January weather forecast
Ahungalla, Sri Lanka

January in Ahungalla, Sri Lanka marks the beginning of the year with warm and humid conditions. A slight improvement in favorability from the previous month, it is characterized by average high temperatures reaching 29.2°C (84.6°F) and lows dipping to no less than 24°C (75.2°F). Relative humidity sits at a consistent 78%, making the atmosphere feel moist most of the time. This moisture, coupled with warm temperatures fosters an environment conducive for rainfall, with the land receiving around 38mm (1.5") throughout the month. Notably, the average wind speed slightly picks up to 7.8km/h (4.8mph) compared to December, promising a light breeze to break the otherwise humid conditions.

Temperature

January in Ahungalla registers an average high-temperature of a still warm 29.2°C (84.6°F), slightly varied from December's 28.9°C (84°F). During January, the temperature in Ahungalla tends to dip to an average of 24°C (75.2°F) at night.

Heat index

January's average heat index is calculated to be a sweltering 35°C (95°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Ahungalla, the average relative humidity in January is 78%.

Rainfall

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

Sea temperature

In Ahungalla, in January, the average water temperature is 28°C (82.4°F).
Note: For any water activity, the surface water temperatures in the range of 25°C (77°F) to 29°C (84.2°F) are deemed excellent and incredibly pleasant for longer durations.

Daylight

In January, the average length of the day is 11h and 48min.
On the first day of the month, sunrise is at 06:20 and sunset at 18:06. On the last day of January, sunrise is at 06:27 and sunset at 18:18 +0530.

Sunshine

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

UV index

January through April, June through August, October through December, with an average maximum UV index of 7, are months with the highest UV index in Ahungalla. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, a daily UV index of 7 turns into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Notice! Sand and water reflections contribute to a stronger UV exposure.