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 sea temperature 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
October's average high-temperature stands at a still tropical 32.1°C (89.8°F), showing little deviation from September's 32.2°C (90°F). Nighttime temperatures hover around an average low of 24.2°C (75.6°F) in October.Heat index
In October, the heat index is calculated to be a blazing hot 45°C (113°F). Stay vigilant: Heat cramps along with heat exhaustion are expected. Heatstroke may follow prolonged exertion.Understanding the heat index involves considering values for shaded locales with light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
In Dumai, the average relative humidity in October is 80%.Rainfall
October is the month with the most rainfall. Rain falls for 25.5 days and accumulates 142mm (5.59") of precipitation.Sea temperature
In October, the average sea temperature is 29.7°C (85.5°F).Note: Between the temperatures of 25°C (77°F) and 29°C (84.2°F), water is considered very warm, providing pleasure in water activities without discomfort over lengthy periods.
Daylight
The average length of the day in October is 12h and 5min.On the first day of the month, sunrise is at 06:00 and sunset at 18:06. On the last day of October, sunrise is at 05:56 and sunset at 17:59 WIB.
Sunshine
October has the most sunshine of the year, with an average of 8.8h of sunshine.UV index
The months with the lowest UV index in Dumai are October and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The daily maximum UV index of 6 in October interprets into the following advice:
Deflect overexposure. Sun protection is a necessity. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Dumai in October?
What is the average humidity in October?
What is the wettest month?
How many days does it rain in October?
What is the sea water temperature in October?
How many hours of daylight does Dumai have in October?
What time are sunrise and sunset in October?
What month has the most sunshine?
How many hours of sunshine does Dumai have in October?
What is the month with the lowest UV index?
How high is the UV index in October?
Average temperature in October
Dumai, Indonesia
- Average high temperature in October: 32.1°C
The warmest month (with the highest average high temperature) is June (32.8°C).
The months with the lowest average high temperature are January and December (30.6°C).
- Average low temperature in October: 24.2°C
The month with the highest average low temperature is May (24.7°C).
The coldest month (with the lowest average low temperature) is December (23.7°C).
Average pressure in October
Dumai, Indonesia
- Average pressure in October: 1009.7mbar
The months with the highest atmospheric pressure are January and February (1010.3mbar).
The month with the lowest atmospheric pressure is May (1008.8mbar).
Average wind speed in October
Dumai, Indonesia
- Average wind speed in October: 4.8km/h
The windiest month (with the highest average wind speed) is February (5.8km/h).
The calmest month (with the lowest average wind speed) is April (4.5km/h).
Average humidity in October
Dumai, Indonesia
- Average humidity in October: 80%
The months with the highest relative humidity are November and December (83%).
The month with the lowest relative humidity is February (78%).
Average rainfall in October
Dumai, Indonesia
- Average rainfall in October: 142mm
The wettest month (with the highest rainfall) is October (142mm).
The driest month (with the least rainfall) is February (52mm).
Average rainfall days in October
Dumai, Indonesia
- Average rainfall days in October: 25.5 days
The month with the highest number of rainy days is November (26.4 days).
The month with the least rainy days is February (18.7 days).
Average sea temperature in October
Dumai, Indonesia
- Average sea temperature in October: 29.7°C
The best months for swimming (with the highest average sea temperature) are May and June (30.2°C).
The coldest month (with the lowest average sea temperature) is January (28.4°C).
Average daylight in October /
Average sunshine in October
Dumai, Indonesia
- Average daylight in October: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 0min).
- Average sunshine in October: 8h and 5min
The month with the most sunshine is October (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in October
Dumai, Indonesia
- Average sunshine days in October: 4 days
The month with the most sunshine days is June (7.2 days).
The month with the least sunshine days is November (3 days).
Average UV index in October
Dumai, Indonesia
- Average UV index in October: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September and November (UV index 7).
The months with the lowest UV index are October and December (UV index 6).
Average cloud cover in October
Dumai, Indonesia
- Average cloud cover in October: 45
The month with the most cloud cover is November (Cloud cover 54).
The months with the least cloud cover are February and June (Cloud cover 39).
Average visibility in October
Dumai, Indonesia
- Average visibility in October: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are November and December (8km).
