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

October 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
October, like September, is another tropical autumn month in Cozumel, Mexico, with temperature in the range of an average high of 30.7°C (87.3°F) and an average low of 23.1°C (73.6°F).

Temperature

In October, the average high-temperature is relatively the same as in September - a still hot 30.7°C (87.3°F). In Cozumel, in October, the average low-temperature is 23.1°C (73.6°F).

Heat index

In October, the average heat index is evaluated at a scorching 41.6°C (106.9°F). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
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 a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like clothing, wind, pregnancy, 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. 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

The average relative humidity in Cozumel is 85%.

Rainfall

October is the month with the most rainfall. Rain falls for 15.7 days and accumulates 242.5mm (9.5") of precipitation.

Sea temperature

Months with the warmest seawater in Cozumel 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, Mexico, the average length of the day in October is 11.7h.

Sunshine

The average sunshine in October is 6.2h.

UV index

In Cozumel, the average daily maximum UV index is 9. A UV Index value of 8 to 10 symbolizes a very high health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: In October, the average maximum UV index of 9 translate into the following recommendations:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 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. 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. 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 October in Cozumel?

The average high-temperature, in October, in Cozumel, Mexico, is 30.7°C (87.3°F), while the average low-temperature is 23.1°C (73.6°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), that takes the relative humidity and factores it into the air temperature reading, in October is calculated to 41.6°C (106.9°F).

What is the average humidity in October in Cozumel?

In Cozumel, Mexico, the average relative humidity in October is 85%.

How many days does it rain in October in Cozumel?

In Cozumel, in October, during 15.7 rainfall days, 242.5mm (9.5") of precipitation is typically accumulated.

What is the rainiest month in Cozumel?

October is the month with the most rainfall. Rain falls for 15.7 days and accumulates 242.5mm (9.5") of precipitation.

When is 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.

What is the water temperature in October in Cozumel?

In Cozumel, in October, the average water temperature 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.

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

The average length of the day in October in Cozumel is 11.7h.

How many hours of sunshine does Cozumel have in October?

In October, the average sunshine is 6.2h.

What is the UV index intensity in October in Cozumel?

In Cozumel, Mexico, the average daily maximum UV index in October is 9. A UV Index value of 8 to 10 symbolizes a very high health threat from the exposure to the Sun's UV radiation.
Average temperature in October - Cozumel, Mexico
  • Average high temperature in October: 30.7°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 October: 23.1°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 October - Cozumel, Mexico
  • Average humidity in October: 85%

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

Average rainfall in October - Cozumel, Mexico
  • Average rainfall in October: 242.5mm

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 October - Cozumel, Mexico
  • Average rainfall days in October: 15.7 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 October - Cozumel, Mexico
  • Average sea temperature in October: 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 October / Average sunshine in October - Cozumel, Mexico
  • Average daylight in October: 11.7h

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 October: 6.2h

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 October - Cozumel, Mexico
  • Average UV index in October: 9

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).