Chetumal
Mexico
Long-term weather forecast
Long-term weather forecast

March weather forecast and climate
Chetumal, Mexico

The first month of the spring, March, is a tropical month in Chetumal, Mexico, with temperature in the range of an average high of 30.7°C (87.3°F) and an average low of 21.5°C (70.7°F).
The ideal sea water temperature of 26.7°C (80.1°F) and only 3.8 rainfall days, with 26.4mm (1") 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 tropical 30.7°C (87.3°F). In Chetumal, Mexico, the average low-temperature is 21.5°C (70.7°F).

Heat index

The average heat index is estimated at a sweltering 38°C (100.4°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
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 'felt air temperature', 'real feel', 'feels like', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like pregnancy, metabolic differences, differences in body mass, height, and shape, and activity influence one's weather impression. 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 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

In Chetumal, the average relative humidity is 74%.

Rainfall

The month with the least rainfall is March when the rain falls for 3.8 days and typically collects 26.4mm (1") of precipitation.

Sea temperature

In March, the average sea temperature is 26.7°C (80.1°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

The average length of the day in Chetumal is 12.1h.

Sunshine

In Chetumal, the average sunshine in March is 8.4h.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an extreme threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 12 interpret into the following advice:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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 March in Chetumal?

In Chetumal, Mexico, in March, the average high-temperature is 30.7°C (87.3°F), and the average low-temperature is 21.5°C (70.7°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), that combines both air temperature and relative humidity, in March is estimated at 38°C (100.4°F).

What is the average humidity in March in Chetumal?

In Chetumal, Mexico, the average relative humidity in March is 74%.

How many days does it rain in March in Chetumal?

In Chetumal, in March, it is raining for 3.8 days, with typically 26.4mm (1") of accumulated precipitation.

What is the driest month in Chetumal?

The month with the least rainfall in Chetumal is March when the rain falls for 3.8 days and typically collects 26.4mm (1") of precipitation.

What is the water temperature in March in Chetumal?

In Chetumal, in March, the average water temperature is 26.7°C (80.1°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.

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

The average length of the day in March is 12.1h.

How long on average sun shines in March in Chetumal?

The average sunshine in March in Chetumal is 8.4h.

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

Months with the highest UV index are March through September, with an average maximum UV index of 12.

How high is the UV index in March in Chetumal?

In March, the average daily maximum UV index in Chetumal is 12. A UV Index estimate of 11, and higher, represents an extreme health vulnerability from unprotected exposure to the UV radiation.
Average temperature in March - Chetumal, Mexico
  • Average high temperature in March: 30.7°C

The warmest month (with the highest average high temperature) is August (32.8°C).
The month with the lowest average high temperature is January (28.5°C).

  • Average low temperature in March: 21.5°C

The month with the highest average low temperature is June (25°C).
The coldest month (with the lowest average low temperature) is January (18.3°C).

Average humidity in March - Chetumal, Mexico
  • Average humidity in March: 74%

Months with the highest relative humidity are January, October, November and December (80%).
The month with the lowest relative humidity is April (73%).

Average rainfall in March - Chetumal, Mexico
  • Average rainfall in March: 26.4mm

The wettest month (with the highest rainfall) is September (206.8mm).
The driest month (with the lowest rainfall) is March (26.4mm).

Average rainfall days in March - Chetumal, Mexico
  • Average rainfall days in March: 3.8 days

The month with the highest number of rainy days is September (15.8 days).
Months with the lowest number of rainy days are March and April (3.8 days).

Average sea temperature in March - Chetumal, Mexico
  • Average sea temperature in March: 26.7°C

The best month for swimming (with the highest average sea temperature) is September (29.7°C).
The coldest month (with the lowest average sea temperature) is January (26.2°C).

Average daylight in March / Average sunshine in March - Chetumal, Mexico
  • Average daylight in March: 12.1h

The month with the longest days is June (Average daylight: 13.2h).
The month with shortest days is December (Average daylight: 11h).

  • Average sunshine in March: 8.4h

The month with most sunshine is April (Average sunshine: 9.1h).
The month with least sunshine is December (Average sunshine: 6.6h).

Average UV index in March - Chetumal, Mexico
  • Average UV index in March: 12

Months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
Months with the lowest UV index are January, November and December (UV index 8).