June weather forecast
São Tomé, São Tomé and Príncipe

Transitioning into June, São Tomé encounters the force of nature in its full swing. With the largest temperature drop of the year, the temperature ranges from 21.4°C (70.5°F) to 28°C (82.4°F), which is noticeable but not severe. Despite the mellowing heat, this month is not devoid of light due to stable sunshine hours. It marks the shift in seasonal cycle, providing a respite with lower rainfall and refreshing sea breezes.

Temperature

The beginning of June reveals an average high-temperature of a still warm 28°C (82.4°F), showing minimal deviation from the previous month. June brings with it a nighttime average temperature of 21.4°C (70.5°F) in São Tomé.

Heat index

For June, the heat index is estimated at a tropical 32°C (89.6°F). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.
Note that heat index values are valued for light wind and location in the shade. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

In São Tomé, the average relative humidity in June is 79%.

Rainfall

June is the last month it rains. During 3 rainfall days, in June, São Tomé aggregates 19mm (0.75") of precipitation. Throughout the year, there are 94 rainfall days, and 885mm (34.84") of precipitation is accumulated.

Sea temperature

In São Tomé, the average seawater temperature in June is 26°C (78.8°F).
Note: Swimming, diving, and other water activities in the temperature range of 25°C (77°F) to 29°C (84.2°F) are perceived as very enjoyable and comfortable for prolonged durations.

Daylight

With an average of 12h and 6min of daylight, June has the longest days of the year.
On the first day of June, sunrise is at 05:26 and sunset at 17:35. On the last day of the month, sunrise is at 05:32 and sunset at 17:41 GMT.

Sunshine

June has the most sunshine of the year, with an average of 5.5h of sunshine.

UV index

In São Tomé, the average daily maximum UV index in June is 11. A UV Index value of 11, and more, symbolizes an extreme health hazard from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 11 in June suggests the following recommendations:
Take all necessary precautions, as unprotected skin can burn in minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Regardless of cloud cover, it's recommended to apply generously and reapply often a sunscreen with an SPF of at least 30, especially after swimming or any outdoor activity. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.