June weather forecast
Santo Antonio, São Tomé and Príncipe

June welcomes a noticeable shift in Santo Antonio's weather. Rainfall significantly recedes to 89mm (3.5"), suggesting the advent of more comfortable conditions. Compared to the rainier May, June emerges warmer and drier. An average sea temperature from 27°C (80.6°F) to 29°C (84.2°F) ensures swimmers and divers have a pleasant time. Despite the transition towards drier weather, the UV index remains high, reinforcing the need for sun protection.

Temperature

As June unfolds in Santo Antonio, the average high-temperature reaches a still warm 27.6°C (81.7°F), hinting at a slight fluctuation from the previous month. In Santo Antonio, the average temperature during the nights of June drops to a pleasant 20.7°C (69.3°F).

Heat index

In June, the average heat index is computed to be a tropical 32°C (89.6°F). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
For clarity, heat index numbers account for light winds and areas under shade. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

June through August, with an average relative humidity of 83%, are the least humid months.

Rainfall

In Santo Antonio, in June, it is raining for 7 days, with typically 89mm (3.5") of accumulated precipitation. In Santo Antonio, during the entire year, the rain falls for 188 days and collects up to 1872mm (73.7") of precipitation.

Sea temperature

In Santo Antonio, in June, the average water temperature is 27°C (80.6°F).
Note: In water temperatures ranging between 25°C (77°F) and 29°C (84.2°F), activities such as swimming and diving become highly pleasurable for long durations.

Daylight

With an average of 12h and 12min of daylight, June has the longest days of the year.
On the first day of June in Santo Antonio, sunrise is at 05:21 and sunset at 17:34. On the last day of the month, sunrise is at 05:27 and sunset at 17:40 GMT.

Sunshine

The months with the most sunshine in Santo Antonio are January through June, November and December, with an average of 4h of sunshine.

UV index

The months with the lowest UV index are June, July and December, with an average maximum UV index of 11. A UV Index of 11, and more, symbolizes an ultimate health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 11 during June translates into the following guidance:
Ensure every key safety measure. People with light skin might sustain burns in fewer than 5 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Even under cloud cover, use sunscreen with at least an SPF 30 generously and reapply frequently post every swim or outdoor exercise. Attention! UV strength is notably upped by the reflection of sand and water.