May weather forecast
Henrique, São Tomé and Príncipe

May carries the first signs of change to the weather in Henrique. Noticeably cooler than the preceding four months, May exhibits a dip in average high temperature to approximately 27.8°C (82°F). Coupled with these more manageable heat levels, the frequency of rainy days tapers somewhat, providing respite. An uptick of the annual daylight hours enriches the weather experience, despite a marginal decrease in blazing sunshine hours. In essence, May acts as a bridge between the initial, hotter part of the year and the slightly cooler, more settled months to follow.

Temperature

The initiation of May records an average high-temperature of a still moderately hot 27.8°C (82°F), displaying a near consistency with the previous month. Henrique's May nights demonstrate minimal variation from the daytime temperatures, with an average of 26.3°C (79.3°F).

Heat index

For May, the heat index is calculated to be a tropical 31°C (87.8°F). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.

Humidity

The average relative humidity in May is 79%.

Rainfall

In May, in Henrique, São Tomé and Príncipe, the rain falls for 20.5 days. Throughout May, 122mm (4.8") of precipitation is accumulated. Throughout the year, there are 241.7 rainfall days, and 1287mm (50.67") of precipitation is accumulated.

Daylight

In May, the average length of the day in Henrique, São Tomé and Príncipe, is 12h and 7min.
On the first day of the month, sunrise is at 05:27 and sunset at 17:34. On the last day of May, sunrise is at 05:27 and sunset at 17:35 GMT.

Sunshine

The average sunshine in May in Henrique is 7.6h.

UV index

The months with the highest UV index are January through May, October through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 during May translates into the following directions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.