January weather forecast
Narawala, Sri Lanka

January, the same as December, is another warm winter month in Narawala, Sri Lanka, with an average temperature varying between 24°C (75.2°F) and 29.2°C (84.6°F).

Temperature

January's weather records an average high-temperature of a still warm 29.2°C (84.6°F), showing little deviation from December. Narawala's January nights cool down to an average low-temperature of 24°C (75.2°F).

Heat index

For most parts of January, the heat index is calculated to be a torrid 35°C (95°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In Narawala, Sri Lanka, the average relative humidity in January is 78%.

Rainfall

The month with the least rainfall is January, when the rain falls for 14.8 days and typically collects 38mm (1.5") of precipitation.

Daylight

In Narawala, the average length of the day in January is 11h and 49min.
On the first day of the month, sunrise is at 06:18 and sunset at 18:05. On the last day of January, in Narawala, sunrise is at 06:26 and sunset at 18:18 +0530.

Sunshine

In Narawala, the average sunshine in January is 9h.

UV index

The months with the highest UV index are January through April, June through August, October through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: In January, a daily UV index of 7 turns into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.