Dehiwala
Sri Lanka
Long-term weather forecast
Long-term weather forecast

November weather forecast and climate
Dehiwala, Sri Lanka

The last month of the autumn, November, is another tropical month in Dehiwala, Sri Lanka, with average temperature ranging between max 30°C (86°F) and min 23°C (73.4°F).

Temperature

June through December, with an average high-temperature of 30°C (86°F), are the coldest months.

Rainfall

In Dehiwala, during 15 rainfall days, 306mm (12") of precipitation is typically accumulated. Throughout the year, in Dehiwala, there are 139 rainfall days, and 2402mm (94.6") of precipitation is accumulated.

Sea temperature

In Dehiwala, Sri Lanka, the average water temperature is 28.8°C (83.8°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In Dehiwala, the average length of the day in November is 11.8h.

Sunshine

In Dehiwala, Sri Lanka, the average sunshine is 7h.

UV index

January, November and December, with an average maximum UV index of 11, are months with the lowest UV index in Dehiwala. A UV Index estimate of 11, and higher, represents an excessive health risk from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 11 transform into the following instructions:
Take all required precautions, as unprotected skin and eyes can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the coldest month in Dehiwala?

The coldest months in Dehiwala, Sri Lanka, are June through December, with an average high-temperature of 30°C (86°F).

What is the temperature in November in Dehiwala?

In November, in Dehiwala, Sri Lanka, the average high-temperature is 30°C (86°F), and the average low-temperature is 23°C (73.4°F).

How many days does it rain in November in Dehiwala?

In Dehiwala, in November, during 15 rainfall days, 306mm (12") of precipitation is typically accumulated.

What is the sea water temperature in November in Dehiwala?

In Dehiwala, Sri Lanka, in November, the average water temperature is 28.8°C (83.8°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in November in Dehiwala?

The average length of the day in November in Dehiwala is 11.8h.

How long on average sun shines in November in Dehiwala?

In Dehiwala, the average sunshine in November is 7h.

When is the lowest UV index in Dehiwala?

January, November and December, with an average maximum UV index of 11, are months with the lowest UV index in Dehiwala, Sri Lanka.

What is the UV index reading in November in Dehiwala?

In November, the average daily maximum UV index in Dehiwala is 11. A UV Index estimate of 11, and higher, represents an extreme health threat from the exposure to the Sun's UV rays.
Average temperature in November - Dehiwala, Sri Lanka
  • Average high temperature in November: 30°C

Warmest months (with the highest average high temperature) are March and April (32°C).
Months with the lowest average high temperature are June, July, August, September, October, November and December (30°C).

  • Average low temperature in November: 23°C

Months with the highest average low temperature are May, June, July, August and September (25°C).
Coldest months (with the lowest average low temperature) are January and December (22°C).

Average rainfall in November - Dehiwala, Sri Lanka
  • Average rainfall in November: 306mm

The wettest month (with the highest rainfall) is May (382mm).
The driest month (with the lowest rainfall) is January (55mm).

Average rainfall days in November - Dehiwala, Sri Lanka
  • Average rainfall days in November: 15 days

The month with the highest number of rainy days is October (16 days).
Months with the lowest number of rainy days are January and February (5 days).

Average sea temperature in November - Dehiwala, Sri Lanka
  • Average sea temperature in November: 28.8°C

The best month for swimming (with the highest average sea temperature) is April (29.6°C).
The coldest month (with the lowest average sea temperature) is August (27.2°C).

Average daylight in November / Average sunshine in November - Dehiwala, Sri Lanka
  • Average daylight in November: 11.8h

Months with the longest days are June and July (Average daylight: 12.5h).
The month with shortest days is December (Average daylight: 11.7h).

  • Average sunshine in November: 7h

Months with most sunshine are February and March (Average sunshine: 9h).
Months with least sunshine are May, June, July, August, September and October (Average sunshine: 6).

Average UV index in November - Dehiwala, Sri Lanka
  • Average UV index in November: 11

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
Months with the lowest UV index are January, November and December (UV index 11).