October weather forecast
Dehianga, Sri Lanka

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Weather in October

October, like September, in Dehianga, Sri Lanka, is a moderately hot autumn month, with an average temperature ranging between min 20.7°C (69.3°F) and max 29.4°C (84.9°F).

Temperature

With the arrival of October, Dehianga's average high-temperature registers at a still warm 29.4°C (84.9°F), indicating a subtle variation from the previous month. In October, Dehianga records an average nighttime temperature of 20.7°C (69.3°F).

Heat index

The heat index value for October is estimated at a sweltering 36°C (96.8°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In October, the average relative humidity in Dehianga is 80%.

Rainfall

The month with the most rainfall in Dehianga, Sri Lanka, is October, when the rain falls for 27.4 days and typically aggregates up to 301mm (11.85") of precipitation.

Daylight

In October, the average length of the day is 11h and 58min.
On the first day of the month, sunrise is at 05:55 and sunset at 17:59. On the last day of October, sunrise is at 05:55 and sunset at 17:47 +0530.

Sunshine

In Dehianga, the average sunshine in October is 7.9h.

UV index

October is the month with the lowest UV index, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In October, the maximum UV index of 5 translates into these guidelines:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Feb 6, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

How hot is it in Dehianga in October?

October temperatures in Dehianga, Sri Lanka, vary between a high-temperature of 29.4°C (84.9°F) and a low-temperature of 20.7°C (69.3°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in October is estimated at 36°C (96.8°F).

What is the average humidity in October in Dehianga?

The average relative humidity in October in Dehianga, Sri Lanka, is 80%.

What is the wettest month in Dehianga?

The month with the most rainfall in Dehianga, Sri Lanka, is October, when the rain falls for 27.4 days and typically aggregates up to 301mm (11.85") of precipitation.

How many days does it rain in October in Dehianga?

In October, in Dehianga, Sri Lanka, the rain falls for 27.4 days. Throughout October, 301mm (11.85") of precipitation is accumulated.

What is the average length of the day in October in Dehianga?

The average day length in October in Dehianga, Sri Lanka, is 11h and 58min.

When are sunrise and sunset in October in Dehianga?

In October, on the first day of the month, sunrise is at 05:55 and sunset at 17:59. On the last day of the month, in Dehianga, sunrise is at 05:55 and sunset at 17:47 +0530.

How long on average sun shines in October in Dehianga?

The average sunshine duration in October in Dehianga, Sri Lanka, is 7.9h.

When is the lowest UV index in Dehianga?

With an average maximum UV index of 5, October is the month with the lowest UV index in Dehianga, Sri Lanka.

What is the UV index intensity in October in Dehianga?

In October, the average daily maximum UV index in Dehianga, Sri Lanka, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average wind speed gusts
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Dehianga, Sri Lanka

Average temperature in October - Dehianga, Sri Lanka
  • Average high temperature in October: 29.4°C

The warmest month (with the highest average high temperature) is March (31.5°C).
The month with the lowest average high temperature is December (27.5°C).

  • Average low temperature in October: 20.7°C

The months with the highest average low temperature are May and June (21.8°C).
The coldest month (with the lowest average low temperature) is February (18.1°C).

Average pressure in October
Dehianga, Sri Lanka

Average pressure in October - Dehianga, Sri Lanka
  • Average pressure in October: 1009.7mbar

The month with the highest atmospheric pressure is January (1011.8mbar).
The month with the lowest atmospheric pressure is June (1008.1mbar).

Average wind speed in October
Dehianga, Sri Lanka

Average wind speed in October - Dehianga, Sri Lanka
  • Average wind speed in October: 6.8km/h

The windiest month (with the highest average wind speed) is June (13.5km/h).
The calmest month (with the lowest average wind speed) is April (4.7km/h).

Average humidity in October
Dehianga, Sri Lanka

Average humidity in October - Dehianga, Sri Lanka
  • Average humidity in October: 80%

The month with the highest relative humidity is December (84%).
The month with the lowest relative humidity is March (74%).

Average rainfall in October
Dehianga, Sri Lanka

Average rainfall in October - Dehianga, Sri Lanka
  • Average rainfall in October: 301mm

The wettest month (with the highest rainfall) is October (301mm).
The driest month (with the least rainfall) is January (38mm).

Average rainfall days in October
Dehianga, Sri Lanka

Average rainfall days in October - Dehianga, Sri Lanka
  • Average rainfall days in October: 27.4 days

The month with the highest number of rainy days is May (28.6 days).
The month with the least rainy days is January (14.1 days).

Average daylight in October /
Average sunshine in October
Dehianga, Sri Lanka

Average daylight in October / Average sunshine in October - Dehianga, Sri Lanka
  • Average daylight in October: 12h and 0min

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 October: 7h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in October
Dehianga, Sri Lanka

Average sunshine days in October - Dehianga, Sri Lanka
  • Average sunshine days in October: 2.3 days

The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is May (1.2 days).

Average UV index in October
Dehianga, Sri Lanka

Average UV index in October - Dehianga, Sri Lanka
  • Average UV index in October: 5

The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 6).
The month with the lowest UV index is October (UV index 5).

Average cloud cover in October
Dehianga, Sri Lanka

Average cloud cover in October - Dehianga, Sri Lanka
  • Average cloud cover in October: 41

The months with the most cloud cover are November and December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 27).

Average visibility in October
Dehianga, Sri Lanka

Average visibility in October - Dehianga, Sri Lanka
  • Average visibility in October: 9km

The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, November and December (8km).

Dehianga, Sri Lanka

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