Negombo
Sri Lanka
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
Negombo, Sri Lanka

October, the same as September, is a moderately hot autumn month in Negombo, Sri Lanka, with average temperature varying between 29°C (84.2°F) and 24°C (75.2°F).

Temperature

June through December, with an average high-temperature of 29°C (84.2°F), are the coldest months.

Rainfall

In Negombo, Sri Lanka, during October, the rain falls for 15 days and regularly aggregates up to 348mm (13.7") of precipitation. In Negombo, during the entire year, the rain falls for 125 days and collects up to 2345mm (92.3") of precipitation.

Sea temperature

In Negombo, Sri Lanka, the average seawater temperature is 28.5°C (83.3°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 Negombo, the average length of the day in October is 12h.

Sunshine

June through October, with an average of 6h of sunshine, are months with the least sunshine in Negombo.

UV index

February through October, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an extreme health hazard from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 12 transform into the following instructions:
Practice all essential precautions. Protection against sun damage is crucial. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 strength of the UV rays is significantly increased by the reflection of the water and sand.

What are the coldest months in Negombo?

The coldest months in Negombo, Sri Lanka, are June through December, with an average high-temperature of 29°C (84.2°F).

What is the temperature in October in Negombo?

In Negombo, Sri Lanka, in October, the average high-temperature is 29°C (84.2°F), and the average low-temperature is 24°C (75.2°F).

How many days does it rain in October in Negombo?

In Negombo, in October, it is raining for 15 days, with typically 348mm (13.7") of accumulated precipitation.

What is the sea water temperature in October in Negombo?

In Negombo, in October, the average water temperature is 28.5°C (83.3°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.

How many hours of daylight does Negombo have in October?

The average length of the day in October in Negombo is 12h.

What is the month with the least sunshine in Negombo?

June through October, with an average of 6h of sunshine, are months with the least sunshine in Negombo.

How long on average sun shines in October in Negombo?

The average sunshine in October in Negombo, Sri Lanka, is 6h.

What are the months with the highest UV index in Negombo?

Months with the highest UV index in Negombo, Sri Lanka, are February through October, with an average maximum UV index of 12.

What is the UV index reading in October in Negombo?

In Negombo, the average daily maximum UV index in October is 12. A UV Index reading of 11, and higher, represents an excessive health risk from unsafe exposure to the Sun's UV rays.
Average temperature in October - Negombo, Sri Lanka
  • Average high temperature in October: 29°C

Warmest months (with the highest average high temperature) are February, March, April and May (31°C).
Months with the lowest average high temperature are June, July, August, September, October, November and December (29°C).

  • Average low temperature in October: 24°C

The month with the highest average low temperature is May (26°C).
Coldest months (with the lowest average low temperature) are January, February and December (22°C).

Average rainfall in October - Negombo, Sri Lanka
  • Average rainfall in October: 348mm

The wettest month (with the highest rainfall) is May (371mm).
The driest month (with the lowest rainfall) is February (69mm).

Average rainfall days in October - Negombo, Sri Lanka
  • Average rainfall days in October: 15 days

Months with the highest number of rainy days are October and November (15 days).
Months with the lowest number of rainy days are January and February (4 days).

Average sea temperature in October - Negombo, Sri Lanka
  • Average sea temperature in October: 28.5°C

The best month for swimming (with the highest average sea temperature) is April (29.7°C).
The coldest month (with the lowest average sea temperature) is August (27°C).

Average daylight in October / Average sunshine in October - Negombo, Sri Lanka
  • Average daylight in October: 12h

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

  • Average sunshine in October: 6h

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

Average UV index in October - Negombo, Sri Lanka
  • Average UV index in October: 12

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).