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

July 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
July, like June, is another tropical summer month in Cozumel, Mexico, with average temperature fluctuating between 32.6°C (90.7°F) and 23.5°C (74.3°F).

Temperature

In Cozumel, the average high-temperature is almost the same as in June - a still hot 32.6°C (90.7°F). In Cozumel, Mexico, the average low-temperature is 23.5°C (74.3°F).

Heat index

In July, the average heat index is estimated at a life-threatening hot 48.5°C (119.3°F). Be wary - heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like metabolic differences, clothing, differences in body mass, height, and shape, 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. 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. Excessive warmth is eliminated from the body by evaporation of sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in Cozumel is 84%.

Rainfall

In Cozumel, Mexico, during July, the rain falls for 11.8 days and regularly aggregates up to 115.5mm (4.5") of precipitation. Throughout the year, in Cozumel, Mexico, there are 119.9 rainfall days, and 1489.9mm (58.7") of precipitation is accumulated.

Sea temperature

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

In Cozumel, the average length of the day in July is 13.2h.

Sunshine

In July, the average sunshine is 7.1h.

UV index

Months with the highest UV index are April through August, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme threat to health from unsafe exposure to the UV radiation for average individuals.
Note: In July, the average maximum UV index of 12 translate into the following recommendations:
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. 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. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in July in Cozumel?

In Cozumel, Mexico, in July, the average high-temperature is 32.6°C (90.7°F), and the average low-temperature is 23.5°C (74.3°F). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), that factores the actual air temperature with the relative humidity, is appraised at 48.5°C (119.3°F).

What is the average humidity in July in Cozumel?

The average relative humidity in July in Cozumel is 84%.

How much does it rain in Cozumel in July?

In Cozumel, Mexico, in July, during 11.8 rainfall days, 115.5mm (4.5") of precipitation is typically accumulated.

What months are the sea warmest in Cozumel?

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

How warm is the water in July in Cozumel?

In Cozumel, the average seawater temperature in July 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 Cozumel have in July?

In Cozumel, the average length of the day in July is 13.2h.

How many hours of sunshine does Cozumel have in July?

The average sunshine in July in Cozumel is 7.1h.

What is the month 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.

What is the UV index reading in July in Cozumel?

The average daily maximum UV index in July in Cozumel, Mexico, is 12. 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 July - Cozumel, Mexico
  • Average high temperature in July: 32.6°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 July: 23.5°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 July - Cozumel, Mexico
  • Average humidity in July: 84%

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

Average rainfall in July - Cozumel, Mexico
  • Average rainfall in July: 115.5mm

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 July - Cozumel, Mexico
  • Average rainfall days in July: 11.8 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 July - Cozumel, Mexico
  • Average sea temperature in July: 29°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 July / Average sunshine in July - Cozumel, Mexico
  • Average daylight in July: 13.2h

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 July: 7.1h

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 July - Cozumel, Mexico
  • Average UV index in July: 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).