June weather forecast and climate
Havana, Cuba

The front yard of the Gran Teatro in Havana, Cuba, with a display of colored vintage cars
The front yard of the Gran Teatro in Havana, Cuba, with a display of colored vintage cars
The first month of the summer, June, is a hot month in Havana, Cuba, with average temperature fluctuating between 23.4°C (74.1°F) and 30.5°C (86.9°F).

Temperature

In Havana, the average high-temperature is practically the same as in May - a hot 30.5°C (86.9°F). In June, the average low-temperature is 23.4°C (74.1°F).

Heat index

The average heat index in June is calculated to a sweltering 38.3°C (100.9°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
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 'feels like', 'felt air temperature', 'apparent temperature', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like activity, metabolic differences, wind, and pregnancy affect individual temperature impact. 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 especially crucial for babies and toddlers. 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. 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 Havana, Cuba, the average relative humidity is 77%.

Rainfall

The month with the most rainfall in Havana is June when the rain falls for 10 days and typically aggregates up to 182.3mm (7.18") of precipitation.

Sea temperature

In June, the average sea temperature in Havana is 28.7°C (83.7°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

June has the longest days of the year, with an average of 13.5h of daylight.

Sunshine

In Havana, the average sunshine is 8h.

UV index

Months with the highest UV index in Havana, Cuba, are April through June, 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 the ordinary person.
Note: In June, the average maximum UV index of 12 translate into the following recommendations:
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. 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. 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 strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in June in Havana?

In Havana, Cuba, in June, the average high-temperature is 30.5°C (86.9°F), and the average low-temperature is 23.4°C (74.1°F). In June, the average heat index (a.k.a. 'apparent temperature', 'feels like'), that combines air temperature and relative humidity, is appraised at 38.3°C (100.9°F).

What is the average humidity in June in Havana?

In Havana, Cuba, the average relative humidity in June is 77%.

How many days does it rain in June in Havana?

In Havana, in June, during 10 rainfall days, 182.3mm (7.18") of precipitation is typically accumulated.

What is the rainiest month in Havana?

June is the month with the most rainfall in Havana, Cuba. Rain falls for 10 days and accumulates 182.3mm (7.18") of precipitation.

How warm is the water in June in Havana?

In June, the average sea temperature is 28.7°C (83.7°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.

When are the longest days in Havana?

June has the longest days of the year in Havana, with an average of 13.5h of daylight.

What is the average length of the day in June in Havana?

In June, the average length of the day is 13.5h.

How many hours of sunshine does Havana have in June?

The average sunshine in June in Havana, Cuba, is 8h.

When is the highest UV index in Havana?

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

What is the UV index reading in June in Havana?

In Havana, Cuba, the average daily maximum UV index in June is 12. A UV Index reading of 11, and higher, represents an ultimate hazard to health from the exposure to the Sun's UV rays.
Average temperature in June - Havana, Cuba
  • Average high temperature in June: 30.5°C

The warmest month (with the highest average high temperature) is August (31.6°C).
The month with the lowest average high temperature is January (25.8°C).

  • Average low temperature in June: 23.4°C

The month with the highest average low temperature is August (24.1°C).
The coldest months (with the lowest average low temperature) are January and February (18.6°C).

Average humidity in June - Havana, Cuba
  • Average humidity in June: 77%

The month with the highest relative humidity is October (80%).
The month with the lowest relative humidity is April (72%).

Average rainfall in June - Havana, Cuba
  • Average rainfall in June: 182.3mm

The wettest month (with the highest rainfall) is June (182.3mm).
The driest month (with the least rainfall) is March (46.2mm).

Average rainfall days in June - Havana, Cuba
  • Average rainfall days in June: 10 days

The month with the highest number of rainy days is October (11 days).
Months with the least rainy days are March and April (3 days).

Average sea temperature in June - Havana, Cuba
  • Average sea temperature in June: 28.7°C

The best month for swimming (with the highest average sea temperature) is August (30.2°C).
The coldest month (with the lowest average sea temperature) is January (24.7°C).

Average daylight in June / Average sunshine in June - Havana, Cuba
  • Average daylight in June: 13.5h

The month with the longest days is June (Average daylight: 13.5h).
The month with the shortest days is December (Average daylight: 10.7h).

  • Average sunshine in June: 8h

The month with the most sunshine is September (Average sunshine: 10h).
Months with the least sunshine are January, February, November and December (Average sunshine: 7).

Average UV index in June - Havana, Cuba
  • Average UV index in June: 12

Months with the highest UV index are April, May and June (UV index 12).
Months with the lowest UV index are January and December (UV index 6).