September weather forecast
Pottuvil, Sri Lanka

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Weather in September

September, the first month of the autumn in Pottuvil, is also a hot month, with an average temperature ranging between max 31.8°C (89.2°F) and min 25.7°C (78.3°F).

Temperature

September's onset brings an average high-temperature of a still hot 31.8°C (89.2°F), showing a minute difference from August's 32.3°C (90.1°F). Pottuvil observes an average low-temperature of 25.7°C (78.3°F) during September.

Heat index

Throughout September, the heat index is calculated to be a blisteringly hot 41°C (105.8°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. 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 quite important for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In Pottuvil, the average relative humidity in September is 72%.

Rainfall

In Pottuvil, during September, the rain falls for 22 days and regularly aggregates up to 81mm (3.19") of precipitation. In Pottuvil, Sri Lanka, during the entire year, the rain falls for 237.8 days and collects up to 1259mm (49.57") of precipitation.

Daylight

The average length of the day in September is 12h and 10min.
On the first day of September, sunrise is at 05:55 and sunset at 18:09. On the last day of the month, sunrise is at 05:50 and sunset at 17:54 +0530.

Sunshine

The average sunshine in September in Pottuvil is 10.7h.

UV index

January through October, with an average maximum UV index of 7, are months with the highest UV index in Pottuvil. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

How hot is September in Pottuvil?

In September, the average high-temperature and low-temperature are 31.8°C (89.2°F) and 25.7°C (78.3°F) respectively. The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in September is calculated to be 41°C (105.8°F).

What is the average humidity in September in Pottuvil?

In Pottuvil, the average relative humidity in September is 72%.

How much does it rain in Pottuvil in September?

In Pottuvil, Sri Lanka, in September, it is raining for 22 days, with typically 81mm (3.19") of accumulated precipitation.

How many hours of daylight does Pottuvil have in September?

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

When is the sunrise / sunset in September in Pottuvil?

On the first day of September in Pottuvil, Sri Lanka, sunrise is at 05:55 and sunset at 18:09. On the last day of the month, sunrise is at 05:50 and sunset at 17:54 +0530.

How many hours of sunshine does Pottuvil have in September?

In Pottuvil, the average sunshine duration in September is 10.7h.

When is the highest UV index in Pottuvil?

The months with the highest UV index in Pottuvil, Sri Lanka, are January through October, with an average maximum UV index of 7.

How high is the UV index in September in Pottuvil?

In Pottuvil, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.

Average temperature in September
Pottuvil, Sri Lanka

Average temperature in September - Pottuvil, Sri Lanka
  • Average high temperature in September: 31.8°C

The warmest month (with the highest average high temperature) is June (33°C).
The month with the lowest average high temperature is January (27.3°C).

  • Average low temperature in September: 25.7°C

The month with the highest average low temperature is May (26.6°C).
The coldest month (with the lowest average low temperature) is January (24°C).

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Average pressure in September
Pottuvil, Sri Lanka

Average pressure in September - Pottuvil, Sri Lanka
  • Average pressure in September: 1008.8mbar

The month with the highest atmospheric pressure is January (1011.8mbar).
The month with the lowest atmospheric pressure is June (1007.3mbar).

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Average wind speed in September
Pottuvil, Sri Lanka

Average wind speed in September - Pottuvil, Sri Lanka
  • Average wind speed in September: 9.1km/h

The windiest month (with the highest average wind speed) is January (13.9km/h).
The calmest month (with the lowest average wind speed) is September (9.1km/h).

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Average humidity in September
Pottuvil, Sri Lanka

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

The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are June and July (68%).

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Average rainfall in September
Pottuvil, Sri Lanka

Average rainfall in September - Pottuvil, Sri Lanka
  • Average rainfall in September: 81mm

The wettest month (with the highest rainfall) is December (272mm).
The driest month (with the least rainfall) is June (30mm).

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Average rainfall days in September
Pottuvil, Sri Lanka

Average rainfall days in September - Pottuvil, Sri Lanka
  • Average rainfall days in September: 22 days

The months with the highest number of rainy days are October and November (25.5 days).
The month with the least rainy days is March (12.8 days).

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

Average daylight in September / Average sunshine in September - Pottuvil, 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 4min

The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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Average sunshine days in September
Pottuvil, Sri Lanka

Average sunshine days in September - Pottuvil, Sri Lanka
  • Average sunshine days in September: 5.8 days

The month with the most sunshine days is March (15.5 days).
The month with the least sunshine days is November (3.2 days).

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Average UV index in September
Pottuvil, Sri Lanka

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

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

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Average cloud cover in September
Pottuvil, Sri Lanka

Average cloud cover in September - Pottuvil, Sri Lanka
  • Average cloud cover in September: 28

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is April (Cloud cover 22).

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Average visibility in September
Pottuvil, Sri Lanka

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

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

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Pottuvil, Sri Lanka

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