Colombo
Sri Lanka
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
Colombo, Sri Lanka

Statues on the Seema Malaka Temple in Colombo, Sri Lanka, overlooking the Beira Lake, and a view of the tall buildings of Colombo
Statues on the Seema Malaka Temple in Colombo, Sri Lanka, overlooking the Beira Lake, and a view of the tall buildings of Colombo
Octubre, like Septiembre, is a hot autumn month in Colombo, Sri Lanka, with average temperature ranging between max 30°C (86°F) and min 24°C (75.2°F).

Temperature

Julio, Agosto and Octubre, with an average high-temperature of 30°C (86°F), are the coldest months.

Heat index

The average heat index is appraised at a torrid 37.1°C (98.8°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'apparent temperature', or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, wind, metabolic differences). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In Octubre, the average relative humidity in Colombo is 78%.

Rainfall

In Colombo, in Octubre, it is raining for 17 days, with typically 365.4mm (14.39") of accumulated precipitation. In Colombo, during the entire year, the rain falls for 145 days and collects up to 2523.7mm (99.36") of precipitation.

Sea temperature

In Colombo, the average water temperature is 28.6°C (83.5°F).
Note: 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.

Daylight

In Colombo, the average length of the day is 12h.

Sunshine

In Colombo, the average sunshine is 6.5h.

UV index

Months with the highest UV index in Colombo, Sri Lanka, are Febrero through Octubre, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 12 interpret into the following advice:
Take all necessary precautions, as unprotected skin 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. 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. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the coldest month in Colombo?

The coldest months in Colombo, Sri Lanka, are Julio, Agosto and Octubre, with an average high-temperature of 30°C (86°F).

What is the temperature in Octubre in Colombo?

In Octubre, the average high-temperature is 30°C (86°F), and the average low-temperature is 24°C (75.2°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that combines both air temperature and relative humidity, in Octubre is estimated at 37.1°C (98.8°F).

What is the average humidity in Octubre in Colombo?

In Colombo, Sri Lanka, the average relative humidity in Octubre is 78%.

How many days does it rain in Octubre in Colombo?

In Colombo, during Octubre, the rain falls for 17 days and regularly aggregates up to 365.4mm (14.39") of precipitation.

What is the water temperature in Octubre in Colombo?

In Colombo, Sri Lanka, the average seawater temperature in Octubre is 28.6°C (83.5°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 Colombo have in Octubre?

In Colombo, Sri Lanka, the average length of the day in Octubre is 12h.

How many hours of sunshine does Colombo have in Octubre?

In Octubre, the average sunshine in Colombo is 6.5h.

What is the month with the highest UV index in Colombo?

Months with the highest UV index in Colombo, Sri Lanka, are Febrero through Octubre, with an average maximum UV index of 12.

What is the UV index intensity in Octubre in Colombo?

The average daily maximum UV index in Octubre in Colombo is 12. A UV Index reading of 11, and higher, represents an extreme health vulnerability from unprotected exposure to the UV radiation.
Average temperature in October - Colombo, Sri Lanka
  • Average high temperature in October: 30°C

The warmest month (with the highest average high temperature) is April (31.8°C).
Months with the lowest average high temperature are July, August and October (30°C).

  • Average low temperature in October: 24°C

Months with the highest average low temperature are May and June (25.5°C).
The coldest month (with the lowest average low temperature) is January (22.3°C).

Average humidity in October - Colombo, Sri Lanka
  • Average humidity in October: 78%

The month with the highest relative humidity is June (79%).
Months with the lowest relative humidity are January and February (69%).

Average rainfall in October - Colombo, Sri Lanka
  • Average rainfall in October: 365.4mm

The wettest month (with the highest rainfall) is November (414.4mm).
The driest month (with the lowest rainfall) is January (58.2mm).

Average rainfall days in October - Colombo, Sri Lanka
  • Average rainfall days in October: 17 days

The month with the highest number of rainy days is October (17 days).
Months with the lowest number of rainy days are January and February (5 days).

Average sea temperature in October - Colombo, Sri Lanka
  • Average sea temperature in October: 28.6°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 October / Average sunshine in October - Colombo, Sri Lanka
  • Average daylight in October: 12h

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 October: 6.5h

The month with most sunshine is March (Average sunshine: 8.9h).
The month with least sunshine is September (Average sunshine: 6.3h).

Average UV index in October - Colombo, 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).