October weather forecastHanalei, HI
October
Weather in October
October offers Hanalei residents a welcome respite from the September heat, setting the stage for cooler weather as the year continues its course. The key indicator of October's weather transformation is a decline in the daily amount of sunshine to 8.4 hours. The rest of the weather attributes predominantly remain consistent with previous months, successfully leading into the cooler November.Temperature
Hanalei's entry into October measures an average high-temperature of a still warm 79.5°F (26.4°C), closely parallel to the preceding month. Hanalei, in the month of October, notes an average low temperature of 75.4°F (24.1°C), indicating a small decrease from the daytime highs.Humidity
The months with the highest humidity are June through August, October and December, with an average relative humidity of 77%.Rainfall
In Hanalei, during October, the rain falls for 18.7 days and regularly aggregates up to 2.05" (52mm) of precipitation. In Hanalei, during the entire year, the rain falls for 218.4 days and collects up to 22.13" (562mm) of precipitation.Ocean temperature
September and October, with an average ocean temperature of 80.6°F (27°C), are months with the warmest seawater.Note: Engaging in swimming, diving, or other water activities is highly enjoyable in temperatures ranging from 77°F (25°C) to 84.2°F (29°C), without any unpleasant sensations for prolonged durations.
Daylight
In October, the average length of the day is 11h and 38min.On the first day of October, sunrise is at 6:29 am and sunset at 6:25 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:01 pm HST.
Sunshine
In Hanalei, the average sunshine in October is 8.4h.UV index
The months with the lowest UV index are January through August, October through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: In October, the maximum UV index of 6 suggests these recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Hanalei, HI
- Average high temperature in October: 79.5°F
The warmest month (with the highest average high temperature) is September (79.7°F).
The months with the lowest average high temperature are February and March (73.2°F).
- Average low temperature in October: 75.4°F
The month with the highest average low temperature is September (75.9°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).
Average pressure in October
Hanalei, HI
- Average pressure in October: 29.98"Hg
The month with the highest atmospheric pressure is April (30.07"Hg).
The months with the lowest atmospheric pressure are September and October (29.98"Hg).
Average wind speed in October
Hanalei, HI
- Average wind speed in October: 10.5mph
The windiest month (with the highest average wind speed) is July (12.3mph).
The calmest month (with the lowest average wind speed) is January (10mph).
Average humidity in October
Hanalei, HI
- Average humidity in October: 77%
The months with the highest relative humidity are June, July, August, October and December (77%).
The month with the lowest relative humidity is January (75%).
Average rainfall in October
Hanalei, HI
- Average rainfall in October: 2.05"
The wettest month (with the highest rainfall) is March (2.52").
The driest month (with the least rainfall) is April (1.3").
Average rainfall days in October
Hanalei, HI
- Average rainfall days in October: 18.7 days
The month with the highest number of rainy days is August (21.1 days).
The month with the least rainy days is January (12.5 days).
Average sea temperature in October
Hanalei, HI
- Average sea temperature in October: 81°F
The best months for swimming (with the highest average sea temperature) are September and October (81°F).
The coldest months (with the lowest average sea temperature) are January, February, March and April (75°F).
Average daylight in October /
Average sunshine in October
Hanalei, HI
- Average daylight in October: 11h and 36min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in October: 8h and 24min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in October
Hanalei, 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 August (2.9 days).
Average UV index in October
Hanalei, HI
- Average UV index in October: 6
The month with the highest UV index is September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).
Average cloud cover in October
Hanalei, HI
- Average cloud cover in October: 40
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are January and September (Cloud cover 38).
Average visibility in October
Hanalei, 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).
