January weather forecast
Trindade, São Tomé and Príncipe

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Weather in January

The year begins in São Tomé and Príncipe with sultry temperatures and high humidity. Characterized by frequent showers with an average rainfall of 130mm (5.12"), the conditions in January can rightly be called a tropical wet period. Strong winds that average a speed of 11.1km/h (6.9mph) are also common in this period. The tendency for expansive cloud cover also remains high during the month. With higher temperatures towards the day's end, it is advised to schedule outdoor activities during the mornings.

Temperature

Trindade's January showcases an average high-temperature of a still moderately hot 28°C (82.4°F), hardly distinct from December's 27.5°C (81.5°F). Trindade experiences an average nighttime temperature of 27°C (80.6°F) in January, reflecting a minor difference from the day's peak.

Heat index

In January, the heat index is calculated to be a tropical 32°C (89.6°F). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.
When referencing the heat index, its values are suitable for shady environments and light breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

In Trindade, the average relative humidity in January is 77%.

Rainfall

In Trindade, in January, during 27.1 rainfall days, 130mm (5.12") of precipitation is typically accumulated. In Trindade, during the entire year, the rain falls for 241.7 days and collects up to 1287mm (50.67") of precipitation.

Daylight

In Trindade, the average length of the day in January is 12h and 7min.
On the first day of the month, sunrise is at 05:33 and sunset at 17:39. On the last day of January, sunrise is at 05:43 and sunset at 17:49 GMT.

Sunshine

In Trindade, the average sunshine in January is 8.3h.

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 of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 7 in January translates into these instructions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.

Frequently asked questions

Is it hot during January?

An average high-temperature, in January, in Trindade, is 28°C (82.4°F) and the average low-temperature is 27°C (80.6°F). In January, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 32°C (89.6°F).

What is the average humidity in January?

In January, the average relative humidity is 77%.

How many days does it rain in January?

In January, the rain falls for 27.1 days. Throughout January, 130mm (5.12") of precipitation is accumulated.

How many hours of daylight does Trindade have in January?

In January, the average day length is 12h and 7min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 05:33 and sunset at 17:39. On the last day of the month, sunrise is at 05:43 and sunset at 17:49 GMT.

How long on average sun shines in January?

In January, the average sunshine duration is 8.3h.

What is the month with the highest UV index?

The months with the highest UV index are January through May, October through December, with an average maximum UV index of 7.

What is the UV index reading in January?

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

Average temperature in January
Trindade, São Tomé and Príncipe

Average temperature in January - Trindade, São Tomé and Príncipe
  • Average high temperature in January: 28°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 January: 27°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 January
Trindade, São Tomé and Príncipe

Average pressure in January - Trindade, São Tomé and Príncipe
  • Average pressure in January: 1010.7mbar

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 January
Trindade, São Tomé and Príncipe

Average wind speed in January - Trindade, São Tomé and Príncipe
  • Average wind speed in January: 11.1km/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 January
Trindade, São Tomé and Príncipe

Average humidity in January - Trindade, São Tomé and Príncipe
  • Average humidity in January: 77%

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 January
Trindade, São Tomé and Príncipe

Average rainfall in January - Trindade, São Tomé and Príncipe
  • Average rainfall in January: 130mm

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

Average rainfall days in January
Trindade, São Tomé and Príncipe

Average rainfall days in January - Trindade, São Tomé and Príncipe
  • Average rainfall days in January: 27.1 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 January /
Average sunshine in January
Trindade, São Tomé and Príncipe

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

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

  • Average sunshine in January: 8h and 2min

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 January
Trindade, São Tomé and Príncipe

Average sunshine days in January - Trindade, São Tomé and Príncipe
  • Average sunshine days in January: 3.1 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 January
Trindade, São Tomé and Príncipe

Average UV index in January - Trindade, São Tomé and Príncipe
  • Average UV index in January: 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 January
Trindade, São Tomé and Príncipe

Average cloud cover in January - Trindade, São Tomé and Príncipe
  • Average cloud cover in January: 38

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 January
Trindade, São Tomé and Príncipe

Average visibility in January - Trindade, São Tomé and Príncipe
  • Average visibility in January: 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).

Trindade, São Tomé and Príncipe

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