December weather forecastNiripola, Sri Lanka
December
Weather in December
December, the first month of the winter in Niripola, is still a warm month, with an average temperature ranging between max 29.9°C (85.8°F) and min 23.7°C (74.7°F).Temperature
December observes an average high-temperature of a moderately hot 29.9°C (85.8°F), marking an insignificant difference from November's 30.1°C (86.2°F). Niripola experiences a mean low-temperature of 23.7°C (74.7°F) during December.Heat index
During December, the heat index is estimated at a very hot 37°C (98.6°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly critical for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
In Niripola, Sri Lanka, the average relative humidity in December is 79%.Rainfall
In Niripola, in December, it is raining for 21.1 days, with typically 148mm (5.83") of accumulated precipitation. Throughout the year, in Niripola, there are 289.4 rainfall days, and 2262mm (89.06") of precipitation is accumulated.Daylight
The month with the shortest days is December, with an average of 11h and 42min of daylight.On the first day of the month, sunrise is at 06:06 and sunset at 17:51. On the last day of December, sunrise is at 06:20 and sunset at 18:04 +0530.
Sunshine
In December, the average sunshine in Niripola is 6.9h.UV index
January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Niripola. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 7 in December leads to these guidelines:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Niripola, Sri Lanka
- Average high temperature in December: 29.9°C
The warmest months (with the highest average high temperature) are March and April (31.8°C).
The months with the lowest average high temperature are July and August (28.9°C).
- Average low temperature in December: 23.7°C
The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is January (23.1°C).
Average pressure in December
Niripola, Sri Lanka
- Average pressure in December: 1010.4mbar
The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).
Average wind speed in December
Niripola, Sri Lanka
- Average wind speed in December: 11.5km/h
The windiest month (with the highest average wind speed) is June (15.1km/h).
The calmest month (with the lowest average wind speed) is March (8km/h).
Average humidity in December
Niripola, Sri Lanka
- Average humidity in December: 79%
The months with the highest relative humidity are June, July and August (83%).
The months with the lowest relative humidity are January and February (74%).
Average rainfall in December
Niripola, Sri Lanka
- Average rainfall in December: 148mm
The wettest month (with the highest rainfall) is June (341mm).
The driest month (with the least rainfall) is January (40mm).
Average rainfall days in December
Niripola, Sri Lanka
- Average rainfall days in December: 21.1 days
The month with the highest number of rainy days is August (30.2 days).
The month with the least rainy days is January (11.6 days).
Average daylight in December /
Average sunshine in December
Niripola, Sri Lanka
- Average daylight in December: 11h and 42min
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 42min).
- Average sunshine in December: 6h and 54min
The month with the most sunshine is January (Average sunshine: 9h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days in December
Niripola, Sri Lanka
- Average sunshine days in December: 8.3 days
The month with the most sunshine days is January (17.2 days).
The months with the least sunshine days are June and August (0.3 days).
Average UV index in December
Niripola, Sri Lanka
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, July, September, November and December (UV index 7).
The months with the lowest UV index are May, June, August and October (UV index 6).
Average cloud cover in December
Niripola, Sri Lanka
- Average cloud cover in December: 38
The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 24).
Average visibility in December
Niripola, Sri Lanka
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are May, June, July, August, September, October and November (9km).
