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
Weather in October
Temperature
Honolulu ushers in October with an average high-temperature of a still warm 81°F (27.2°C), showing a close resemblance to the previous month. The month of October is marked by an average minimum temperature of 75.6°F (24.2°C), slightly cooler than its daytime counterpart.Heat index
October's heat index is estimated at a tropical 86°F (30°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
The average relative humidity in October in Honolulu is 75%.Rainfall
The wettest months are March and October, with an average 1.81" (46mm) of rainfall.Ocean temperature
In Honolulu, the average seawater temperature in October is 80.1°F (26.7°C).Note: Water temperatures ranging between 77°F (25°C) and 84.2°F (29°C) are regarded as very warm, making swimming, diving, and similar water activities pleasurable for extended periods.
Daylight
The average length of the day in October is 11h and 39min.On the first day of October in Honolulu, sunrise is at 6:22 am and sunset at 6:18 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 5:55 pm HST.
Sunshine
The average sunshine in October is 8.2h.UV index
January through June, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 6 during October morphs into the following directions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Notice! The reflection of water and sand increases the UV radiation significantly.
Frequently asked questions
What is the temperature in October in Honolulu?
What is the average humidity in October in Honolulu?
What is the wettest month in Honolulu?
How much does it rain in Honolulu in October?
How warm is the water in October in Honolulu?
How many hours of daylight does Honolulu have in October?
When is the sunrise / sunset in October in Honolulu?
How many hours of sunshine does Honolulu have in October?
What is the month with the lowest UV index in Honolulu?
How high is the UV index in October in Honolulu?
Average temperature in October
Honolulu, HI
- Average high temperature in October: 81°F
The warmest month (with the highest average high temperature) is September (81.5°F).
The months with the lowest average high temperature are February and March (75°F).
- Average low temperature in October: 75.6°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is February (69.1°F).
Average pressure in October
Honolulu, HI
- Average pressure in October: 29.97"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in October
Honolulu, HI
- Average wind speed in October: 9.2mph
The windiest month (with the highest average wind speed) is July (12.1mph).
The calmest month (with the lowest average wind speed) is January (9mph).
Average humidity in October
Honolulu, HI
- Average humidity in October: 75%
The months with the highest relative humidity are February and December (76%).
The months with the lowest relative humidity are April, May, September and November (74%).
Average rainfall in October
Honolulu, HI
- Average rainfall in October: 1.81"
The wettest months (with the highest rainfall) are March and October (1.81").
The driest month (with the least rainfall) is July (0.67").
Average rainfall days in October
Honolulu, HI
- Average rainfall days in October: 18 days
The months with the highest number of rainy days are March and October (18 days).
The month with the least rainy days is January (12.6 days).
Average sea temperature in October
Honolulu, HI
- Average sea temperature in October: 80°F
The best month for swimming (with the highest average sea temperature) is September (80.4°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).
Average daylight in October /
Average sunshine in October
Honolulu, HI
- Average daylight in October: 11h and 4min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in October: 8h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The months with the least sunshine are November and December (Average sunshine: 6h and 30min).
Average sunshine days in October
Honolulu, HI
- Average sunshine days in October: 6.3 days
The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is October (6.3 days).
Average UV index in October
Honolulu, HI
- Average UV index in October: 6
The months with the highest UV index are July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, October, November and December (UV index 6).
Average cloud cover in October
Honolulu, HI
- Average cloud cover in October: 36
The month with the most cloud cover is March (Cloud cover 40).
The months with the least cloud cover are January and September (Cloud cover 33).
Average visibility in October
Honolulu, HI
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Honolulu, Hawaii, USA
Weather forecast for your location
2. Allow the app to use your location
