Colombo
Sri Lanka
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Colombo, Sri Lanka

Statues on the Seema Malaka Temple in Colombo, Sri Lanka, overlooking the Beira Lake, and a view of the tall buildings of Colombo
Statues on the Seema Malaka Temple in Colombo, Sri Lanka, overlooking the Beira Lake, and a view of the tall buildings of Colombo
Enero, the same as Diciembre, in Colombo, Sri Lanka, is another hot winter month, with average temperature ranging between max 30.9°C (87.6°F) and min 22.3°C (72.1°F).
An excellent water temperature of 27.7°C (81.9°F) and only 5 rainfall días, with 58.2mm (2.29") of accumulated rainfall, makes Enero a prime for swimming and other water activities.

Temperature

In Enero, the average high-temperature is relatively the same as in Diciembre - a still hot 30.9°C (87.6°F). In Colombo, the average low-temperature is 22.3°C (72.1°F).

Heat index

In Enero, the average heat index is estimated at a torrid 37°C (98.6°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'felt air temperature', or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, pregnancy, metabolic differences), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

Months with the lowest humidity are Enero and Febrero, with an average relative humidity of 69%.

Rainfall

Enero is the month with the least rainfall in Colombo. Rain falls for 5 days and accumulates 58.2mm (2.29") of precipitation.

Sea temperature

In Colombo, in Enero, the average water temperature is 27.7°C (81.9°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In Colombo, the average length of the day in Enero is 11.8h.

Sunshine

In Colombo, the average sunshine is 8h.

UV index

Enero, Noviembre and Diciembre, with an average maximum UV index of 11, are months with the lowest UV index. A UV Index value of 11, and more, symbolizes an extreme health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In Enero, the average maximum UV index of 11 translate into the following recommendations:
Practice all essential precautions. Protection against sun damage is crucial. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in Enero in Colombo?

In Colombo, in Enero, the average high-temperature is 30.9°C (87.6°F), and the average low-temperature is 22.3°C (72.1°F). In Enero, the average heat index (a.k.a. 'real feel', 'felt air temperature'), that takes the relative humidity and factores it into the air temperature reading, is calculated to 37°C (98.6°F).

What are the least humid months in Colombo?

Enero and Febrero, with an average relative humidity of 69%, are the least humid months in Colombo, Sri Lanka.

What is the average humidity in Enero in Colombo?

In Colombo, Sri Lanka, the average relative humidity in Enero is 69%.

How much does it rain in Colombo in Enero?

In Colombo, in Enero, it is raining for 5 days, with typically 58.2mm (2.29") of accumulated precipitation.

What is the driest month in Colombo?

Enero is the month with the least rainfall in Colombo, Sri Lanka. Rain falls for 5 days and accumulates 58.2mm (2.29") of precipitation.

What is the sea water temperature in Enero in Colombo?

In Colombo, in Enero, the average water temperature is 27.7°C (81.9°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in Enero in Colombo?

The average length of the day in Enero in Colombo is 11.8h.

How long on average sun shines in Enero in Colombo?

In Enero, the average sunshine in Colombo, Sri Lanka, is 8h.

What are the months with the lowest UV index in Colombo?

Enero, Noviembre and Diciembre, with an average maximum UV index of 11, are months with the lowest UV index in Colombo.

What is the UV index intensity in Enero in Colombo?

In Enero, the average daily maximum UV index in Colombo, Sri Lanka, is 11. A UV Index reading of 11, and higher, represents an extreme health vulnerability from unprotected exposure to the UV radiation.
Average temperature in January - Colombo, Sri Lanka
  • Average high temperature in January: 30.9°C

The warmest month (with the highest average high temperature) is April (31.8°C).
Months with the lowest average high temperature are July, August and October (30°C).

  • Average low temperature in January: 22.3°C

Months with the highest average low temperature are May and June (25.5°C).
The coldest month (with the lowest average low temperature) is January (22.3°C).

Average humidity in January - Colombo, Sri Lanka
  • Average humidity in January: 69%

The month with the highest relative humidity is June (79%).
Months with the lowest relative humidity are January and February (69%).

Average rainfall in January - Colombo, Sri Lanka
  • Average rainfall in January: 58.2mm

The wettest month (with the highest rainfall) is November (414.4mm).
The driest month (with the lowest rainfall) is January (58.2mm).

Average rainfall days in January - Colombo, Sri Lanka
  • Average rainfall days in January: 5 days

The month with the highest number of rainy days is October (17 days).
Months with the lowest number of rainy days are January and February (5 days).

Average sea temperature in January - Colombo, Sri Lanka
  • Average sea temperature in January: 27.7°C

The best month for swimming (with the highest average sea temperature) is April (29.6°C).
The coldest month (with the lowest average sea temperature) is August (27.2°C).

Average daylight in January / Average sunshine in January - Colombo, Sri Lanka
  • Average daylight in January: 11.8h

Months with the longest days are June and July (Average daylight: 12.5h).
The month with shortest days is December (Average daylight: 11.7h).

  • Average sunshine in January: 8h

The month with most sunshine is March (Average sunshine: 8.9h).
The month with least sunshine is September (Average sunshine: 6.3h).

Average UV index in January - Colombo, Sri Lanka
  • Average UV index in January: 11

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
Months with the lowest UV index are January, November and December (UV index 11).