October weather forecast
Hanalei, HI

The vast Taro farm fields in the valley of Hanalei, Hawaii, with beautiful cloudy skies and mountains
The vast Taro farm fields in the valley of Hanalei, Hawaii, with beautiful cloudy skies and mountains

Weather in October

October, like September, in Hanalei, Hawaii, is another warm autumn month, with temperature in the range of an average low of 75.4°F (24.1°C) and an average high of 79.5°F (26.4°C).

Temperature

In Hanalei, the average high-temperature in October is essentially the same as in September - a still warm 79.5°F (26.4°C). In October, the average low-temperature is 75.4°F (24.1°C).

Humidity

June through August, October and December, with an average relative humidity of 77%, are the most humid months.

Rainfall

In October, in Hanalei, the rain falls for 18.7 days. Throughout October, 2.05" (52mm) of precipitation is accumulated. Throughout the year, there are 218.4 rainfall days, and 22.13" (562mm) of precipitation is accumulated.

Ocean temperature

The months with the warmest seawater in Hanalei, Hawaii, are September and October, with an average ocean temperature of 80.6°F (27°C).
Note: For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

The average length of the day in October is 11h and 38min.
On the first day of the month, sunrise is at 6:29 am and sunset at 6:25 pm. On the last day of October, sunrise is at 6:41 am and sunset at 6:01 pm HST.

Sunshine

In October, the average sunshine in Hanalei is 8.4h.

UV index

January through August, 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 health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in October interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in October in Hanalei?

In October, in Hanalei, the average high-temperature is 79.5°F (26.4°C), and the average low-temperature is 75.4°F (24.1°C).

What is the most humid month in Hanalei?

June through August, October and December, with an average relative humidity of 77%, are most humid months in Hanalei, Hawaii.

What is the average humidity in October in Hanalei?

The average relative humidity in October in Hanalei, Hawaii, is 77%.

How much does it rain in Hanalei in October?

In Hanalei, Hawaii, in October, during 18.7 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

When is the ocean warmest in Hanalei?

September and October, with an average ocean temperature of 80.6°F (27°C), are months with the warmest seawater in Hanalei.

What is the ocean temperature in October in Hanalei?

In Hanalei, the average seawater temperature in October is 80.6°F (27°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Hanalei have in October?

In Hanalei, the average day length in October is 11h and 38min.

What time are sunrise and sunset in October in Hanalei?

On the first day of October in Hanalei, Hawaii, 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.

How long on average sun shines in October in Hanalei?

In Hanalei, the average sunshine duration in October is 8.4h.

What are the months with the lowest UV index in Hanalei?

The months with the lowest UV index in Hanalei are January through August, October through December, with an average maximum UV index of 6.

What is the UV index intensity in October in Hanalei?

In October, the average daily maximum UV index in Hanalei, Hawaii, is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.

Average temperature in October
Hanalei, HI

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).

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Average pressure in October
Hanalei, HI

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).

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Average wind speed in October
Hanalei, HI

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).

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Average humidity in October
Hanalei, HI

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%).

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Average rainfall in October
Hanalei, HI

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").

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Average rainfall days in October
Hanalei, HI

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).

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Average sea temperature in October
Hanalei, HI

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).

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Average daylight in October /
Average sunshine in October
Hanalei, HI

Average daylight in October / Average sunshine in October - Hanalei, HI
  • Average daylight in October: 11h and 38min

The month with the longest days is June (Average daylight: 13h and 28min).
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).

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Average sunshine days in October
Hanalei, HI

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).

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Average UV index in October
Hanalei, HI

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).

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Average cloud cover in October
Hanalei, HI

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).

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Average visibility in October
Hanalei, HI

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).

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