October weather forecast
Mahaiyawa, Sri Lanka

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Weather in October

October, like September, in Mahaiyawa, 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

As Mahaiyawa transitions from September to October, the average high-temperatures adjust to a still warm 29.4°C (84.9°F), nearly the same as the previous 29.5°C (85.1°F). During October, Mahaiyawa witnesses a consistent average low-temperature of 20.7°C (69.3°F).

Heat index

The average heat index in October is estimated at a fiery hot 36°C (96.8°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Records show heat index calculations are tailored for shaded regions and mild winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

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

Sunshine

In Mahaiyawa, 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 exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 5 during October leads to these advisories:
Heed the precautions - It is counselled to guard against solar damage. Minimize direct exposure to the Sun during midday when its radiation is at its peak. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Frequently asked questions

How hot is it in October?

October temperatures vary between a high-temperature of 29.4°C (84.9°F) and a low-temperature of 20.7°C (69.3°F). In October, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated 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?

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.

How many days does it rain in October in Mahaiyawa?

In Mahaiyawa, Sri Lanka, 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 Mahaiyawa, Sri Lanka, the average day length in October is 11h and 58min.

When is the sunrise / sunset in October?

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.

How many hours of sunshine does Mahaiyawa have in October?

In October, the average sunshine duration is 7.9h.

What is the month with the lowest UV index?

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

What is the UV index reading in October?

In Mahaiyawa, the average daily maximum UV index in October is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe 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
Mahaiyawa, Sri Lanka

Average temperature in October - Mahaiyawa, 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
Mahaiyawa, Sri Lanka

Average pressure in October - Mahaiyawa, 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
Mahaiyawa, Sri Lanka

Average wind speed in October - Mahaiyawa, 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
Mahaiyawa, Sri Lanka

Average humidity in October - Mahaiyawa, 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
Mahaiyawa, Sri Lanka

Average rainfall in October - Mahaiyawa, 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
Mahaiyawa, Sri Lanka

Average rainfall days in October - Mahaiyawa, 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
Mahaiyawa, Sri Lanka

Average daylight in October / Average sunshine in October - Mahaiyawa, 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
Mahaiyawa, Sri Lanka

Average sunshine days in October - Mahaiyawa, 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
Mahaiyawa, Sri Lanka

Average UV index in October - Mahaiyawa, 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
Mahaiyawa, Sri Lanka

Average cloud cover in October - Mahaiyawa, 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
Mahaiyawa, Sri Lanka

Average visibility in October - Mahaiyawa, 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).

Mahaiyawa, Sri Lanka

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