January weather forecast
Ethul Kotte, Sri Lanka

January

Weather in January

January is a tropical winter month in Ethul Kotte, Sri Lanka, with an average temperature varying between 23.1°C (73.6°F) and 30.8°C (87.4°F).

Temperature

As Ethul Kotte transitions into January, the average high-temperature stands at a tropical 30.8°C (87.4°F), offering little variation from the preceding month. The low-temperature average for Ethul Kotte during January stands at a warm 23.1°C (73.6°F).

Heat index

The heat index for January is appraised at a very hot 38°C (100.4°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

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

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, in Ethul Kotte, sunrise is at 06:28 and sunset at 18:18 +0530.

Sunshine

With an average of 9.1h of sunshine, January has the most sunshine of the year.

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 of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: An average UV index of 7 in January transforms into this advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.

Frequently asked questions

How hot is it in January?
The high-temperature, in January, in Ethul Kotte, records 30.8°C (87.4°F), while the low-temperature is 23.1°C (73.6°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, in January is appraised at 38°C (100.4°F).
What is the least humid month in Ethul Kotte?
January and February, with an average relative humidity of 74%, are the least humid months.
What is the average humidity in January?
In January, the average relative humidity in Ethul Kotte, Sri Lanka, is 74%.
What is the driest month in Ethul Kotte?
January is the month with the least rainfall in Ethul Kotte. Rain falls for 11.6 days and accumulates 40mm (1.57") of precipitation.
How many days does it rain in January?
In Ethul Kotte, in January, it is raining for 11.6 days, with typically 40mm (1.57") of accumulated precipitation.
How many hours of daylight does Ethul Kotte have in January?
In January, the average day length is 11h and 46min.
What time are sunrise and sunset in January?
On the first day of January, 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?
With an average of 9.1h of sunshine, January has the most sunshine of the year.
How many hours of sunshine does Ethul Kotte have in January?
The average sunshine duration in January is 9.1h.
What is the month with the highest UV index?
The months with the highest UV index in Ethul Kotte, Sri Lanka, are January through April, July, September, November and December, with an average maximum UV index of 7.
How high is the UV index in January?
In Ethul Kotte, the average daily maximum UV index in January is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health 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
Ethul Kotte, 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
Ethul Kotte, 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
Ethul Kotte, 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
Ethul Kotte, 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
Ethul Kotte, 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
Ethul Kotte, 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
Ethul Kotte, 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
Ethul Kotte, 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
Ethul Kotte, 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
Ethul Kotte, 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
Ethul Kotte, 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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