September weather forecast
Dolapihilla, Sri Lanka

September

Weather in September

The first month of the autumn, September, is also a hot month in Dolapihilla, Sri Lanka, with an average temperature varying between 22.3°C (72.1°F) and 31.2°C (88.2°F).

Temperature

Stepping into September, Dolapihilla records an average high-temperature of a still hot 31.2°C (88.2°F), almost consistent with August. Nighttime temperature in Dolapihilla experiences an average drop to an agreeable 22.3°C (72.1°F) in September.

Heat index

In September, the average heat index is appraised at a torrid 39°C (102.2°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

March and September, with an average relative humidity of 72%, are the least humid months in Dolapihilla.

Rainfall

In Dolapihilla, during September, the rain falls for 15.2 days and regularly aggregates up to 72mm (2.83") of precipitation. In Dolapihilla, during the entire year, the rain falls for 217.7 days and collects up to 1165mm (45.87") of precipitation.

Daylight

In Dolapihilla, the average length of the day in September is 12h and 10min.
On the first day of the month, sunrise is at 05:59 and sunset at 18:15. On the last day of September, in Dolapihilla, sunrise is at 05:55 and sunset at 17:59 +0530.

Sunshine

In Dolapihilla, Sri Lanka, the average sunshine in September is 10.5h.

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 7 translates into these guidelines:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. 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. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.

Frequently asked questions

How hot does it get in Dolapihilla in September?
The average high-temperature and low-temperature in Dolapihilla during September are 31.2°C (88.2°F) and 22.3°C (72.1°F) respectively. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in September is appraised at 39°C (102.2°F).
What is the least humid month in Dolapihilla?
March and September, with an average relative humidity of 72%, are the least humid months in Dolapihilla.
What is the average humidity in September in Dolapihilla?
The average relative humidity in September in Dolapihilla is 72%.
How many days does it rain in September in Dolapihilla?
In Dolapihilla, Sri Lanka, in September, during 15.2 rainfall days, 72mm (2.83") of precipitation is typically accumulated.
How many hours of daylight does Dolapihilla have in September?
In Dolapihilla, the average day length in September is 12h and 10min.
What time are sunrise and sunset in September in Dolapihilla?
On the first day of September in Dolapihilla, sunrise is at 05:59 and sunset at 18:15. On the last day of the month, sunrise is at 05:55 and sunset at 17:59 +0530.
How many hours of sunshine does Dolapihilla have in September?
The average sunshine duration in September in Dolapihilla is 10.5h.
What is the month with the highest UV index in Dolapihilla?
March through September, with an average maximum UV index of 7, are months with the highest UV index in Dolapihilla, Sri Lanka.
How high is the UV index in September in Dolapihilla?
The average daily maximum UV index in September in Dolapihilla is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
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 - Dolapihilla, Sri Lanka
Average temperature in September
Dolapihilla, Sri Lanka
  • Average high temperature in September: 31.2°C

The warmest month (with the highest average high temperature) is April (32.9°C).
The month with the lowest average high temperature is December (28.6°C).

  • Average low temperature in September: 22.3°C

The month with the highest average low temperature is May (23°C).
The coldest month (with the lowest average low temperature) is February (18.9°C).

Average pressure in September - Dolapihilla, Sri Lanka
Average pressure in September
Dolapihilla, Sri Lanka
  • Average pressure in September: 1009.2mbar

The month with the highest atmospheric pressure is January (1011.9mbar).
The month with the lowest atmospheric pressure is June (1007.9mbar).

Average wind speed in September - Dolapihilla, Sri Lanka
Average wind speed in September
Dolapihilla, Sri Lanka
  • Average wind speed in September: 13.2km/h

The windiest month (with the highest average wind speed) is June (16.5km/h).
The calmest month (with the lowest average wind speed) is April (5.6km/h).

Average humidity in September - Dolapihilla, Sri Lanka
Average humidity in September
Dolapihilla, Sri Lanka
  • Average humidity in September: 72%

The month with the highest relative humidity is December (83%).
The months with the lowest relative humidity are March and September (72%).

Average rainfall in September - Dolapihilla, Sri Lanka
Average rainfall in September
Dolapihilla, Sri Lanka
  • Average rainfall in September: 72mm

The wettest month (with the highest rainfall) is October (267mm).
The driest month (with the least rainfall) is June (29mm).

Average rainfall days in September - Dolapihilla, Sri Lanka
Average rainfall days in September
Dolapihilla, Sri Lanka
  • Average rainfall days in September: 15.2 days

The month with the highest number of rainy days is April (24.7 days).
The month with the least rainy days is February (11.8 days).

Average daylight in September / Average sunshine in September - Dolapihilla, Sri Lanka
Average daylight in September /
Average sunshine in September
Dolapihilla, 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: 10h and 3min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in September - Dolapihilla, Sri Lanka
Average sunshine days in September
Dolapihilla, Sri Lanka
  • Average sunshine days in September: 10.5 days

The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is April (4 days).

Average UV index in September - Dolapihilla, Sri Lanka
Average UV index in September
Dolapihilla, Sri Lanka
  • Average UV index in September: 7

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

Average cloud cover in September - Dolapihilla, Sri Lanka
Average cloud cover in September
Dolapihilla, Sri Lanka
  • Average cloud cover in September: 31

The months with the most cloud cover are November and December (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 24).

Average visibility in September - Dolapihilla, Sri Lanka
Average visibility in September
Dolapihilla, Sri Lanka
  • Average visibility in September: 10km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, November and December (8km).

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