Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
With an average high-temperature of 29.1°C (84.4°F) and an average low-temperature of 18.8°C (65.8°F), December is the warmest month.Heat index
For most parts of December, the heat index is appraised at a tropical 34°C (93.2°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.Evaluating the heat index requires understanding its values in the shade and with gentle winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humidity
In Ngonini, the average relative humidity in December is 76%.Rainfall
The month with the most rainfall is December, when the rain falls for 20.5 days and typically aggregates up to 94mm (3.7") of precipitation.Daylight
December has the longest days of the year in Ngonini, with an average of 13h and 42min of daylight.On the first day of December, sunrise is at 04:54 and sunset at 18:32. On the last day of the month, sunrise is at 05:05 and sunset at 18:49 SAST.
Sunshine
In December, the average sunshine is 8.7h.UV index
The months with the highest UV index in Ngonini are January through March, September through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.Note: In December, a regular UV index of 6 translates into these guidelines:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Frequently asked questions
What month is the hottest in Ngonini?
How hot is December in Ngonini?
What is the average humidity in December in Ngonini?
What is the rainiest month in Ngonini?
How much does it rain in Ngonini in December?
When are the longest days in Ngonini?
What is the average length of the day in December in Ngonini?
When is the sunrise / sunset in December in Ngonini?
How many hours of sunshine does Ngonini have in December?
When is the highest UV index in Ngonini?
What is the UV index intensity in December in Ngonini?
Average temperature in December
Ngonini, Swaziland
- Average high temperature in December: 29.1°C
The warmest month (with the highest average high temperature) is December (29.1°C).
The month with the lowest average high temperature is July (23°C).
- Average low temperature in December: 18.8°C
The months with the highest average low temperature are January and February (19°C).
The coldest month (with the lowest average low temperature) is June (10.6°C).
Average pressure in December
Ngonini, Swaziland
- Average pressure in December: 1014.1mbar
The month with the highest atmospheric pressure is July (1024.1mbar).
The month with the lowest atmospheric pressure is January (1013.7mbar).
Average wind speed in December
Ngonini, Swaziland
- Average wind speed in December: 7.1km/h
The windiest month (with the highest average wind speed) is September (8.5km/h).
The calmest months (with the lowest average wind speed) are March and May (6.4km/h).
Average humidity in December
Ngonini, Swaziland
- Average humidity in December: 76%
The months with the highest relative humidity are January, February and March (78%).
The months with the lowest relative humidity are August and September (56%).
Average rainfall in December
Ngonini, Swaziland
- Average rainfall in December: 94mm
The wettest month (with the highest rainfall) is December (94mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in December
Ngonini, Swaziland
- Average rainfall days in December: 20.5 days
The month with the highest number of rainy days is December (20.5 days).
The month with the least rainy days is June (1.8 days).
Average daylight in December /
Average sunshine in December
Ngonini, Swaziland
- Average daylight in December: 13h and 4min
The month with the longest days is December (Average daylight: 13h and 42min).
The month with the shortest days is June (Average daylight: 10h and 36min).
- Average sunshine in December: 8h and 4min
The month with the most sunshine is February (Average sunshine: 9h and 18min).
The month with the least sunshine is April (Average sunshine: 6h and 24min).
Average sunshine days in December
Ngonini, Swaziland
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is June (27.3 days).
The month with the least sunshine days is December (7.5 days).
Average UV index in December
Ngonini, Swaziland
- Average UV index in December: 6
The months with the highest UV index are January, February, March, September, October, November and December (UV index 6).
The months with the lowest UV index are April, May, June, July and August (UV index 5).
Average cloud cover in December
Ngonini, Swaziland
- Average cloud cover in December: 49
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 13).
Average visibility in December
Ngonini, Swaziland
- Average visibility in December: 8km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March and December (8km).
Ngonini, Swaziland
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