January weather forecast
Metihakka, Sri Lanka

January, like December, in Metihakka, Sri Lanka, is a moderately hot winter month, with an average temperature fluctuating between 29.3°C (84.7°F) and 19°C (66.2°F).

Temperature

January's presence records an average high-temperature of a still moderately hot 29.3°C (84.7°F), closely mirroring December's climate. The average low-temperature, in January, is a refreshing 19°C (66.2°F).

Heat index

The heat index value for January is appraised at a sweltering 35°C (95°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In January, the average relative humidity is 79%.

Rainfall

In Metihakka, in January, it is raining for 14 days, with typically 34mm (1.34") of accumulated precipitation. In Metihakka, during the entire year, the rain falls for 218.8 days and collects up to 1175mm (46.26") of precipitation.

Daylight

The average length of the day in January is 11h and 44min.
On the first day of the month, sunrise is at 06:19 and sunset at 18:01. On the last day of January, in Metihakka, sunrise is at 06:26 and sunset at 18:14 +0530.

Sunshine

In January, the average sunshine is 8.4h.

UV index

January, February, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In January, a regular UV index of 6 translates into these guidelines:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.