May weather forecast
Bela Vista, São Tomé and Príncipe

The climate of Bela Vista, São Tomé, and Príncipe in May undergoes noticeable changes. Winds intensify compared to preceding months, surging to 13km/h (8.1mph), tempering the prevalent high temperatures. Consequentially, the tropical ambiance of the region transitions smoothly toward the mid-year period dominated by slightly enhanced cloud coverage at 44%. On the contrary, rainfall diminishes slightly, signifying a necessary shift in the weather pattern. Yet, despite these atmospheric modifications, the UV index remains at 7, frequently necessitating sun protection.

Temperature

Welcoming May, Bela Vista notes an average high-temperature of a still warm 27.8°C (82°F), nearly consistent with April's 28.6°C (83.5°F). Bela Vista records a slight downturn in temperature to an average of 26.3°C (79.3°F) during May nights.

Heat index

The average heat index in May is evaluated at a hot 31°C (87.8°F). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.
Always consider that heat index estimations are for light winds and places in the shade. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.

Humidity

In Bela Vista, São Tomé and Príncipe, the average relative humidity in May is 79%.

Rainfall

In May, the rain falls for 20.5 days. Throughout May, 122mm (4.8") of precipitation is accumulated. In Bela Vista, during the entire year, the rain falls for 241.7 days and collects up to 1287mm (50.67") of precipitation.

Daylight

In Bela Vista, the average length of the day in May is 12h and 8min.
On the first day of the month, sunrise is at 05:26 and sunset at 17:34. On the last day of May, in Bela Vista, sunrise is at 05:26 and sunset at 17:35 GMT.

Sunshine

In Bela Vista, the average sunshine in May is 7.6h.

UV index

The months with the highest UV index in Bela Vista 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 hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 7 during May, leads to the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.