October weather forecast
Peradeniya, Sri Lanka

October

Weather in October

October, like September, in Peradeniya, Sri Lanka, is another warm 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 advent of October, Peradeniya experiences an average high-temperature of a still moderately hot 29.4°C (84.9°F), mirroring a close resemblance to the previous month. Throughout October, Peradeniya witnesses a nighttime temperature average of 20.7°C (69.3°F).

Heat index

October's average heat index is appraised at a sweltering 36°C (96.8°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In October, the average relative humidity is 80%.

Rainfall

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

Daylight

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

Sunshine

The average sunshine in October is 7.9h.

UV index

With an average maximum UV index of 5, October is the month with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 5 in October translates into this advice:
Exercise prevention - Warding off sunburn is urged. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

How hot is October in Peradeniya?
In October, in Peradeniya, the average high-temperature is 29.4°C (84.9°F), and the average low-temperature is 20.7°C (69.3°F). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in October is appraised at 36°C (96.8°F).
What is the average humidity in October?
In October, the average relative humidity 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 much does it rain in October?
In October, the rain falls for 27.4 days. Throughout October, 301mm (11.85") of precipitation is accumulated.
How many hours of daylight does Peradeniya have 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 17:58. On the last day of the month, sunrise is at 05:55 and sunset at 17:47 +0530.
How many hours of sunshine does Peradeniya have 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 reading in October?
In Peradeniya, the average daily maximum UV index in October is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Peradeniya, 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
Peradeniya, 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
Peradeniya, 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
Peradeniya, 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
Peradeniya, 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
Peradeniya, 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
Peradeniya, 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
Peradeniya, 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
Peradeniya, 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
Peradeniya, 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
Peradeniya, 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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