September weather forecast
Katubedda, Sri Lanka

The first month of the autumn, September, is also a moderately hot month in Katubedda, Sri Lanka, with an average temperature ranging between min 25.2°C (77.4°F) and max 28.9°C (84°F).

Temperature

Katubedda marks the onset of September with an average high-temperature of a still warm 28.9°C (84°F), a subtle shift from August's 28.6°C (83.5°F). The nighttime temperature demonstrates a marginal decline, averaging at a still moderately hot 25.2°C (77.4°F) during September.

Heat index

Throughout September, the heat index is computed to be a torrid 35°C (95°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. 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. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In September, the average relative humidity is 82%.

Rainfall

In Katubedda, in September, during 24.3 rainfall days, 189mm (7.44") of precipitation is typically accumulated. In Katubedda, during the entire year, the rain falls for 272.3 days and collects up to 2039mm (80.28") of precipitation.

Daylight

The average length of the day in September in Katubedda 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, sunrise is at 05:58 and sunset at 18:02 +0530.

Sunshine

In Katubedda, the average sunshine in September is 7.5h.

UV index

January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Katubedda. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.