April weather forecast and climate
Cozumel, Mexico

Palm trees and clear blue waters on Chen Rio white sandy beach in Cozumel, Mexico
Palm trees and clear blue waters on Chen Rio white sandy beach in Cozumel, Mexico

Weather in April

April, like March, is another tropical spring month in Cozumel, Mexico, with average temperature varying between 21.8°C (71.2°F) and 32°C (89.6°F).
The perfect water temperature of 27°C (80.6°F) with 44.8mm (1.76") of accumulated rainfall and only 3.7 rainfall days, makes April a great period for swimming and other water activities.

Temperature

In Cozumel, the average high-temperature in April is relatively the same as in March - a still tropical 32°C (89.6°F). The average low-temperature, in April, is 21.8°C (71.2°F).

Heat index

The average heat index is appraised at a scorching 43.9°C (111°F). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'real feel', or 'felt air temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like differences in body mass, height, and shape, pregnancy, metabolic differences, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

March and April, with an average relative humidity of 79%, are the least humid months in Cozumel.

Rainfall

In Cozumel, in April, it is raining for 3.7 days, with typically 44.8mm (1.76") of accumulated precipitation. In Cozumel, during the entire year, the rain falls for 119.9 days and collects up to 1489.9mm (58.66") of precipitation.

Sea temperature

In Cozumel, the average seawater temperature in April is 27°C (80.6°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 Cozumel, Mexico, the average length of the day is 12.6h.

Sunshine

With an average of 8.6h of sunshine, April has the most sunshine of the year in Cozumel, Mexico.

UV index

April through August, with an average maximum UV index of 12, are months with the highest UV index in Cozumel, Mexico. A UV Index of 11, and more, symbolizes an extreme health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 12 in April interpret into the following advice:
Take all necessary precautions, as unprotected skin 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. 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. 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.
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FAQ

What is the temperature in April in Cozumel?

The average high-temperature, in April, in Cozumel, is 32°C (89.6°F), while the average low-temperature is 21.8°C (71.2°F). In April, the average heat index (a.k.a. 'feels like', 'apparent temperature'), that combines relative humidity and air temperature, is calculated to 43.9°C (111°F).

What is the least humid month 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 April in Cozumel?

The average relative humidity in April is 79%.

How many days does it rain in April in Cozumel?

In Cozumel, in April, during 3.7 rainfall days, 44.8mm (1.76") of precipitation is typically accumulated.

How warm is the water in April in Cozumel?

In Cozumel, in April, the average water temperature is 27°C (80.6°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 Cozumel have in April?

The average length of the day in April in Cozumel is 12.6h.

What month has the most sunshine in Cozumel?

With an average of 8.6h of sunshine, April has the most sunshine of the year in Cozumel.

How long on average sun shines in April in Cozumel?

In April, the average sunshine in Cozumel, Mexico, is 8.6h.

What are the months with the highest UV index in Cozumel?

April through August, with an average maximum UV index of 12, are months with the highest UV index in Cozumel.

What is the UV index reading in April in Cozumel?

The average daily maximum UV index in April in Cozumel is 12. A UV Index of 11, and more, symbolizes an excessive health risk from the exposure to the Sun's UV rays.

Average temperature in April
Cozumel, Mexico

Average temperature in April - Cozumel, Mexico
  • Average high temperature in April: 32°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 April: 21.8°C

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

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Average humidity in April
Cozumel, Mexico

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

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

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Average rainfall in April
Cozumel, Mexico

Average rainfall in April - Cozumel, Mexico
  • Average rainfall in April: 44.8mm

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

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Average rainfall days in April
Cozumel, Mexico

Average rainfall days in April - Cozumel, Mexico
  • Average rainfall days in April: 3.7 days

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

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Average sea temperature in April
Cozumel, Mexico

Average sea temperature in April - Cozumel, Mexico
  • Average sea temperature in April: 27°C

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

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Average daylight in April /
Average sunshine in April
Cozumel, Mexico

Average daylight in April / Average sunshine in April - Cozumel, Mexico
  • Average daylight in April: 12.6h

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 April: 8.6h

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

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Average UV index in April
Cozumel, Mexico

Average UV index in April - Cozumel, Mexico
  • Average UV index in April: 12

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).

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