October weather forecast
Gonahena, Sri Lanka

October

Weather in October

October is a hot autumn month in Gonahena, Sri Lanka, with an average temperature ranging between max 30°C (86°F) and min 25°C (77°F).

Temperature

The ushering in of October brings an average high-temperature of a hot 30°C (86°F), closely mirroring the 29.1°C (84.4°F) of September. Gonahena's nighttime temperature in October shows a minor descent, with a steady average of 25°C (77°F).

Heat index

In October, the average heat index is estimated at a sweltering 38°C (100.4°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

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

Rainfall

In Gonahena, in October, it is raining for 27 days, with typically 237mm (9.33") of accumulated precipitation. In Gonahena, during the entire year, the rain falls for 289.4 days and collects up to 2262mm (89.06") 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 05:57 and sunset at 18:01. On the last day of October, sunrise is at 05:57 and sunset at 17:50 +0530.

Sunshine

In Gonahena, the average sunshine in October is 7.7h.

UV index

The months with the lowest UV index in Gonahena are May, June, August and October, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In October, a regular UV index of 6 translates into these guidelines:
Take precautions against overexposure. Protection against sun damage is needed. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Frequently asked questions

How hot is October in Gonahena?
In October, in Gonahena, the average high-temperature is 30°C (86°F), and the average low-temperature is 25°C (77°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in October is estimated at 38°C (100.4°F).
What is the average humidity in October in Gonahena?
The average relative humidity in October in Gonahena, Sri Lanka, is 80%.
How much does it rain in Gonahena in October?
In Gonahena, in October, during 27 rainfall days, 237mm (9.33") of precipitation is typically accumulated.
How many hours of daylight does Gonahena have in October?
The average day length in October in Gonahena is 11h and 58min.
What time are sunrise and sunset in October in Gonahena?
On the first day of October in Gonahena, sunrise is at 05:57 and sunset at 18:01. On the last day of the month, sunrise is at 05:57 and sunset at 17:50 +0530.
How long on average sun shines in October in Gonahena?
In Gonahena, the average sunshine duration in October is 7.7h.
What are the months with the lowest UV index in Gonahena?
The months with the lowest UV index in Gonahena, Sri Lanka, are May, June, August and October, with an average maximum UV index of 6.
How high is the UV index in October in Gonahena?
In Gonahena, the average daily maximum UV index in October is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from 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
Gonahena, Sri Lanka
  • Average high temperature in October: 30°C

The warmest months (with the highest average high temperature) are March and April (31.8°C).
The months with the lowest average high temperature are July and August (28.9°C).

  • Average low temperature in October: 25°C

The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is January (23.1°C).

Average pressure in October
Gonahena, Sri Lanka
  • Average pressure in October: 1009.9mbar

The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).

Average wind speed in October
Gonahena, Sri Lanka
  • Average wind speed in October: 10.2km/h

The windiest month (with the highest average wind speed) is June (15.1km/h).
The calmest month (with the lowest average wind speed) is March (8km/h).

Average humidity in October
Gonahena, Sri Lanka
  • Average humidity in October: 80%

The months with the highest relative humidity are June, July and August (83%).
The months with the lowest relative humidity are January and February (74%).

Average rainfall in October
Gonahena, Sri Lanka
  • Average rainfall in October: 237mm

The wettest month (with the highest rainfall) is June (341mm).
The driest month (with the least rainfall) is January (40mm).

Average rainfall days in October
Gonahena, Sri Lanka
  • Average rainfall days in October: 27 days

The month with the highest number of rainy days is August (30.2 days).
The month with the least rainy days is January (11.6 days).

Average daylight in October /
Average sunshine in October
Gonahena, 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 4min

The month with the most sunshine is January (Average sunshine: 9h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).

Average sunshine days in October
Gonahena, Sri Lanka
  • Average sunshine days in October: 1.7 days

The month with the most sunshine days is January (17.2 days).
The months with the least sunshine days are June and August (0.3 days).

Average UV index in October
Gonahena, Sri Lanka
  • Average UV index in October: 6

The months with the highest UV index are January, February, March, April, July, September, November and December (UV index 7).
The months with the lowest UV index are May, June, August and October (UV index 6).

Average cloud cover in October
Gonahena, Sri Lanka
  • Average cloud cover in October: 49

The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 24).

Average visibility in October
Gonahena, Sri Lanka
  • Average visibility in October: 9km

The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are May, June, July, August, September, October and November (9km).

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