January weather forecast
Miriyawatta, Sri Lanka

January in Miriyawatta, Sri Lanka, is a tropical winter month, with temperature in the range of an average low of 23.4°C (74.1°F) and an average high of 30.3°C (86.5°F).

Temperature

Miriyawatta notes an average high-temperature of a tropical 30.3°C (86.5°F) in January, hardly diverging from December. Throughout the month of January, Miriyawatta expects an average low of 23.4°C (74.1°F).

Heat index

Throughout January, the heat index is appraised at a fiery hot 37°C (98.6°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Data suggests that the heat index is set for environments in shade and with a light wind. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. 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 quite important for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The months with the lowest humidity in Miriyawatta, Sri Lanka, are January and February, with an average relative humidity of 75%.

Rainfall

The month with the least rainfall is January, when the rain falls for 8.9 days and typically collects 25mm (0.98") of precipitation.

Daylight

In Miriyawatta, Sri Lanka, the average length of the day in January is 11h and 47min.
On the first day of January in Miriyawatta, 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

The month with the most sunshine is January, with an average of 9.2h of sunshine.

UV index

January through April, July, September through December, with an average maximum UV index of 7, are months with the highest UV index in Miriyawatta. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 7 during January leads to these instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.