulated.

Sea temperature

August through October, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater.
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

The average length of the day in September is 12.3h.

Sunshine

The average sunshine in Playa del Carmen is 9h.

UV index

Months with the highest UV index are February through October, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 7 in September interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the temperature in September in Playa del Carmen?

The average high-temperature, in September, in Playa del Carmen, is 30.5°C (86.9°F), while the average low-temperature is 26.5°C (79.7°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 38.6°C (101.5°F).

What is the average humidity in September in Playa del Carmen?

In September, the average relative humidity in Playa del Carmen, Mexico, is 78%.

How much does it rain in Playa del Carmen in September?

In September, the rain falls for 24.8 days. Throughout September, 130mm (5.12") of precipitation is accumulated.

What are the months with the warmest sea water in Playa del Carmen?

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

What is the water temperature in September in Playa del Carmen?

In September, the average sea temperature in Playa del Carmen is 29°C (84.2°F). 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.

How many hours of daylight does Playa del Carmen have in September?

The average length of the day in September in Playa del Carmen is 12.3h.

How many hours of sunshine does Playa del Carmen have in September?

In Playa del Carmen, the average sunshine in September is 9h.

When is the highest UV index in Playa del Carmen?

February through October, with an average maximum UV index of 7, are months with the highest UV index in Playa del Carmen, Mexico.

How high is the UV index in September in Playa del Carmen?

The average daily maximum UV index in September in Playa del Carmen is 7. A UV Index of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV radiation.

Average temperature in September
Playa del Carmen, Mexico

Average temperature in September - Playa del Carmen, Mexico
  • Average high temperature in September: 30.5°C

The warmest month (with the highest average high temperature) is August (31.1°C).
The month with the lowest average high temperature is January (26.1°C).

  • Average low temperature in September: 26.5°C

The month with the highest average low temperature is August (27°C).
The coldest month (with the lowest average low temperature) is January (21.8°C).

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Average pressure in September
Playa del Carmen, Mexico

Average pressure in September - Playa del Carmen, Mexico
  • Average pressure in September: 1012.4mbar

The month with the highest atmospheric pressure is January (1017.6mbar).
The month with the lowest atmospheric pressure is September (1012.4mbar).

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Average wind speed in September
Playa del Carmen, Mexico

Average wind speed in September - Playa del Carmen, Mexico
  • Average wind speed in September: 11.9km/h

The windiest month (with the highest average wind speed) is March (16.1km/h).
The calmest months (with the lowest average wind speed) are July, August and September (11.9km/h).

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Average humidity in September
Playa del Carmen, Mexico

Average humidity in September - Playa del Carmen, Mexico
  • Average humidity in September: 78%

The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is March (74%).

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Average rainfall in September
Playa del Carmen, Mexico

Average rainfall in September - Playa del Carmen, Mexico
  • Average rainfall in September: 130mm

The wettest month (with the highest rainfall) is June (169mm).
The driest month (with the least rainfall) is March (24mm).

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Average rainfall days in September
Playa del Carmen, Mexico

Average rainfall days in September - Playa del Carmen, Mexico
  • Average rainfall days in September: 24.8 days

The month with the highest number of rainy days is September (24.8 days).
The month with the least rainy days is February (12.6 days).

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Average sea temperature in September
Playa del Carmen, Mexico

Average sea temperature in September - Playa del Carmen, Mexico
  • Average sea temperature in September: 29°C

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

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Average daylight in September /
Average sunshine in September
Playa del Carmen, Mexico

Average daylight in September / Average sunshine in September - Playa del Carmen, Mexico
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.4h).
The month with the shortest days is December (Average daylight: 10.9h).

  • Average sunshine in September: 9h

The month with the most sunshine is July (Average sunshine: 9.2h).
The month with the least sunshine is January (Average sunshine: 7.8h).

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Average sunshine days in September
Playa del Carmen, Mexico

Average sunshine days in September - Playa del Carmen, Mexico
  • Average sunshine days in September: 2.9 days

The month with the most sunshine days is March (13.6 days).
The month with the least sunshine days is September (2.9 days).

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Average UV index in September
Playa del Carmen, Mexico

Average UV index in September - Playa del Carmen, Mexico
  • Average UV index in September: 7

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 7).
Months with the lowest UV index are January, November and December (UV index 6).

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Average cloud cover in September
Playa del Carmen, Mexico

Average cloud cover in September - Playa del Carmen, Mexico
  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in September
Playa del Carmen, Mexico

Average visibility in September - Playa del Carmen, Mexico
  • Average visibility in September: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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