Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
October
Weather in October
Temperature
The advent of October observes an average high-temperature of a still moderately hot 28.8°C (83.8°F), nearly identical to September's 28.3°C (82.9°F). Delduwa's nighttime temperatures in October reveal a minimal variation from the daytime highs, averaging at a still moderately hot 25.9°C (78.6°F).Heat index
During October, the heat index is estimated at a hot 34°C (93.2°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
The average relative humidity in October is 80%.Rainfall
In Delduwa, during October, the rain falls for 26.3 days and regularly aggregates up to 194mm (7.64") of precipitation. Throughout the year, there are 286.9 rainfall days, and 1974mm (77.72") of precipitation is accumulated.Daylight
The average length of the day in October is 11h and 59min.On the first day of October, sunrise is at 05:57 and sunset at 18:01. On the last day of the month, sunrise is at 05:56 and sunset at 17:50 +0530.
Sunshine
The average sunshine in October is 8.1h.UV index
The months with the highest UV index are January through April, June through August, October through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 7 during October translates into the following guidance:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in October?
What is the average humidity in October?
How much does it rain in Delduwa in October?
What is the average length of the day in October?
When are sunrise and sunset in October?
How long on average sun shines in October?
When is the highest UV index?
How high is the UV index in October?
Average temperature in October
Delduwa, Sri Lanka
- Average high temperature in October: 28.8°C
The warmest months (with the highest average high temperature) are March and April (30.3°C).
The months with the lowest average high temperature are August and September (28.3°C).
- Average low temperature in October: 25.9°C
The month with the highest average low temperature is May (26.7°C).
The coldest month (with the lowest average low temperature) is January (24°C).
Average pressure in October
Delduwa, Sri Lanka
- Average pressure in October: 1010.2mbar
The month with the highest atmospheric pressure is January (1011.4mbar).
The month with the lowest atmospheric pressure is May (1008.9mbar).
Average wind speed in October
Delduwa, Sri Lanka
- Average wind speed in October: 13.5km/h
The windiest month (with the highest average wind speed) is June (20.2km/h).
The calmest month (with the lowest average wind speed) is January (7.8km/h).
Average humidity in October
Delduwa, Sri Lanka
- Average humidity in October: 80%
The months with the highest relative humidity are June and September (82%).
The months with the lowest relative humidity are February and March (77%).
Average rainfall in October
Delduwa, Sri Lanka
- Average rainfall in October: 194mm
The wettest month (with the highest rainfall) is May (302mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in October
Delduwa, Sri Lanka
- Average rainfall days in October: 26.3 days
The month with the highest number of rainy days is June (28 days).
The month with the least rainy days is January (14.8 days).
Average daylight in October /
Average sunshine in October
Delduwa, 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 48min).
- Average sunshine in October: 8h and 1min
The month with the most sunshine is April (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in October
Delduwa, Sri Lanka
- Average sunshine days in October: 1.7 days
The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is June (1 days).
Average UV index in October
Delduwa, Sri Lanka
- Average UV index in October: 7
The months with the highest UV index are January, February, March, April, June, July, August, October, November and December (UV index 7).
The months with the lowest UV index are May and September (UV index 6).
Average cloud cover in October
Delduwa, Sri Lanka
- Average cloud cover in October: 46
The month with the most cloud cover is June (Cloud cover 51).
The month with the least cloud cover is February (Cloud cover 26).
Average visibility in October
Delduwa, Sri Lanka
- Average visibility in October: 9km
The months with the highest visibility are January, February, March, April, June and December (10km).
The months with the lowest visibility are May, July, August, September, October and November (9km).
