October weather forecast
Dehianga, Sri Lanka

October

Weather in October

October, like September, in Dehianga, Sri Lanka, is another warm autumn month, with temperature in the range of an average high of 29.4°C (84.9°F) and an average low of 20.7°C (69.3°F).

Temperature

Dehianga's average high-temperature marks a still moderately hot 29.4°C (84.9°F) with the advent of October, closely mirroring that of the preceding month. In Dehianga, the average nighttime temperature during October is an agreeable 20.7°C (69.3°F).

Heat index

October's heat index is evaluated at a very hot 36°C (96.8°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

The average relative humidity in October is 80%.

Rainfall

October is the month with the most rainfall. Rain falls for 27.4 days and accumulates 301mm (11.85") of precipitation.

Daylight

In Dehianga, the average length of the day in October 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 reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 5 in October translates into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

How hot is it in October?
The average high-temperature and low-temperature during October are 29.4°C (84.9°F) and 20.7°C (69.3°F) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in October is evaluated at 36°C (96.8°F).
What is the average humidity in October?
In Dehianga, the average relative humidity in October is 80%.
What is the rainiest month?
October is the month with the most rainfall. Rain falls for 27.4 days and accumulates 301mm (11.85") of precipitation.
How many days does it rain in October?
In Dehianga, in October, it is raining for 27.4 days, with typically 301mm (11.85") of accumulated precipitation.
What is the average length of the day in October?
In October, the average day length is 11h and 58min.
When is the sunrise / sunset in October?
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, sunrise is at 05:55 and sunset at 17:47 +0530.
How long on average sun shines in October?
In October, the average sunshine duration is 7.9h.
What is the month with the lowest UV index?
October is the month with the lowest UV index, with an average maximum UV index of 5.
What is the UV index intensity in October?
In Dehianga, the average daily maximum UV index in October is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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).

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