January weather forecastMendewa, Sierra Leone

January

Weather in January

January, like December, is another tropical winter month in Mendewa, Sierra Leone, with an average temperature fluctuating between 20.1°C (68.2°F) and 34.8°C (94.6°F).

Temperature

Mendewa greets January with an average high-temperature of a still tropical 34.8°C (94.6°F), marking a slight deviation from the preceding month. Mendewa sees a consistent average low-temperature of 20.1°C (68.2°F) in January, indicating a substantial decrease from the day's temperature.

Heat index

Throughout January, the heat index is calculated to be a blazing hot 48°C (118.4°F). Be prepared: Heat cramps and heat exhaustion are probable. Continued activity may lead to heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in January is 67%.

Rainfall

The month with the least rainfall is January, when the rain falls for 4.3 days and typically collects 5mm (0.2") of precipitation.

Daylight

The average length of the day in January is 11h and 43min.
On the first day of the month, sunrise is at 06:59 and sunset at 18:39. On the last day of January, sunrise is at 07:05 and sunset at 18:52 GMT.

Sunshine

With an average of 9.6h of sunshine, January has the most sunshine of the year.

UV index

The months with the highest UV index are January through April, November and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, the UV index of 7 transforms into the following advice:
Guard against overexposure. Protection from sun-induced harm is essential. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.

Updated: Jul 1, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in January, in Mendewa, is 34.8°C (94.6°F), while the low-temperature averages to 20.1°C (68.2°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 48°C (118.4°F).

The average relative humidity in January is 67%.

The month with the least rainfall is January, when the rain falls for 4.3 days and typically collects 5mm (0.2") of precipitation.

In Mendewa, during January, the rain falls for 4.3 days and regularly aggregates up to 5mm (0.2") of precipitation.

The average day length in January is 11h and 43min.

On the first day of January, sunrise is at 06:59 and sunset at 18:39. On the last day of the month, sunrise is at 07:05 and sunset at 18:52 GMT.

January has the most sunshine of the year, with an average of 9.6h of sunshine.

In Mendewa, the average sunshine duration in January is 9.6h.

The months with the highest UV index are January through April, November and December, with an average maximum UV index of 7.

In Mendewa, the average daily maximum UV index in January is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

32.8°C

34.8°C

36.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

4.5km/h

5.2km/h

6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

25.3

20.4

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Mendewa, Sierra Leone

Average high temperature in January: 34.8°C

The warmest months (with the highest average high temperature) are February and March (36.8°C).
The month with the lowest average high temperature is August (27.5°C).

Average low temperature in January: 20.1°C

The month with the highest average low temperature is April (23.8°C).
The coldest month (with the lowest average low temperature) is January (20.1°C).

Average pressure in January
Mendewa, Sierra Leone

Average pressure in January: 1011.4mbar

The month with the highest atmospheric pressure is July (1014.1mbar).
The months with the lowest atmospheric pressure are February and March (1010.5mbar).

Average wind speed in January
Mendewa, Sierra Leone

Average wind speed in January: 4.5km/h

The windiest month (with the highest average wind speed) is April (5.9km/h).
The calmest month (with the lowest average wind speed) is November (3.5km/h).

Average humidity in January
Mendewa, Sierra Leone

Average humidity in January: 67%

The months with the highest relative humidity are August and September (92%).
The month with the lowest relative humidity is February (66%).

Average rainfall in January
Mendewa, Sierra Leone

Average rainfall in January: 5mm

The wettest month (with the highest rainfall) is August (341mm).
The driest month (with the least rainfall) is January (5mm).

Average rainfall days in January
Mendewa, Sierra Leone

Average rainfall days in January: 4.3 days

The month with the highest number of rainy days is August (30.5 days).
The month with the least rainy days is January (4.3 days).

Average daylight in January /
Average sunshine in January
Mendewa, Sierra Leone

Average daylight in January: 11h and 42min

The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).

Average sunshine in January: 9h and 36min

The month with the most sunshine is January (Average sunshine: 9h and 36min).
The month with the least sunshine is August (Average sunshine: 3h and 6min).

Average sunshine days in January
Mendewa, Sierra Leone

Average sunshine days in January: 25.3 days

The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is September (0.2 days).

Average UV index in January
Mendewa, Sierra Leone

Average UV index in January: 7

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

Average cloud cover in January
Mendewa, Sierra Leone

Average cloud cover in January: 23

The month with the most cloud cover is August (Cloud cover 85).
The month with the least cloud cover is January (Cloud cover 23).

Average visibility in January
Mendewa, Sierra Leone

Average visibility in January: 8km

The months with the highest visibility are February, March and April (9km).
The months with the lowest visibility are June, July, August, September, October and November (6km).