September weather forecast
Minuwangoda, Sri Lanka

The first month of the autumn, September, is also a moderately hot month in Minuwangoda, Sri Lanka, with an average temperature fluctuating between 29.5°C (85.1°F) and 25.2°C (77.4°F).

Temperature

The arrival of September marks a slight shift to an average high-temperature of a still warm 29.5°C (85.1°F) from August's 29.3°C (84.7°F). In Minuwangoda, September nights experience a modest descent in temperature from daily peaks, cooling down to an average of 25.2°C (77.4°F).

Heat index

During September, the heat index is appraised at a torrid 36°C (96.8°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The average relative humidity in September in Minuwangoda is 81%.

Rainfall

In Minuwangoda, Sri Lanka, in September, during 24.4 rainfall days, 153mm (6.02") of precipitation is typically accumulated. In Minuwangoda, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.

Daylight

In Minuwangoda, the average length of the day in September 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 Minuwangoda, Sri Lanka, sunrise is at 05:58 and sunset at 18:01 +0530.

Sunshine

In Minuwangoda, the average sunshine in September is 7.7h.

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 Minuwangoda. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.