December weather forecastTswiza, Zimbabwe

December

Weather in December

December, the first month of the summer in Tswiza, is also a hot month, with temperature in the range of an average high of 33.2°C (91.8°F) and an average low of 21.7°C (71.1°F).

Temperature

With the onset of December, a modest change to a still tropical 33.2°C (91.8°F) from November's 33.3°C (91.9°F) is noted in high-temperature. Tswiza observes an average nighttime temperature of 21.7°C (71.1°F) during December.

Heat index

In December, the average heat index is estimated at a blistering 41°C (105.8°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The average relative humidity in December in Tswiza is 63%.

Rainfall

In Tswiza, in December, it is raining for 15.6 days, with typically 100mm (3.94") of accumulated precipitation. Throughout the year, there are 126.2 rainfall days, and 438mm (17.24") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 13h and 24min of daylight.
On the first day of the month, sunrise is at 05:01 and sunset at 18:23. On the last day of December, sunrise is at 05:13 and sunset at 18:40 CAT.

Sunshine

The average sunshine in December in Tswiza is 9.7h.

UV index

The months with the highest UV index are January, October through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index, 7 during December, leads to the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.

Frequently asked questions

The average high-temperature, in December, in Tswiza, is 33.2°C (91.8°F), while the average low-temperature is 21.7°C (71.1°F). In December, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is estimated at 41°C (105.8°F).

The average relative humidity in December is 63%.

In Tswiza, in December, it is raining for 15.6 days, with typically 100mm (3.94") of accumulated precipitation.

The month with the longest days is December, with an average of 13h and 24min of daylight.

The average day length in December is 13h and 26min.

In December, on the first day of the month, sunrise is at 05:01 and sunset at 18:23. On the last day of the month, sunrise is at 05:13 and sunset at 18:40 CAT.

In Tswiza, the average sunshine duration in December is 9.7h.

The months with the highest UV index in Tswiza are January, October through December, with an average maximum UV index of 7.

In December, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health risk 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Tswiza, Zimbabwe

  • Average high temperature in December: 33.2°C

The warmest month (with the highest average high temperature) is November (33.3°C).
The month with the lowest average high temperature is July (25.2°C).

  • Average low temperature in December: 21.7°C

The month with the highest average low temperature is December (21.7°C).
The coldest month (with the lowest average low temperature) is July (12.6°C).

Average pressure in December
Tswiza, Zimbabwe

  • Average pressure in December: 1011.9mbar

The month with the highest atmospheric pressure is July (1023.1mbar).
The month with the lowest atmospheric pressure is January (1011.3mbar).

Average wind speed in December
Tswiza, Zimbabwe

  • Average wind speed in December: 9.8km/h

The windiest month (with the highest average wind speed) is October (11.8km/h).
The calmest month (with the lowest average wind speed) is May (6.2km/h).

Average humidity in December
Tswiza, Zimbabwe

  • Average humidity in December: 63%

The months with the highest relative humidity are January, February and March (72%).
The month with the lowest relative humidity is September (45%).

Average rainfall in December
Tswiza, Zimbabwe

  • Average rainfall in December: 100mm

The wettest month (with the highest rainfall) is January (105mm).
The driest months (with the least rainfall) are June and August (3mm).

Average rainfall days in December
Tswiza, Zimbabwe

  • Average rainfall days in December: 15.6 days

The month with the highest number of rainy days is January (19.6 days).
The month with the least rainy days is August (4.1 days).

Average daylight in December /
Average sunshine in December
Tswiza, Zimbabwe

  • Average daylight in December: 13h and 24min

The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 48min).

  • Average sunshine in December: 9h and 42min

The month with the most sunshine is November (Average sunshine: 10h and 0min).
The month with the least sunshine is April (Average sunshine: 6h and 6min).

Average sunshine days in December
Tswiza, Zimbabwe

  • Average sunshine days in December: 12.6 days

The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is February (8.8 days).

Average UV index in December
Tswiza, Zimbabwe

  • Average UV index in December: 7

The months with the highest UV index are January, October, November and December (UV index 7).
The months with the lowest UV index are May and June (UV index 5).

Average cloud cover in December
Tswiza, Zimbabwe

  • Average cloud cover in December: 37

The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in December
Tswiza, Zimbabwe

  • Average visibility in December: 9km

The months with the highest visibility are June, July, August, September, October and November (10km).
The month with the lowest visibility is January (8km).