January weather forecast
Raddolugama, Sri Lanka

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

Temperature

Raddolugama's weather in January indicates an average high-temperature of a hot 30.8°C (87.4°F), nearly consistent with the 29.9°C (85.8°F) of December. Nighttime temperature experiences an average drop to a pleasant 22.8°C (73°F) in January.

Heat index

January's average heat index is evaluated at a sweltering 38°C (100.4°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

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

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 Raddolugama, the average length of the day in January is 11h and 46min.
On the first day of January, sunrise is at 06:22 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 Raddolugama 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 Raddolugama. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, the UV index of 7 transforms into the following advice:
Ward off overexposure. Defence against solar harm is crucial. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.