January weather forecast
Madalena, São Tomé and Príncipe

January

Weather in January

The New Year in Madalena, São Tomé and Príncipe greets the locals and visitors with stable tropical conditions. The mild seawater breezes often culminate in gentle rainfall, creating a refreshing paradox against the consistently warm temperatures. Despite the abundant rain showers with 130mm (5.12") of rain spread across approximately 27.1 days, the city doesn't lose its charm. However, careful planning is advisable to navigate through the habitual weather mood swings. Post rainfall, the atmosphere turns significantly clearer, providing ample scope to admire the city's grandeur.

Temperature

The introduction of January in Madalena notes a subtle temperature variation to a still moderately hot 28°C (82.4°F) from December's 27.5°C (81.5°F). Madalena observes a consistent average low-temperature of 27°C (80.6°F) throughout January nights.

Heat index

During January, the heat index is calculated to be a hot 32°C (89.6°F). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.
In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in January is 77%.

Rainfall

In Madalena, during January, the rain falls for 27.1 days and regularly aggregates up to 130mm (5.12") of precipitation. Throughout the year, there are 241.7 rainfall days, and 1287mm (50.67") of precipitation is accumulated.

Daylight

In January, the average length of the day is 12h and 7min.
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 January, the average sunshine in Madalena 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 reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: An average UV index of 7 in January transforms into this advice:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. 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. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.

Frequently asked questions

How hot does it get in Madalena in January?
During January, Madalena experiences an average high-temperature of 28°C (82.4°F) and a low-temperature of 27°C (80.6°F). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in January is calculated to be 32°C (89.6°F).
What is the average humidity in January in Madalena?
In January, the average relative humidity in Madalena, São Tomé and Príncipe, is 77%.
How many days does it rain in January in Madalena?
In January, in Madalena, the rain falls for 27.1 days. Throughout January, 130mm (5.12") of precipitation is accumulated.
What is the average length of the day in January in Madalena?
In Madalena, São Tomé and Príncipe, the average day length in January is 12h and 7min.
What time are sunrise and sunset in January in Madalena?
On the first day of January in Madalena, 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 many hours of sunshine does Madalena have in January?
The average sunshine duration in January in Madalena, São Tomé and Príncipe, is 8.3h.
What are the months with the highest UV index in Madalena?
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 intensity in January in Madalena?
In Madalena, the average daily maximum UV index in January is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's 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 - Madalena, São Tomé and Príncipe
Average temperature in January
Madalena, 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 - Madalena, São Tomé and Príncipe
Average pressure in January
Madalena, 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 - Madalena, São Tomé and Príncipe
Average wind speed in January
Madalena, 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 - Madalena, São Tomé and Príncipe
Average humidity in January
Madalena, 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 - Madalena, São Tomé and Príncipe
Average rainfall in January
Madalena, 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 - Madalena, São Tomé and Príncipe
Average rainfall days in January
Madalena, 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 - Madalena, São Tomé and Príncipe
Average daylight in January /
Average sunshine in January
Madalena, 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 - Madalena, São Tomé and Príncipe
Average sunshine days in January
Madalena, 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 - Madalena, São Tomé and Príncipe
Average UV index in January
Madalena, 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 - Madalena, São Tomé and Príncipe
Average cloud cover in January
Madalena, 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 - Madalena, São Tomé and Príncipe
Average visibility in January
Madalena, 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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