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
December
Weather in December
Temperature
Hulangamuwa's coldest weather arrives in December, when temperatures average a high of 28.6°C (83.5°F) and a low of 20.4°C (68.7°F).Heat index
In December, the average heat index is calculated to be a tropical 34°C (93.2°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important 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
With an average relative humidity of 83%, December is the most humid month in Hulangamuwa, Sri Lanka.Rainfall
In Hulangamuwa, in December, it is raining for 20.9 days, with typically 113mm (4.45") of accumulated precipitation. In Hulangamuwa, during the entire year, the rain falls for 218.8 days and collects up to 1175mm (46.26") of precipitation.Daylight
With an average of 11h and 42min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 06:05 and sunset at 17:48. On the last day of the month, sunrise is at 06:19 and sunset at 18:01 +0530.
Sunshine
December has the least sunshine of the year, with an average of 5.7h of sunshine.UV index
January, February, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 6 during December leads to these instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Hulangamuwa?
How hot does it get in Hulangamuwa in December?
What is the most humid month in Hulangamuwa?
What is the average humidity in December in Hulangamuwa?
How many days does it rain in December in Hulangamuwa?
What is the month with the shortest days in Hulangamuwa?
How many hours of daylight does Hulangamuwa have in December?
What time are sunrise and sunset in December in Hulangamuwa?
What is the month with the least sunshine in Hulangamuwa?
How many hours of sunshine does Hulangamuwa have in December?
What is the month with the lowest UV index in Hulangamuwa?
How high is the UV index in December in Hulangamuwa?
Average temperature in December
Hulangamuwa, Sri Lanka
- Average high temperature in December: 28.6°C
The warmest month (with the highest average high temperature) is April (32.9°C).
The month with the lowest average high temperature is December (28.6°C).
- Average low temperature in December: 20.4°C
The month with the highest average low temperature is May (23°C).
The coldest month (with the lowest average low temperature) is February (18.9°C).
Average pressure in December
Hulangamuwa, Sri Lanka
- Average pressure in December: 1010.5mbar
The month with the highest atmospheric pressure is January (1011.9mbar).
The month with the lowest atmospheric pressure is June (1007.9mbar).
Average wind speed in December
Hulangamuwa, Sri Lanka
- Average wind speed in December: 7.8km/h
The windiest month (with the highest average wind speed) is June (16.5km/h).
The calmest month (with the lowest average wind speed) is April (5.6km/h).
Average humidity in December
Hulangamuwa, Sri Lanka
- Average humidity in December: 83%
The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is March (72%).
Average rainfall in December
Hulangamuwa, Sri Lanka
- Average rainfall in December: 113mm
The wettest month (with the highest rainfall) is October (267mm).
The driest month (with the least rainfall) is June (29mm).
Average rainfall days in December
Hulangamuwa, Sri Lanka
- Average rainfall days in December: 20.9 days
The month with the highest number of rainy days is April (24.7 days).
The month with the least rainy days is February (11.8 days).
Average daylight in December /
Average sunshine in December
Hulangamuwa, Sri Lanka
- 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 42min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
Hulangamuwa, Sri Lanka
- Average sunshine days in December: 8.2 days
The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is April (4 days).
Average UV index in December
Hulangamuwa, Sri Lanka
- Average UV index in December: 6
The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, October, November and December (UV index 6).
Average cloud cover in December
Hulangamuwa, Sri Lanka
- Average cloud cover in December: 46
The months with the most cloud cover are November and December (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 24).
Average visibility in December
Hulangamuwa, Sri Lanka
- 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, November and December (8km).
