January weather forecast
Dewalapola, Sri Lanka

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

Temperature

The start of January sees the average high-temperature at a tropical 30.8°C (87.4°F), showing little difference from December's 29.9°C (85.8°F). In Dewalapola, the average temperature during the nights of January drops to an agreeable 22.8°C (73°F).

Heat index

The average heat index in January is estimated at a very hot 38°C (100.4°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Heat index values are typically calculated for conditions of shade and a light breeze. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

January and February, with an average relative humidity of 73%, are the least humid months in Dewalapola.

Rainfall

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

Daylight

In Dewalapola, the average length of the day in January is 11h and 46min.
On the first day of January in Dewalapola, sunrise is at 06:21 and sunset at 18:04. On the last day of the month, sunrise is at 06:28 and sunset at 18:17 +0530.

Sunshine

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

UV index

The months with the highest UV index in Dewalapola are January through April, July, September, November and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: In January, the maximum UV index of 7 suggests these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.