January weather forecast
Welikadamulla, Sri Lanka

January

Weather in January

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

Temperature

The shift into January finds Welikadamulla at an average high-temperature of a tropical 30.8°C (87.4°F), closely comparable to December's conditions. The temperature dips to an average of 23.1°C (73.6°F) during January nights.

Heat index

The average heat index in January is computed to be a fiery hot 38°C (100.4°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

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

Rainfall

January is the month with the least rainfall. Rain falls for 11.6 days and accumulates 40mm (1.57") of precipitation.

Daylight

In January, the average length of the day is 11h and 46min.
On the first day of the month, sunrise is at 06:21 and sunset at 18:04. On the last day of January, in Welikadamulla, sunrise is at 06:28 and sunset at 18:17 +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 risk from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 7 in January interprets into the following advice:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Enhance your sun protection with tightly woven, yet airy clothing.

Frequently asked questions

How hot is it in Welikadamulla in January?
The high-temperature, in January, in Welikadamulla, 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. 'feels like', 'real feel'), which combines air temperature and relative humidity, in January is computed to be 38°C (100.4°F).
What are the least humid months in Welikadamulla?
January and February, with an average relative humidity of 74%, are the least humid months in Welikadamulla.
What is the average humidity in January in Welikadamulla?
The average relative humidity in January in Welikadamulla, Sri Lanka, is 74%.
What is the driest month in Welikadamulla?
January is the month with the least rainfall in Welikadamulla, Sri Lanka. Rain falls for 11.6 days and accumulates 40mm (1.57") of precipitation.
How many days does it rain in January in Welikadamulla?
In Welikadamulla, during January, the rain falls for 11.6 days and regularly aggregates up to 40mm (1.57") of precipitation.
How many hours of daylight does Welikadamulla have in January?
In Welikadamulla, Sri Lanka, the average day length in January is 11h and 46min.
When is the sunrise / sunset in January in Welikadamulla?
In January, on the first day of the month, sunrise is at 06:21 and sunset at 18:04. On the last day of the month, in Welikadamulla, sunrise is at 06:28 and sunset at 18:17 +0530.
What month has the most sunshine in Welikadamulla?
The month with the most sunshine is January, with an average of 9.1h of sunshine.
How long on average sun shines in January in Welikadamulla?
The average sunshine duration in January is 9.1h.
What is the month with the highest UV index in Welikadamulla?
January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index.
What is the UV index reading in January in Welikadamulla?
In Welikadamulla, Sri Lanka, the average daily maximum UV index in January is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
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 - Welikadamulla, Sri Lanka
Average temperature in January
Welikadamulla, 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 - Welikadamulla, Sri Lanka
Average pressure in January
Welikadamulla, 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 - Welikadamulla, Sri Lanka
Average wind speed in January
Welikadamulla, 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 - Welikadamulla, Sri Lanka
Average humidity in January
Welikadamulla, 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 - Welikadamulla, Sri Lanka
Average rainfall in January
Welikadamulla, 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 - Welikadamulla, Sri Lanka
Average rainfall days in January
Welikadamulla, 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 - Welikadamulla, Sri Lanka
Average daylight in January /
Average sunshine in January
Welikadamulla, 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 - Welikadamulla, Sri Lanka
Average sunshine days in January
Welikadamulla, 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 - Welikadamulla, Sri Lanka
Average UV index in January
Welikadamulla, 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 - Welikadamulla, Sri Lanka
Average cloud cover in January
Welikadamulla, 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 - Welikadamulla, Sri Lanka
Average visibility in January
Welikadamulla, 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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