May weather forecast
Madalena, São Tomé and Príncipe

May

Weather in May

As Madalena advances into May, weather exhibits a perceptible shift towards cooler temperatures. The rain showers are ever-present; yet, they don't overshadow the city's captivating allure. Even though sunlight hours dwindle, the ambiance never falls short of its usual vivacity. Winds increase their speed and the cloud cover expands more when compared with April's weather, contributing to the overall cooler atmosphere. The omnipresent tropical warmth does not depart completely, subtly reminding of the city's climatic heritage.

Temperature

As Madalena welcomes May, the average high-temperature stabilizes at a still warm 27.8°C (82°F), showing little deviation from April's 28.6°C (83.5°F). Madalena indicates a consistently low-temperature of 26.3°C (79.3°F) during the nights of May.

Heat index

In May, the average heat index is calculated to be a tropical 31°C (87.8°F). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.
Remember that heat index calculations are made for conditions in the shade with light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially vital to children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.

Humidity

The average relative humidity in May is 79%.

Rainfall

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

Daylight

In Madalena, 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 Madalena, sunrise is at 05:26 and sunset at 17:35 GMT.

Sunshine

In Madalena, the average sunshine in May is 7.6h.

UV index

January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 7 during May translates into the following directions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.

Frequently asked questions

What are May temperatures in Madalena?
The average high-temperature and low-temperature during May are 27.8°C (82°F) and 26.3°C (79.3°F) respectively. In May, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 31°C (87.8°F).
What is the average humidity in May in Madalena?
In Madalena, the average relative humidity in May is 79%.
How much does it rain in Madalena in May?
In Madalena, during May, the rain falls for 20.5 days and regularly aggregates up to 122mm (4.8") of precipitation.
What is the average length of the day in May in Madalena?
In Madalena, the average day length in May is 12h and 8min.
When are sunrise and sunset in May in Madalena?
In May, on the first day of the month, sunrise is at 05:26 and sunset at 17:34. On the last day of the month, sunrise is at 05:26 and sunset at 17:35 GMT.
How long on average sun shines in May in Madalena?
The average sunshine duration in May in Madalena, São Tomé and Príncipe, is 7.6h.
What is the month with the highest UV index in Madalena?
January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index in Madalena.
What is the UV index reading in May in Madalena?
In Madalena, the average daily maximum UV index in May is 7. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May - Madalena, São Tomé and Príncipe
Average temperature in May
Madalena, São Tomé and Príncipe
  • Average high temperature in May: 27.8°C

The warmest month (with the highest average high temperature) is March (28.8°C).
The month with the lowest average high temperature is July (24.5°C).

  • Average low temperature in May: 26.3°C

The month with the highest average low temperature is March (27.5°C).
The coldest month (with the lowest average low temperature) is July (23°C).

Average pressure in May - Madalena, São Tomé and Príncipe
Average pressure in May
Madalena, São Tomé and Príncipe
  • Average pressure in May: 1011.3mbar

The month with the highest atmospheric pressure is July (1014.3mbar).
The month with the lowest atmospheric pressure is February (1009.8mbar).

Average wind speed in May - Madalena, São Tomé and Príncipe
Average wind speed in May
Madalena, São Tomé and Príncipe
  • Average wind speed in May: 13km/h

The windiest month (with the highest average wind speed) is July (17.7km/h).
The calmest month (with the lowest average wind speed) is December (10.8km/h).

Average humidity in May - Madalena, São Tomé and Príncipe
Average humidity in May
Madalena, São Tomé and Príncipe
  • Average humidity in May: 79%

The months with the highest relative humidity are August, September and October (83%).
The month with the lowest relative humidity is March (76%).

Average rainfall in May - Madalena, São Tomé and Príncipe
Average rainfall in May
Madalena, São Tomé and Príncipe
  • Average rainfall in May: 122mm

The wettest month (with the highest rainfall) is November (224mm).
The driest month (with the least rainfall) is July (9mm).

Average rainfall days in May - Madalena, São Tomé and Príncipe
Average rainfall days in May
Madalena, São Tomé and Príncipe
  • Average rainfall days in May: 20.5 days

The month with the highest number of rainy days is December (28.6 days).
The month with the least rainy days is June (7.3 days).

Average daylight in May / Average sunshine in May - Madalena, São Tomé and Príncipe
Average daylight in May /
Average sunshine in May
Madalena, São Tomé and Príncipe
  • Average daylight in May: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 6min).
The month with the shortest days is December (Average daylight: 12h and 6min).

  • Average sunshine in May: 7h and 4min

The month with the most sunshine is February (Average sunshine: 8h and 36min).
The month with the least sunshine is August (Average sunshine: 5h and 0min).

Average sunshine days in May - Madalena, São Tomé and Príncipe
Average sunshine days in May
Madalena, São Tomé and Príncipe
  • Average sunshine days in May: 9.2 days

The month with the most sunshine days is June (16.4 days).
The month with the least sunshine days is December (1.5 days).

Average UV index in May - Madalena, São Tomé and Príncipe
Average UV index in May
Madalena, São Tomé and Príncipe
  • Average UV index in May: 7

The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 5).

Average cloud cover in May - Madalena, São Tomé and Príncipe
Average cloud cover in May
Madalena, São Tomé and Príncipe
  • Average cloud cover in May: 44

The month with the most cloud cover is August (Cloud cover 65).
The month with the least cloud cover is February (Cloud cover 37).

Average visibility in May - Madalena, São Tomé and Príncipe
Average visibility in May
Madalena, São Tomé and Príncipe
  • Average visibility in May: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).

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