January weather forecast
Waterloo, Sierra Leone

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Weather in January

January in Waterloo, Sierra Leone, welcomes the New Year with one of the lowest levels of rainfall, measuring a mere 2mm (0.08"). Enjoy the outdoors as days are filled with ample sunshine, lasting 9.8 hours, and relatively low cloud coverage. Gentle breezes create a pleasant atmosphere, enhancing the overall weather experience. Though the start of the year sees lower rainfall, the average relative humidity levels remain somewhat high. As the month progresses, anticipate slight changes leading to February’s weather conditions.

Temperature

Waterloo records the warmest temperatures in January, averaging a high of 31.4°C (88.5°F) and a low of 24.1°C (75.4°F).

Heat index

Throughout January, the heat index is calculated to be a sweltering 38°C (100.4°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Heat index evaluations are typically in the context of light winds and shaded environments. 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 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

January is the least humid month, with an average relative humidity of 68%.

Rainfall

In Waterloo, during January, the rain falls for 1.4 days and regularly aggregates up to 2mm (0.08") of precipitation. In Waterloo, during the entire year, the rain falls for 205.9 days and collects up to 1507mm (59.33") of precipitation.

Daylight

In January, the average length of the day is 11h and 42min.
On the first day of January, sunrise is at 07:06 and sunset at 18:45. On the last day of the month, sunrise is at 07:12 and sunset at 18:58 GMT.

Sunshine

In Waterloo, the average sunshine in January is 9.8h.

UV index

January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index in Waterloo. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 7 in January transforms into this advice:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

What month is the hottest in Waterloo?

Waterloo's January weather, marked by an average high temperature of 31.4°C (88.5°F) and an average low temperature of 24.1°C (75.4°F), is the warmest in the year.

How hot is January in Waterloo?

During January, Waterloo experiences an average high-temperature of 31.4°C (88.5°F) and a low-temperature of 24.1°C (75.4°F). In January, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 38°C (100.4°F).

What is the least humid month in Waterloo?

The least humid month in Waterloo is January, with an average relative humidity of 68%.

What is the average humidity in January in Waterloo?

In Waterloo, the average relative humidity in January is 68%.

How many days does it rain in January in Waterloo?

In Waterloo, Sierra Leone, during January, the rain falls for 1.4 days and regularly aggregates up to 2mm (0.08") of precipitation.

What is the average length of the day in January in Waterloo?

In Waterloo, the average day length in January is 11h and 42min.

When is the sunrise / sunset in January in Waterloo?

In January, on the first day of the month, sunrise is at 07:06 and sunset at 18:45. On the last day of the month, in Waterloo, sunrise is at 07:12 and sunset at 18:58 GMT.

How many hours of sunshine does Waterloo have in January?

The average sunshine duration in January in Waterloo, Sierra Leone, is 9.8h.

What is the month with the highest UV index in Waterloo?

January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index in Waterloo, Sierra Leone.

What is the UV index reading in January in Waterloo?

In January, the average daily maximum UV index in Waterloo, Sierra Leone, is 7. A UV Index of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.

Average temperature in January
Waterloo, Sierra Leone

Average temperature in January - Waterloo, Sierra Leone
  • Average high temperature in January: 31.4°C

The warmest month (with the highest average high temperature) is January (31.4°C).
The month with the lowest average high temperature is August (27.3°C).

  • Average low temperature in January: 24.1°C

The month with the highest average low temperature is May (26.2°C).
The coldest month (with the lowest average low temperature) is August (23.9°C).

Average pressure in January
Waterloo, Sierra Leone

Average pressure in January - Waterloo, Sierra Leone
  • Average pressure in January: 1011.2mbar

The month with the highest atmospheric pressure is July (1013.8mbar).
The months with the lowest atmospheric pressure are February and March (1010.4mbar).

Average wind speed in January
Waterloo, Sierra Leone

Average wind speed in January - Waterloo, Sierra Leone
  • Average wind speed in January: 9.3km/h

The windiest month (with the highest average wind speed) is August (12km/h).
The calmest month (with the lowest average wind speed) is November (6.8km/h).

Average humidity in January
Waterloo, Sierra Leone

Average humidity in January - Waterloo, Sierra Leone
  • Average humidity in January: 68%

The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is January (68%).

Average rainfall in January
Waterloo, Sierra Leone

Average rainfall in January - Waterloo, Sierra Leone
  • Average rainfall in January: 2mm

The wettest month (with the highest rainfall) is August (391mm).
The driest month (with the least rainfall) is February (1mm).

Average rainfall days in January
Waterloo, Sierra Leone

Average rainfall days in January - Waterloo, Sierra Leone
  • Average rainfall days in January: 1.4 days

The month with the highest number of rainy days is July (30.3 days).
The month with the least rainy days is February (0.8 days).

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

Average daylight in January / Average sunshine in January - Waterloo, Sierra Leone
  • Average daylight in January: 11h and 4min

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 5min

The month with the most sunshine is February (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 4h and 48min).

Average sunshine days in January
Waterloo, Sierra Leone

Average sunshine days in January - Waterloo, Sierra Leone
  • Average sunshine days in January: 29 days

The month with the most sunshine days is January (29 days).
The month with the least sunshine days is August (0.5 days).

Average UV index in January
Waterloo, Sierra Leone

Average UV index in January - Waterloo, Sierra Leone
  • Average UV index in January: 7

The months with the highest UV index are January, February, March, April, May, June, September, October, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 6).

Average cloud cover in January
Waterloo, Sierra Leone

Average cloud cover in January - Waterloo, Sierra Leone
  • Average cloud cover in January: 12

The month with the most cloud cover is August (Cloud cover 67).
The month with the least cloud cover is February (Cloud cover 11).

Average visibility in January
Waterloo, Sierra Leone

Average visibility in January - Waterloo, Sierra Leone
  • Average visibility in January: 10km

The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).

Waterloo, Sierra Leone

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