May weather forecast
Monte Rosa, São Tomé and Príncipe

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Weather in May

May's weather in Monte Rosa marks a considerable increase in relative humidity, rising to 79% compared to April's 77%. This coincides with a slightly cooler climate rendered by the elevated rainfall levels that May heralds. The rainfall and increased humidity make the cityscape lush and verdant, enhancing its tropical appeal. Even amidst the showers, the UV index remains steady at 7, inviting travellers looking for indoor activities. A study of patterns from May to June points to an anticipated decrease in the average temperature and an upsurge in wind speed.

Temperature

In May, Monte Rosa experiences a minor shift in meteorological conditions with average high-temperatures marked at a still moderately hot 27.8°C (82°F), closely mirroring the climate in April. Monte Rosa notes a consistent average low-temperature of 26.3°C (79.3°F) during May nights.

Heat index

May's heat index is computed to be a hot 31°C (87.8°F). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

The average relative humidity in May in Monte Rosa is 79%.

Rainfall

In Monte Rosa, during May, the rain falls for 20.5 days and regularly aggregates up to 122mm (4.8") of precipitation. In Monte Rosa, during the entire year, the rain falls for 241.7 days and collects up to 1287mm (50.67") of precipitation.

Daylight

The average length of the day in May in Monte Rosa 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, in Monte Rosa, sunrise is at 05:27 and sunset at 17:35 GMT.

Sunshine

In May, the average sunshine is 7.6h.

UV index

The months with the highest UV index in Monte Rosa are January through May, October through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: A daily high UV index of 7 in May leads to these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Frequently asked questions

What is the usual temperature for Monte Rosa in May?

The average high-temperature and low-temperature during May are 27.8°C (82°F) and 26.3°C (79.3°F) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in May is computed to be 31°C (87.8°F).

What is the average humidity in May in Monte Rosa?

The average relative humidity in May is 79%.

How many days does it rain in May in Monte Rosa?

In Monte Rosa, São Tomé and Príncipe, in May, it is raining for 20.5 days, with typically 122mm (4.8") of accumulated precipitation.

What is the average length of the day in May in Monte Rosa?

In Monte Rosa, São Tomé and Príncipe, the average day length in May is 12h and 7min.

When is the sunrise / sunset in May in Monte Rosa?

On the first day of May in Monte Rosa, sunrise is at 05:27 and sunset at 17:34. On the last day of the month, sunrise is at 05:27 and sunset at 17:35 GMT.

How many hours of sunshine does Monte Rosa have in May?

The average sunshine duration in May in Monte Rosa is 7.6h.

When is the highest UV index in Monte Rosa?

The months with the highest UV index in Monte Rosa, São Tomé and Príncipe, are January through May, October through December, with an average maximum UV index of 7.

What is the UV index intensity in May in Monte Rosa?

In May, the average daily maximum UV index in Monte Rosa, São Tomé and Príncipe, is 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to Sun's UV rays.

Average temperature in May
Monte Rosa, São Tomé and Príncipe

Average temperature in May - Monte Rosa, 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).

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Average pressure in May
Monte Rosa, São Tomé and Príncipe

Average pressure in May - Monte Rosa, 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).

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Average wind speed in May
Monte Rosa, São Tomé and Príncipe

Average wind speed in May - Monte Rosa, 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).

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Average humidity in May
Monte Rosa, São Tomé and Príncipe

Average humidity in May - Monte Rosa, 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%).

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Average rainfall in May
Monte Rosa, São Tomé and Príncipe

Average rainfall in May - Monte Rosa, 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).

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Average rainfall days in May
Monte Rosa, São Tomé and Príncipe

Average rainfall days in May - Monte Rosa, 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).

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Average daylight in May /
Average sunshine in May
Monte Rosa, São Tomé and Príncipe

Average daylight in May / Average sunshine in May - Monte Rosa, 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 October (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).

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Average sunshine days in May
Monte Rosa, São Tomé and Príncipe

Average sunshine days in May - Monte Rosa, 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).

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Average UV index in May
Monte Rosa, São Tomé and Príncipe

Average UV index in May - Monte Rosa, 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).

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Average cloud cover in May
Monte Rosa, São Tomé and Príncipe

Average cloud cover in May - Monte Rosa, 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).

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Average visibility in May
Monte Rosa, São Tomé and Príncipe

Average visibility in May - Monte Rosa, 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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Monte Rosa, São Tomé and Príncipe

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