January weather forecast
Kohilawatta, Sri Lanka

January

Weather in January

January is a hot winter month in Kohilawatta, Sri Lanka, with an average temperature fluctuating between 30.8°C (87.4°F) and 23.1°C (73.6°F).

Temperature

Upon the onset of January, Kohilawatta witnesses an average high-temperature of a tropical 30.8°C (87.4°F), showing a close resemblance to the prior month. Throughout January, an average low-temperature of 23.1°C (73.6°F) is experienced.

Heat index

The heat index in January is appraised at a very hot 38°C (100.4°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

The months with the lowest humidity are January and February, with an average relative humidity of 74%.

Rainfall

The month with the least rainfall is January, when the rain falls for 11.6 days and typically collects 40mm (1.57") of precipitation.

Daylight

In Kohilawatta, the average length of the day in January is 11h and 46min.
On the first day of the month, sunrise is at 06:21 and sunset at 18:05. On the last day of January, sunrise is at 06:28 and sunset at 18:18 +0530.

Sunshine

The month with the most sunshine is January, with an average of 9.1h of sunshine.

UV index

The months with the highest UV index are January through April, July, September, November and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 7 in January interprets into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

Frequently asked questions

How hot does it get in Kohilawatta in January?
January temperatures vary between a high-temperature of 30.8°C (87.4°F) and a low-temperature of 23.1°C (73.6°F). In January, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is appraised at 38°C (100.4°F).
What is the least humid month in Kohilawatta?
January and February, with an average relative humidity of 74%, are the least humid months.
What is the average humidity in January in Kohilawatta?
In January, the average relative humidity in Kohilawatta, Sri Lanka, is 74%.
What is the driest month in Kohilawatta?
The month with the least rainfall is January, when the rain falls for 11.6 days and typically collects 40mm (1.57") of precipitation.
How many days does it rain in January in Kohilawatta?
In January, in Kohilawatta, the rain falls for 11.6 days. Throughout January, 40mm (1.57") of precipitation is accumulated.
What is the average length of the day in January in Kohilawatta?
In January, the average day length in Kohilawatta is 11h and 46min.
When is the sunrise / sunset in January in Kohilawatta?
On the first day of January in Kohilawatta, sunrise is at 06:21 and sunset at 18:05. On the last day of the month, sunrise is at 06:28 and sunset at 18:18 +0530.
What month has the most sunshine in Kohilawatta?
With an average of 9.1h of sunshine, January has the most sunshine of the year.
How many hours of sunshine does Kohilawatta have in January?
In Kohilawatta, the average sunshine duration in January is 9.1h.
When is the highest UV index in Kohilawatta?
January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Kohilawatta.
What is the UV index intensity in January in Kohilawatta?
The average daily maximum UV index in January is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January
Kohilawatta, Sri Lanka
  • Average high temperature in January: 30.8°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 January: 23.1°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 January
Kohilawatta, Sri Lanka
  • Average pressure in January: 1011.6mbar

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 January
Kohilawatta, Sri Lanka
  • Average wind speed in January: 12.8km/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 January
Kohilawatta, Sri Lanka
  • Average humidity in January: 74%

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 January
Kohilawatta, Sri Lanka
  • Average rainfall in January: 40mm

The wettest month (with the highest rainfall) is June (341mm).
The driest month (with the least rainfall) is January (40mm).

Average rainfall days in January
Kohilawatta, Sri Lanka
  • Average rainfall days in January: 11.6 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 January /
Average sunshine in January
Kohilawatta, Sri Lanka
  • Average daylight in January: 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 42min).

  • Average sunshine in January: 9h and 1min

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 January
Kohilawatta, Sri Lanka
  • Average sunshine days in January: 17.2 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 January
Kohilawatta, Sri Lanka
  • Average UV index in January: 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 January
Kohilawatta, Sri Lanka
  • Average cloud cover in January: 24

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 January
Kohilawatta, Sri Lanka
  • Average visibility in January: 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).

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