Cozumel
Mexico
Long-term weather forecast
Long-term weather forecast

March weather forecast and climate
Cozumel, Mexico

A small blue boat, palm trees, and clear blue waters on Chen Rio white sandy beach in Cozumel, Mexico, with a small island
A small blue boat, palm trees, and clear blue waters on Chen Rio white sandy beach in Cozumel, Mexico, with a small island
The first month of the spring, March, is a hot month in Cozumel, Mexico, with average temperature ranging between min 20.7°C (69.3°F) and max 30.9°C (87.6°F).
The ideal sea water temperature of 26°C (78.8°F) and only 4 rainfall days, with 32.2mm (1.3") of accumulated rainfall, make March the best time for swimming and other water activities.

Temperature

In March, the average high-temperature is relatively the same as in February - a hot 30.9°C (87.6°F). In Cozumel, in March, the average low-temperature is 20.7°C (69.3°F).

Heat index

The average heat index in March is calculated to a scorching 40.2°C (104.4°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', 'apparent temperature', 'real feel', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, differences in body mass, height, and shape, pregnancy), and activity. 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 especially crucial for babies and toddlers. 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 normally cools itself by perspiration, as evaporated sweat carries heat away from the body. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

Months with the lowest humidity are March and April, with an average relative humidity of 79%.

Rainfall

March is the month with the least rainfall. Rain falls for 4 days and accumulates 32.2mm (1.3") of precipitation.

Sea temperature

Months with the coldest seawater in Cozumel are February and March, with an average sea temperature of 26°C (78.8°F).
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

In March, the average length of the day is 12h.

Sunshine

In March, the average sunshine is 7.5h.

UV index

In Cozumel, the average daily maximum UV index is 11. A UV Index value of 11, and more, symbolizes an excessive health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 11 in March interpret into the following advice:
Take all required precautions, as unprotected skin and eyes can burn in minutes. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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 March in Cozumel?

In Cozumel, Mexico, in March, the average high-temperature is 30.9°C (87.6°F), and the average low-temperature is 20.7°C (69.3°F). In March, the average heat index (a.k.a. 'real feel', 'apparent temperature'), that factores the actual air temperature with the relative humidity, is calculated to 40.2°C (104.4°F).

What are the least humid months in Cozumel?

Months with the lowest humidity in Cozumel, Mexico, are March and April, with an average relative humidity of 79%.

What is the average humidity in March in Cozumel?

In Cozumel, the average relative humidity in March is 79%.

How many days does it rain in March in Cozumel?

In Cozumel, in March, it is raining for 4 days, with typically 32.2mm (1.3") of accumulated precipitation.

What is the driest month in Cozumel?

March is the month with the least rainfall in Cozumel. Rain falls for 4 days and accumulates 32.2mm (1.3") of precipitation.

What months are the sea coldest in Cozumel?

February and March, with an average sea temperature of 26°C (78.8°F), are months with the coldest seawater.

How warm is the water in March in Cozumel?

In Cozumel, Mexico, in March, the average water temperature is 26°C (78.8°F). 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.

What is the average length of the day in March in Cozumel?

The average length of the day in March in Cozumel is 12h.

How long on average sun shines in March in Cozumel?

The average sunshine in March in Cozumel is 7.5h.

What is the UV index reading in March in Cozumel?

In Cozumel, the average daily maximum UV index in March is 11. A UV Index estimate of 11, and higher, represents an extreme health threat from the exposure to the Sun's UV radiation.
Average temperature in March - Cozumel, Mexico
  • Average high temperature in March: 30.9°C

The warmest month (with the highest average high temperature) is August (33°C).
Months with the lowest average high temperature are January and December (28.6°C).

  • Average low temperature in March: 20.7°C

The month with the highest average low temperature is June (23.8°C).
Coldest months (with the lowest average low temperature) are January and February (19.4°C).

Average humidity in March - Cozumel, Mexico
  • Average humidity in March: 79%

The month with the highest relative humidity is September (87%).
Months with the lowest relative humidity are March and April (79%).

Average rainfall in March - Cozumel, Mexico
  • Average rainfall in March: 32.2mm

The wettest month (with the highest rainfall) is October (242.5mm).
The driest month (with the lowest rainfall) is March (32.2mm).

Average rainfall days in March - Cozumel, Mexico
  • Average rainfall days in March: 4 days

The month with the highest number of rainy days is October (15.7 days).
The month with the lowest number of rainy days is April (3.7 days).

Average sea temperature in March - Cozumel, Mexico
  • Average sea temperature in March: 26°C

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

Average daylight in March / Average sunshine in March - Cozumel, Mexico
  • Average daylight in March: 12h

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

  • Average sunshine in March: 7.5h

The month with most sunshine is April (Average sunshine: 8.6h).
Months with least sunshine are September and November (Average sunshine: 6.1).

Average UV index in March - Cozumel, Mexico
  • Average UV index in March: 11

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