January weather forecast
Habarana, Sri Lanka

January, like December, in Habarana, Sri Lanka, is another warm winter month, with temperature in the range of an average high of 29.3°C (84.7°F) and an average low of 20°C (68°F).

Temperature

Habarana experiences its coldest period in January and December, averaging a high-temperature of 29.3°C (84.7°F).

Heat index

In January, the heat index is appraised at a very hot 36°C (96.8°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Heat index determinations are made taking into account the shade and light air movements. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are primarily vital for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In Habarana, the average relative humidity in January is 82%.

Rainfall

In Habarana, in January, during 16 rainfall days, 42mm (1.65") of precipitation is typically accumulated. Throughout the year, in Habarana, Sri Lanka, there are 196.8 rainfall days, and 943mm (37.13") of precipitation is accumulated.

Daylight

In January, the average length of the day is 11h and 43min.
On the first day of the month, sunrise is at 06:20 and sunset at 18:00. On the last day of January, in Habarana, sunrise is at 06:26 and sunset at 18:13 +0530.

Sunshine

In January, the average sunshine in Habarana is 7.4h.

UV index

January, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Habarana. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In January, the maximum UV index of 6 suggests this advice:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. 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. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.