September weather forecast
Angulana, Sri Lanka

September

Weather in September

September, the first month of the autumn in Angulana, is still a warm month, with temperature in the range of an average high of 28.9°C (84°F) and an average low of 25.2°C (77.4°F).

Temperature

Angulana registers an average high-temperature of a still warm 28.9°C (84°F) at the commencement of September, closely related to the preceding month. Throughout September, a minimal difference from peak daytime temperatures is noted, marking a steady low-temperature average of 25.2°C (77.4°F).

Heat index

The average heat index in September is evaluated at a sweltering 35°C (95°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. 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.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In September, the average relative humidity is 82%.

Rainfall

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

Daylight

In Angulana, the average length of the day in September is 12h and 10min.
On the first day of the month, sunrise is at 06:03 and sunset at 18:17. On the last day of September, in Angulana, sunrise is at 05:58 and sunset at 18:02 +0530.

Sunshine

The average sunshine in September in Angulana 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. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

How hot is it in Angulana in September?
In Angulana, 28.9°C (84°F) is the average high-temperature and 25.2°C (77.4°F) is the average low-temperature during September. In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 35°C (95°F).
What is the average humidity in September in Angulana?
In September, the average relative humidity in Angulana is 82%.
How many days does it rain in September in Angulana?
In Angulana, during September, the rain falls for 24.3 days and regularly aggregates up to 189mm (7.44") of precipitation.
What is the average length of the day in September in Angulana?
In September, the average day length is 12h and 10min.
What time are sunrise and sunset in September in Angulana?
On the first day of September in Angulana, Sri Lanka, sunrise is at 06:03 and sunset at 18:17. On the last day of the month, sunrise is at 05:58 and sunset at 18:02 +0530.
How many hours of sunshine does Angulana have in September?
In September, the average sunshine duration in Angulana, Sri Lanka, is 7.5h.
When is the highest UV index in Angulana?
January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Angulana.
What is the UV index intensity in September in Angulana?
In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Angulana, Sri Lanka
  • Average high temperature in September: 28.9°C

The warmest months (with the highest average high temperature) are March and April (31.4°C).
The month with the lowest average high temperature is August (28.6°C).

  • Average low temperature in September: 25.2°C

The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (23.3°C).

Average pressure in September
Angulana, Sri Lanka
  • Average pressure in September: 1009.8mbar

The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).

Average wind speed in September
Angulana, Sri Lanka
  • Average wind speed in September: 13.6km/h

The windiest month (with the highest average wind speed) is June (15.9km/h).
The calmest month (with the lowest average wind speed) is March (8km/h).

Average humidity in September
Angulana, Sri Lanka
  • Average humidity in September: 82%

The months with the highest relative humidity are June, July and August (83%).
The month with the lowest relative humidity is January (74%).

Average rainfall in September
Angulana, Sri Lanka
  • Average rainfall in September: 189mm

The wettest month (with the highest rainfall) is June (329mm).
The driest month (with the least rainfall) is January (37mm).

Average rainfall days in September
Angulana, Sri Lanka
  • Average rainfall days in September: 24.3 days

The month with the highest number of rainy days is August (29.8 days).
The month with the least rainy days is January (11.2 days).

Average daylight in September /
Average sunshine in September
Angulana, Sri Lanka
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).

  • Average sunshine in September: 7h and 3min

The month with the most sunshine is January (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).

Average sunshine days in September
Angulana, Sri Lanka
  • Average sunshine days in September: 3.8 days

The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is July (0.4 days).

Average UV index in September
Angulana, Sri Lanka
  • Average UV index in September: 7

The months with the highest UV index are January, February, March, April, July, September, November and December (UV index 7).
The months with the lowest UV index are May, June, August and October (UV index 6).

Average cloud cover in September
Angulana, Sri Lanka
  • Average cloud cover in September: 54

The month with the most cloud cover is June (Cloud cover 55).
The month with the least cloud cover is January (Cloud cover 24).

Average visibility in September
Angulana, Sri Lanka
  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).

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