December weather forecastHatton, Sri Lanka
December
Weather in December
December's weather is cooler, marking the transition into Hatton's dryer season. The rainfall decreases from 416mm (16.38") in November to 228mm (8.98"), almost half the amount. This drop in rainfall is synonymous with clearer skies, which produce enchanting mornings illuminated by sunshine. As it is a holiday season, the lesser rainfall transforms December into an opportune time to explore the hilly city. One can enjoy pleasant morning walks or visit the local tea plantations under December's cool and welcoming weather.Temperature
December, known for its average high temperature of 24.3°C (75.7°F) and an average low temperature of 17°C (62.6°F), is the coldest month in Hatton.Humidity
In Hatton, the average relative humidity in December is 88%.Rainfall
In Hatton, in December, during 25.4 rainfall days, 228mm (8.98") of precipitation is typically accumulated. Throughout the year, in Hatton, there are 297.4 rainfall days, and 2784mm (109.61") of precipitation is accumulated.Daylight
The month with the shortest days in Hatton is December, with an average of 11h and 42min of daylight.On the first day of December in Hatton, sunrise is at 06:04 and sunset at 17:49. On the last day of the month, sunrise is at 06:18 and sunset at 18:02 +0530.
Sunshine
The month with the least sunshine is December, with an average of 4.6h of sunshine.UV index
January, October through December, with an average maximum UV index of 5, are months with the lowest UV index in Hatton. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In December, a regular UV index of 5 translates into these guidelines:
Guard yourself - Precautionary measures against sun damage are advocated. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hatton, Sri Lanka
- Average high temperature in December: 24.3°C
The warmest month (with the highest average high temperature) is April (27.6°C).
The month with the lowest average high temperature is December (24.3°C).
- Average low temperature in December: 17°C
The month with the highest average low temperature is May (19.1°C).
The coldest month (with the lowest average low temperature) is February (15.3°C).
Average pressure in December
Hatton, Sri Lanka
- Average pressure in December: 1010.4mbar
The month with the highest atmospheric pressure is January (1011.7mbar).
The month with the lowest atmospheric pressure is June (1008.3mbar).
Average wind speed in December
Hatton, Sri Lanka
- Average wind speed in December: 5km/h
The windiest month (with the highest average wind speed) is June (9.1km/h).
The calmest month (with the lowest average wind speed) is April (3.3km/h).
Average humidity in December
Hatton, Sri Lanka
- Average humidity in December: 88%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is March (80%).
Average rainfall in December
Hatton, Sri Lanka
- Average rainfall in December: 228mm
The wettest month (with the highest rainfall) is October (656mm).
The driest month (with the least rainfall) is January (85mm).
Average rainfall days in December
Hatton, Sri Lanka
- Average rainfall days in December: 25.4 days
The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is February (16.3 days).
Average daylight in December /
Average sunshine in December
Hatton, 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: 4h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in December
Hatton, Sri Lanka
- Average sunshine days in December: 4.5 days
The month with the most sunshine days is February (11 days).
The month with the least sunshine days is May (0.8 days).
Average UV index in December
Hatton, Sri Lanka
- Average UV index in December: 5
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, October, November and December (UV index 5).
Average cloud cover in December
Hatton, Sri Lanka
- Average cloud cover in December: 62
The month with the most cloud cover is November (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 42).
Average visibility in December
Hatton, Sri Lanka
- Average visibility in December: 6km
The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are November and December (6km).
