September weather forecast
Bataduwa, Sri Lanka

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Weather in September

September, the first month of the autumn in Bataduwa, is still a warm month, with temperature in the range of an average low of 25.8°C (78.4°F) and an average high of 28.3°C (82.9°F).

Temperature

Bataduwa's coldest season falls during August and September, averaging a high-temperature of 28.3°C (82.9°F).

Heat index

September's heat index is calculated to be a hot 33°C (91.4°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. 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 are particularly important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

June and September, with an average relative humidity of 82%, are the most humid months in Bataduwa.

Rainfall

In Bataduwa, in September, it is raining for 24.5 days, with typically 222mm (8.74") of accumulated precipitation. Throughout the year, in Bataduwa, there are 286.9 rainfall days, and 1974mm (77.72") of precipitation is accumulated.

Daylight

The average length of the day in September in Bataduwa is 12h and 9min.
On the first day of the month, sunrise is at 06:02 and sunset at 18:15. On the last day of September, sunrise is at 05:56 and sunset at 18:01 +0530.

Sunshine

In September, the average sunshine in Bataduwa is 8.5h.

UV index

May and September, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 6 in September transforms into this advice:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

Frequently asked questions

What time of the year is the coldest in Bataduwa?

The temperature in Bataduwa hits its lowest levels in August and September, recording an average high-temperature of 28.3°C (82.9°F).

How hot does it get in Bataduwa in September?

September temperatures in Bataduwa vary between a high-temperature of 28.3°C (82.9°F) and a low-temperature of 25.8°C (78.4°F). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is calculated to be 33°C (91.4°F).

What are the most humid months in Bataduwa?

June and September, with an average relative humidity of 82%, are most humid months in Bataduwa.

What is the average humidity in September in Bataduwa?

In September, the average relative humidity in Bataduwa, Sri Lanka, is 82%.

How many days does it rain in September in Bataduwa?

In Bataduwa, Sri Lanka, during September, the rain falls for 24.5 days and regularly aggregates up to 222mm (8.74") of precipitation.

What is the average length of the day in September in Bataduwa?

The average day length in September is 12h and 9min.

When is the sunrise / sunset in September in Bataduwa?

On the first day of September, sunrise is at 06:02 and sunset at 18:15. On the last day of the month, sunrise is at 05:56 and sunset at 18:01 +0530.

How many hours of sunshine does Bataduwa have in September?

In September, the average sunshine duration in Bataduwa is 8.5h.

What are the months with the lowest UV index in Bataduwa?

May and September, with an average maximum UV index of 6, are months with the lowest UV index.

What is the UV index intensity in September in Bataduwa?

The average daily maximum UV index in September in Bataduwa is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.

Average temperature in September
Bataduwa, Sri Lanka

Average temperature in September - Bataduwa, Sri Lanka
  • Average high temperature in September: 28.3°C

The warmest months (with the highest average high temperature) are March and April (30.3°C).
The months with the lowest average high temperature are August and September (28.3°C).

  • Average low temperature in September: 25.8°C

The month with the highest average low temperature is May (26.7°C).
The coldest month (with the lowest average low temperature) is January (24°C).

Average pressure in September
Bataduwa, Sri Lanka

Average pressure in September - Bataduwa, Sri Lanka
  • Average pressure in September: 1010.2mbar

The month with the highest atmospheric pressure is January (1011.4mbar).
The month with the lowest atmospheric pressure is May (1008.9mbar).

Average wind speed in September
Bataduwa, Sri Lanka

Average wind speed in September - Bataduwa, Sri Lanka
  • Average wind speed in September: 17.3km/h

The windiest month (with the highest average wind speed) is June (20.2km/h).
The calmest month (with the lowest average wind speed) is January (7.8km/h).

Average humidity in September
Bataduwa, Sri Lanka

Average humidity in September - Bataduwa, Sri Lanka
  • Average humidity in September: 82%

The months with the highest relative humidity are June and September (82%).
The months with the lowest relative humidity are February and March (77%).

Average rainfall in September
Bataduwa, Sri Lanka

Average rainfall in September - Bataduwa, Sri Lanka
  • Average rainfall in September: 222mm

The wettest month (with the highest rainfall) is May (302mm).
The driest month (with the least rainfall) is January (38mm).

Average rainfall days in September
Bataduwa, Sri Lanka

Average rainfall days in September - Bataduwa, Sri Lanka
  • Average rainfall days in September: 24.5 days

The month with the highest number of rainy days is June (28 days).
The month with the least rainy days is January (14.8 days).

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

Average daylight in September / Average sunshine in September - Bataduwa, 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 48min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is April (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

Average sunshine days in September
Bataduwa, Sri Lanka

Average sunshine days in September - Bataduwa, Sri Lanka
  • Average sunshine days in September: 2.4 days

The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is June (1 days).

Average UV index in September
Bataduwa, Sri Lanka

Average UV index in September - Bataduwa, Sri Lanka
  • Average UV index in September: 6

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

Average cloud cover in September
Bataduwa, Sri Lanka

Average cloud cover in September - Bataduwa, Sri Lanka
  • Average cloud cover in September: 50

The month with the most cloud cover is June (Cloud cover 51).
The month with the least cloud cover is February (Cloud cover 26).

Average visibility in September
Bataduwa, Sri Lanka

Average visibility in September - Bataduwa, Sri Lanka
  • Average visibility in September: 9km

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

Bataduwa, Sri Lanka

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