January weather forecast
Yakkaduwa, Sri Lanka

January

Weather in January

January in Yakkaduwa, Sri Lanka, is a hot winter month, with an average temperature ranging between max 30.8°C (87.4°F) and min 22.8°C (73°F).

Temperature

In Yakkaduwa, January's average high-temperature stands at a hot 30.8°C (87.4°F), closely related to the preceding month. An average low-temperature of 22.8°C (73°F) is noted during the month of January.

Heat index

January's average heat index is evaluated at a sweltering 38°C (100.4°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The months with the lowest humidity are January and February, with an average relative humidity of 73%.

Rainfall

The month with the least rainfall in Yakkaduwa, Sri Lanka, is January, when the rain falls for 9.7 days and typically collects 29mm (1.14") of precipitation.

Daylight

The average length of the day in January is 11h and 46min.
On the first day of January in Yakkaduwa, sunrise is at 06:21 and sunset at 18:05. On the last day of the month, sunrise is at 06:29 and sunset at 18:18 +0530.

Sunshine

The months with the most sunshine in Yakkaduwa are January through April, with an average of 9.2h of sunshine.

UV index

January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Yakkaduwa. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: An average UV index of 7 in January transforms into this advice:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

How hot is it in Yakkaduwa in January?
In January, the average high-temperature and low-temperature in Yakkaduwa, Sri Lanka, are 30.8°C (87.4°F) and 22.8°C (73°F) respectively. In January, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 38°C (100.4°F).
What is the least humid month in Yakkaduwa?
January and February, with an average relative humidity of 73%, are the least humid months.
What is the average humidity in January in Yakkaduwa?
The average relative humidity in January in Yakkaduwa, Sri Lanka, is 73%.
What is the driest month in Yakkaduwa?
The month with the least rainfall in Yakkaduwa, Sri Lanka, is January, when the rain falls for 9.7 days and typically collects 29mm (1.14") of precipitation.
How many days does it rain in January in Yakkaduwa?
In Yakkaduwa, in January, it is raining for 9.7 days, with typically 29mm (1.14") of accumulated precipitation.
How many hours of daylight does Yakkaduwa have in January?
In Yakkaduwa, the average day length in January is 11h and 46min.
When is the sunrise / sunset in January in Yakkaduwa?
On the first day of January in Yakkaduwa, Sri Lanka, sunrise is at 06:21 and sunset at 18:05. On the last day of the month, sunrise is at 06:29 and sunset at 18:18 +0530.
What are the months with the most sunshine in Yakkaduwa?
The months with the most sunshine in Yakkaduwa are January through April, with an average of 9.2h of sunshine.
How many hours of sunshine does Yakkaduwa have in January?
In January, the average sunshine duration is 9.2h.
What is the month with the highest UV index in Yakkaduwa?
January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index.
How high is the UV index in January in Yakkaduwa?
The average daily maximum UV index in January in Yakkaduwa, Sri Lanka, is 7. A UV Index reading of 6 to 7 represents a high hazard to health 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 - Yakkaduwa, Sri Lanka
Average temperature in January
Yakkaduwa, Sri Lanka
  • Average high temperature in January: 30.8°C

The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is July (29.2°C).

  • Average low temperature in January: 22.8°C

The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (22.8°C).

Average pressure in January - Yakkaduwa, Sri Lanka
Average pressure in January
Yakkaduwa, Sri Lanka
  • Average pressure in January: 1011.7mbar

The month with the highest atmospheric pressure is January (1011.7mbar).
The months with the lowest atmospheric pressure are May and June (1008.4mbar).

Average wind speed in January - Yakkaduwa, Sri Lanka
Average wind speed in January
Yakkaduwa, Sri Lanka
  • Average wind speed in January: 16.2km/h

The windiest month (with the highest average wind speed) is June (18.3km/h).
The calmest month (with the lowest average wind speed) is March (9.1km/h).

Average humidity in January - Yakkaduwa, Sri Lanka
Average humidity in January
Yakkaduwa, Sri Lanka
  • Average humidity in January: 73%

The months with the highest relative humidity are June, July and August (82%).
The months with the lowest relative humidity are January and February (73%).

Average rainfall in January - Yakkaduwa, Sri Lanka
Average rainfall in January
Yakkaduwa, Sri Lanka
  • Average rainfall in January: 29mm

The wettest month (with the highest rainfall) is June (231mm).
The driest month (with the least rainfall) is January (29mm).

Average rainfall days in January - Yakkaduwa, Sri Lanka
Average rainfall days in January
Yakkaduwa, Sri Lanka
  • Average rainfall days in January: 9.7 days

The month with the highest number of rainy days is August (28.4 days).
The month with the least rainy days is January (9.7 days).

Average daylight in January / Average sunshine in January - Yakkaduwa, Sri Lanka
Average daylight in January /
Average sunshine in January
Yakkaduwa, 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 months with the most sunshine are January, February, March and April (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).

Average sunshine days in January - Yakkaduwa, Sri Lanka
Average sunshine days in January
Yakkaduwa, Sri Lanka
  • Average sunshine days in January: 20 days

The month with the most sunshine days is January (20 days).
The month with the least sunshine days is August (1.2 days).

Average UV index in January - Yakkaduwa, Sri Lanka
Average UV index in January
Yakkaduwa, 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 - Yakkaduwa, Sri Lanka
Average cloud cover in January
Yakkaduwa, Sri Lanka
  • Average cloud cover in January: 21

The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 21).

Average visibility in January - Yakkaduwa, Sri Lanka
Average visibility in January
Yakkaduwa, Sri Lanka
  • Average visibility in January: 10km

The months with the highest visibility are January, February, March, April, June, July, September and December (10km).
The months with the lowest visibility are May, August, October and November (9km).

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