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

April weather forecast and climate
Chetumal, Mexico

April, like March, is another tropical spring month in Chetumal, Mexico, with average temperature ranging between min 23.7°C (74.7°F) and max 32.1°C (89.8°F).
The ideal sea water temperature of 27.6°C (81.7°F) and only 3.8 rainfall days, with 36.4mm (1.4") of accumulated rainfall, make April the best time for swimming and other water activities.

Temperature

In Chetumal, the average high-temperature in April is relatively the same as in March - a still hot 32.1°C (89.8°F). The average low-temperature, is 23.7°C (74.7°F).

Heat index

In April, the average heat index is estimated at an extremely hot 41.8°C (107.2°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. 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 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, wind, differences in body mass, height, and shape). 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through 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 surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The least humid month is April, with an average relative humidity of 73%.

Rainfall

In Chetumal, in April, it is raining for 3.8 days, with typically 36.4mm (1.4") of accumulated precipitation. In Chetumal, during the entire year, the rain falls for 123 days and collects up to 1307.6mm (51.5") of precipitation.

Sea temperature

In Chetumal, in April, the average water temperature is 27.6°C (81.7°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 Chetumal, the average length of the day in April is 12.6h.

Sunshine

April has the most sunshine of the year in Chetumal, with an average of 9.1h of sunshine.

UV index

Months with the highest UV index are March through September, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme threat to health from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 12 in April transform into the following instructions:
Practice all essential precautions. Protection against sun damage is crucial. 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. 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. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in April in Chetumal?

In April, in Chetumal, the average high-temperature is 32.1°C (89.8°F), and the average low-temperature is 23.7°C (74.7°F). In April, the average heat index (a.k.a. 'real feel', 'feels like'), that represents influence of the relative humidity to air temperaure, is evaluated at 41.8°C (107.2°F).

What is the least humid month in Chetumal?

With an average relative humidity of 73%, April is the least humid month.

What is the average humidity in April in Chetumal?

In April, the average relative humidity in Chetumal is 73%.

How much does it rain in Chetumal in April?

In Chetumal, during April, the rain falls for 3.8 days and regularly aggregates up to 36.4mm (1.4") of precipitation.

What is the sea water temperature in April in Chetumal?

In April, the average sea temperature in Chetumal is 27.6°C (81.7°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 April in Chetumal?

In April, the average length of the day in Chetumal is 12.6h.

What month has the most sunshine in Chetumal?

April has the most sunshine of the year, with an average of 9.1h of sunshine.

How many hours of sunshine does Chetumal have in April?

The average sunshine in April in Chetumal is 9.1h.

What is the month with the highest UV index in Chetumal?

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

What is the UV index intensity in April in Chetumal?

In Chetumal, the average daily maximum UV index in April is 12. A UV Index of 11, and more, symbolizes an extreme health threat from unprotected exposure to the UV radiation.
Average temperature in April - Chetumal, Mexico
  • Average high temperature in April: 32.1°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 April: 23.7°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 April - Chetumal, Mexico
  • Average humidity in April: 73%

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 April - Chetumal, Mexico
  • Average rainfall in April: 36.4mm

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 April - Chetumal, Mexico
  • Average rainfall days in April: 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 April - Chetumal, Mexico
  • Average sea temperature in April: 27.6°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 April / Average sunshine in April - Chetumal, Mexico
  • Average daylight in April: 12.6h

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 April: 9.1h

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 April - Chetumal, Mexico
  • Average UV index in April: 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).