September weather forecast
Kahathuduwa, Sri Lanka

September, the first month of the autumn in Kahathuduwa, is still a warm month, with an average temperature varying between 25.2°C (77.4°F) and 28.8°C (83.8°F).

Temperature

September's advent denotes a minor fluctuation in the average high-temperature to a still moderately hot 28.8°C (83.8°F) from August's 28.6°C (83.5°F). Registering an almost steady temperature, Kahathuduwa's nights in September see an average low of 25.2°C (77.4°F).

Heat index

The heat index value during September is calculated to be a very hot 35°C (95°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The average relative humidity in September in Kahathuduwa is 82%.

Rainfall

In Kahathuduwa, in September, during 26.3 rainfall days, 201mm (7.91") of precipitation is typically accumulated. In Kahathuduwa, during the entire year, the rain falls for 273.8 days and collects up to 2059mm (81.06") of precipitation.

Daylight

In September, the average length of the day is 12h and 10min.
On the first day of the month, sunrise is at 06:02 and sunset at 18:17. On the last day of September, in Kahathuduwa, sunrise is at 05:57 and sunset at 18:01 +0530.

Sunshine

The average sunshine in September is 7.6h.

UV index

The months with the highest UV index in Kahathuduwa are January through April, July, September through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high daily UV index of 7 during September translates into the following directions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.