January weather forecast
Hewagama, Sri Lanka

January in Hewagama, Sri Lanka, is a tropical winter month, with an average temperature varying between 30.8°C (87.4°F) and 23.1°C (73.6°F).

Temperature

January's onset brings an average high-temperature of a tropical 30.8°C (87.4°F), showing a minute difference from December's 29.9°C (85.8°F). Hewagama observes an average low-temperature of 23.1°C (73.6°F) during January.

Heat index

Throughout January, the heat index is computed to be a very hot 38°C (100.4°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

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

Rainfall

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

Daylight

The average length of the day in January in Hewagama is 11h and 46min.
On the first day of January in Hewagama, sunrise is at 06:21 and sunset at 18:05. On the last day of the month, sunrise is at 06:28 and sunset at 18:18 +0530.

Sunshine

With an average of 9.1h of sunshine, January has the most sunshine of the year in Hewagama.

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. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In January, the maximum UV index of 7 translates into these guidelines:
Shield from overexposure. Defense against sun-related harm is required. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.