December weather forecast
Hamilton, Sierra Leone

December

Weather in December

The first month of the winter, December, is still a hot month in Hamilton, Sierra Leone, with an average temperature fluctuating between 31°C (87.8°F) and 24.5°C (76.1°F).

Temperature

With the transition into December, Hamilton notes an average high-temperature of a still tropical 31°C (87.8°F), closely resembling November. The nighttime temperature in Hamilton dips to a warm 24.5°C (76.1°F) on average during December.

Heat index

The heat index value during December is estimated at a sweltering 37°C (98.6°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The average relative humidity in December is 69%.

Rainfall

In Hamilton, Sierra Leone, in December, it is raining for 4 days, with typically 7mm (0.28") of accumulated precipitation. Throughout the year, there are 205.9 rainfall days, and 1507mm (59.33") of precipitation is accumulated.

Daylight

With an average of 11h and 36min of daylight, December has the shortest days of the year.
On the first day of December in Hamilton, sunrise is at 06:51 and sunset at 18:32. On the last day of the month, sunrise is at 07:06 and sunset at 18:45 GMT.

Sunshine

The average sunshine in December is 9.7h.

UV index

January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index in Hamilton, Sierra Leone. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 7 in December translates into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

How hot is December in Hamilton?
In Hamilton, 31°C (87.8°F) is the average high-temperature and 24.5°C (76.1°F) is the average low-temperature during December. In December, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is estimated at 37°C (98.6°F).
What is the average humidity in December in Hamilton?
The average relative humidity in December is 69%.
How many days does it rain in December in Hamilton?
In Hamilton, in December, it is raining for 4 days, with typically 7mm (0.28") of accumulated precipitation.
What is the month with the shortest days in Hamilton?
The month with the shortest days in Hamilton, Sierra Leone, is December, with an average of 11h and 36min of daylight.
What is the average length of the day in December in Hamilton?
In December, the average day length in Hamilton is 11h and 39min.
When is the sunrise / sunset in December in Hamilton?
In December, on the first day of the month, sunrise is at 06:51 and sunset at 18:32. On the last day of the month, in Hamilton, sunrise is at 07:06 and sunset at 18:45 GMT.
How long on average sun shines in December in Hamilton?
The average sunshine duration in December is 9.7h.
When is the highest UV index in Hamilton?
The months with the highest UV index are January through June, September through December, with an average maximum UV index of 7.
How high is the UV index in December in Hamilton?
The average daily maximum UV index in December in Hamilton, Sierra Leone, 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 December - Hamilton, Sierra Leone
Average temperature in December
Hamilton, Sierra Leone
  • Average high temperature in December: 31°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 December: 24.5°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 December - Hamilton, Sierra Leone
Average pressure in December
Hamilton, Sierra Leone
  • Average pressure in December: 1011.1mbar

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 December - Hamilton, Sierra Leone
Average wind speed in December
Hamilton, Sierra Leone
  • Average wind speed in December: 7.6km/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 December - Hamilton, Sierra Leone
Average humidity in December
Hamilton, Sierra Leone
  • Average humidity in December: 69%

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

Average rainfall in December - Hamilton, Sierra Leone
Average rainfall in December
Hamilton, Sierra Leone
  • Average rainfall in December: 7mm

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

Average rainfall days in December - Hamilton, Sierra Leone
Average rainfall days in December
Hamilton, Sierra Leone
  • Average rainfall days in December: 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 December / Average sunshine in December - Hamilton, Sierra Leone
Average daylight in December /
Average sunshine in December
Hamilton, Sierra Leone
  • Average daylight in December: 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 36min).

  • Average sunshine in December: 9h and 4min

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 December - Hamilton, Sierra Leone
Average sunshine days in December
Hamilton, Sierra Leone
  • Average sunshine days in December: 25.5 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 December - Hamilton, Sierra Leone
Average UV index in December
Hamilton, Sierra Leone
  • Average UV index in December: 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 December - Hamilton, Sierra Leone
Average cloud cover in December
Hamilton, Sierra Leone
  • Average cloud cover in December: 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 December - Hamilton, Sierra Leone
Average visibility in December
Hamilton, Sierra Leone
  • Average visibility in December: 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).

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