October weather forecastAiea, HI
October
Weather in October
October illuminates Aiea with a reflective autumn glow. The weather gradually stepping away from the spirited summer vivacity, inches closer towards the placid Hawaiian winter. Daylight hours begin to shrink while the temperature scale gently slides downhill. The city embraces yet another distinctive aspect in October, observing the year's most considerable rainfall at 1.81" (46mm), signifying the official beginning of the cooler and wet months.Temperature
Aiea's average high-temperature marks a still warm 81°F (27.2°C) with the advent of October, closely mirroring that of the preceding month. Aiea reports an average low temperature of 75.6°F (24.2°C) in October, a minor decrease from the day's highs.Heat index
The heat index in October is computed to be a hot 86°F (30°C). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.When referencing the heat index, its values are suitable for shady environments and light breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', comes about by integrating the temperature readings with the humidity levels. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are primarily vital for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
The average relative humidity in October is 75%.Rainfall
The wettest months are March and October, with an average 1.81" (46mm) of rainfall.Ocean temperature
In Aiea, in October, the average water temperature is 80.1°F (26.7°C).Note: Water temperatures in the range of 77°F (25°C) to 84.2°F (29°C) are warm and delightful, ensuring comfort during water activities over extended periods.
Daylight
In Aiea, the average length of the day in October is 11h and 39min.On the first day of the month, sunrise is at 6:23 am and sunset at 6:18 pm. On the last day of October, sunrise is at 6:34 am and sunset at 5:55 pm HST.
Sunshine
In October, the average sunshine 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 radiation for the average person.Note: The daily high UV index of 6 during October translates into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Aiea, 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
Aiea, 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
Aiea, 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
Aiea, 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
Aiea, 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
Aiea, 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
Aiea, 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
Aiea, HI
- Average daylight in October: 11h and 36min
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 12min
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
Aiea, 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
Aiea, 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
Aiea, 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
Aiea, 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).
