January weather forecast
Boa Entrada, São Tomé and Príncipe

January

Weather in January

January, the same as December, is a moderately hot winter month in Boa Entrada, São Tomé and Príncipe, with an average temperature varying between 27°C (80.6°F) and 28°C (82.4°F).

Temperature

January's climate shows a minor adjustment in average high-temperatures to a still warm 28°C (82.4°F) from December's 27.5°C (81.5°F). The January average low temperature in Boa Entrada, marginally lower than the daytime high, records at a still moderately hot 27°C (80.6°F).

Heat index

Throughout January, the heat index is calculated to be a hot 32°C (89.6°F). If one remains active during constant exposure, it might cause exhaustion and heat cramps.
Given the heat index, its values are aligned with shaded sites and gentle winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

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

Rainfall

In Boa Entrada, São Tomé and Príncipe, during January, the rain falls for 27.1 days and regularly aggregates up to 130mm (5.12") of precipitation. In Boa Entrada, during the entire year, the rain falls for 241.7 days and collects up to 1287mm (50.67") of precipitation.

Daylight

In January, the average length of the day in Boa Entrada is 12h and 6min.
On the first day of January, 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.

Sunshine

In Boa Entrada, the average sunshine in January is 8.3h.

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 vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, an average UV index of 7 transforms into the following instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

Is it hot in Boa Entrada during January?
January temperatures in Boa Entrada, São Tomé and Príncipe, vary between a high-temperature of 28°C (82.4°F) and a low-temperature of 27°C (80.6°F). In January, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 32°C (89.6°F).
What is the average humidity in January in Boa Entrada?
The average relative humidity in January is 77%.
How many days does it rain in January in Boa Entrada?
In Boa Entrada, São Tomé and Príncipe, during January, the rain falls for 27.1 days and regularly aggregates up to 130mm (5.12") of precipitation.
What is the average length of the day in January in Boa Entrada?
In January, the average day length is 12h and 6min.
When are sunrise and sunset in January in Boa Entrada?
On the first day of January, 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 Boa Entrada?
In January, the average sunshine duration in Boa Entrada, São Tomé and Príncipe, is 8.3h.
What is the month with the highest UV index in Boa Entrada?
The months with the highest UV index in Boa Entrada, São Tomé and Príncipe, are January through May, October through December, with an average maximum UV index of 7.
How high is the UV index in January in Boa Entrada?
In Boa Entrada, São Tomé and Príncipe, the average daily maximum UV index in January is 7. A UV Index reading of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
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 January
Boa Entrada, 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
Boa Entrada, 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
Boa Entrada, 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
Boa Entrada, 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
Boa Entrada, 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
Boa Entrada, 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
Boa Entrada, 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 December (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
Boa Entrada, 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
Boa Entrada, 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
Boa Entrada, 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
Boa Entrada, 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).

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