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
With the arrival of December, Hirimbura's average high-temperature registers at a still moderately hot 28.9°C (84°F), indicating a subtle variation from the previous month. Hirimbura registers a subtle dip to an average of 24.8°C (76.6°F) during the nights of December.Heat index
The heat index for December is estimated at a tropical 34°C (93.2°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humidity
In Hirimbura, the average relative humidity in December is 79%.Rainfall
In December, in Hirimbura, the rain falls for 22.1 days. Throughout December, 114mm (4.49") of precipitation is accumulated. Throughout the year, in Hirimbura, Sri Lanka, there are 287.3 rainfall days, and 2026mm (79.76") of precipitation is accumulated.Daylight
With an average of 11h and 48min of daylight, December has the shortest days of the year in Hirimbura.On the first day of December in Hirimbura, sunrise is at 06:04 and sunset at 17:52. On the last day of the month, sunrise is at 06:18 and sunset at 18:05 +0530.
Sunshine
The month with the least sunshine is December, with an average of 7h of sunshine.UV index
The months with the highest UV index in Hirimbura, Sri Lanka, are January through April, June through August, October through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 7 in December translates into these instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Hirimbura in December?
What is the average humidity in December in Hirimbura?
How many days does it rain in December in Hirimbura?
What is the month with the shortest days in Hirimbura?
What is the average length of the day in December in Hirimbura?
What time are sunrise and sunset in December in Hirimbura?
What is the month with the least sunshine in Hirimbura?
How many hours of sunshine does Hirimbura have in December?
When is the highest UV index in Hirimbura?
How high is the UV index in December in Hirimbura?
Average temperature in December
Hirimbura, Sri Lanka
- Average high temperature in December: 28.9°C
The warmest months (with the highest average high temperature) are March and April (30.3°C).
The months with the lowest average high temperature are August and September (28.3°C).
- Average low temperature in December: 24.8°C
The month with the highest average low temperature is May (26.7°C).
The coldest month (with the lowest average low temperature) is January (24°C).
Average pressure in December
Hirimbura, Sri Lanka
- Average pressure in December: 1010.2mbar
The month with the highest atmospheric pressure is January (1011.4mbar).
The month with the lowest atmospheric pressure is May (1008.9mbar).
Average wind speed in December
Hirimbura, Sri Lanka
- Average wind speed in December: 9.4km/h
The windiest month (with the highest average wind speed) is June (20.2km/h).
The calmest month (with the lowest average wind speed) is January (7.8km/h).
Average humidity in December
Hirimbura, Sri Lanka
- Average humidity in December: 79%
The months with the highest relative humidity are June and September (82%).
The months with the lowest relative humidity are February and March (77%).
Average rainfall in December
Hirimbura, Sri Lanka
- Average rainfall in December: 114mm
The wettest month (with the highest rainfall) is May (302mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in December
Hirimbura, Sri Lanka
- Average rainfall days in December: 22.1 days
The month with the highest number of rainy days is June (28 days).
The month with the least rainy days is January (14.8 days).
Average daylight in December /
Average sunshine in December
Hirimbura, Sri Lanka
- Average daylight in December: 11h and 5min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 48min).
- Average sunshine in December: 7h and 0min
The month with the most sunshine is April (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in December
Hirimbura, Sri Lanka
- Average sunshine days in December: 6.4 days
The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is June (1 days).
Average UV index in December
Hirimbura, Sri Lanka
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, June, July, August, October, November and December (UV index 7).
The months with the lowest UV index are May and September (UV index 6).
Average cloud cover in December
Hirimbura, Sri Lanka
- Average cloud cover in December: 38
The month with the most cloud cover is September (Cloud cover 52).
The month with the least cloud cover is February (Cloud cover 26).
Average visibility in December
Hirimbura, Sri Lanka
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, June and December (10km).
The months with the lowest visibility are May, July, August, September, October and November (9km).
