September weather forecast
Kuliyapitiya, Sri Lanka

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Weather in September

The weather in September witnesses a significant decrease in rainfall to 153mm (6.02"), bringing a decline in the intensity of the monsoon season. As the heavy rains recede, the flora around Kuliyapitiya begins to flourish, beautifying the landscapes. The temperatures and the daylight hours remain closely consistent with those of August. Despite the lingering humidity, the general weather is becoming more pleasant and favourable for exploration. September, blending the receding rains with the persistent tropical warmth, offers an engaging experience of Kuliyapitiya.

Temperature

September's presence in Kuliyapitiya marks an average high-temperature of a still moderately hot 29.5°C (85.1°F), subtly varied from August's 29.3°C (84.7°F). Kuliyapitiya's September nights witness minimal differential from the daytime temperatures, with averages of 25.2°C (77.4°F).

Heat index

September's mean heat index is calculated to be a torrid 36°C (96.8°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
In reference to the heat index, it's for places in shade and with a slight wind. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in September in Kuliyapitiya, Sri Lanka, is 81%.

Rainfall

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

Daylight

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

Sunshine

In September, the average sunshine in Kuliyapitiya 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. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily high UV index of 7 in September leads to these guidelines:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

Is it hot in Kuliyapitiya during September?

September temperatures in Kuliyapitiya, Sri Lanka, vary between a high-temperature of 29.5°C (85.1°F) and a low-temperature of 25.2°C (77.4°F). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is calculated to be 36°C (96.8°F).

What is the average humidity in September in Kuliyapitiya?

The average relative humidity in September in Kuliyapitiya, Sri Lanka, is 81%.

How many days does it rain in September in Kuliyapitiya?

In Kuliyapitiya, Sri Lanka, during September, the rain falls for 24.4 days and regularly aggregates up to 153mm (6.02") of precipitation.

How many hours of daylight does Kuliyapitiya have in September?

In Kuliyapitiya, the average day length in September is 12h and 10min.

When are sunrise and sunset in September in Kuliyapitiya?

In September, on the first day of the month, sunrise is at 06:02 and sunset at 18:17. On the last day of the month, in Kuliyapitiya, Sri Lanka, sunrise is at 05:57 and sunset at 18:01 +0530.

How many hours of sunshine does Kuliyapitiya have in September?

In September, the average sunshine duration in Kuliyapitiya is 7.7h.

When is the highest UV index in Kuliyapitiya?

The months with the highest UV index are January through April, July, September, November and December, with an average maximum UV index of 7.

What is the UV index reading in September in Kuliyapitiya?

In Kuliyapitiya, the average daily maximum UV index in September 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 temperature in September
Kuliyapitiya, Sri Lanka

Average temperature in September - Kuliyapitiya, Sri Lanka
  • Average high temperature in September: 29.5°C

The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is July (29.2°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 (22.8°C).

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Average pressure in September
Kuliyapitiya, Sri Lanka

Average pressure in September - Kuliyapitiya, Sri Lanka
  • Average pressure in September: 1009.6mbar

The month with the highest atmospheric pressure is January (1011.7mbar).
The months with the lowest atmospheric pressure are May and June (1008.4mbar).

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Average wind speed in September
Kuliyapitiya, Sri Lanka

Average wind speed in September - Kuliyapitiya, Sri Lanka
  • Average wind speed in September: 16km/h

The windiest month (with the highest average wind speed) is June (18.3km/h).
The calmest month (with the lowest average wind speed) is March (9.1km/h).

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Average humidity in September
Kuliyapitiya, Sri Lanka

Average humidity in September - Kuliyapitiya, Sri Lanka
  • Average humidity in September: 81%

The months with the highest relative humidity are June, July and August (82%).
The months with the lowest relative humidity are January and February (73%).

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Average rainfall in September
Kuliyapitiya, Sri Lanka

Average rainfall in September - Kuliyapitiya, Sri Lanka
  • Average rainfall in September: 153mm

The wettest month (with the highest rainfall) is June (231mm).
The driest month (with the least rainfall) is January (29mm).

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Average rainfall days in September
Kuliyapitiya, Sri Lanka

Average rainfall days in September - Kuliyapitiya, Sri Lanka
  • Average rainfall days in September: 24.4 days

The month with the highest number of rainy days is August (28.4 days).
The month with the least rainy days is January (9.7 days).

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Average daylight in September /
Average sunshine in September
Kuliyapitiya, Sri Lanka

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

The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).

  • Average sunshine in September: 7h and 4min

The months with the most sunshine are January, February, March and April (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).

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Average sunshine days in September
Kuliyapitiya, Sri Lanka

Average sunshine days in September - Kuliyapitiya, Sri Lanka
  • Average sunshine days in September: 3 days

The month with the most sunshine days is January (20 days).
The month with the least sunshine days is August (1.2 days).

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Average UV index in September
Kuliyapitiya, Sri Lanka

Average UV index in September - Kuliyapitiya, 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).

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Average cloud cover in September
Kuliyapitiya, Sri Lanka

Average cloud cover in September - Kuliyapitiya, Sri Lanka
  • Average cloud cover in September: 55

The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 21).

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Average visibility in September
Kuliyapitiya, Sri Lanka

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

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

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Kuliyapitiya, Sri Lanka

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