October weather forecast
Waialua, HI

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Weather in October

October, the same as September, is another warm autumn month in Waialua, Hawaii, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 75.4°F (24.1°C).

Temperature

In October, the average high-temperature registers at a still moderately hot 81.1°F (27.3°C), nearly identical to September's 81.7°F (27.6°C). Waialua's October nights demonstrate minimal variation from the daytime temperatures, with an average of 75.4°F (24.1°C).

Heat index

During October, the heat index is evaluated at 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. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

The average relative humidity in October in Waialua is 75%.

Rainfall

The months with the most rainfall are February and October, with an average 1.34" (34mm) of precipitation.

Ocean temperature

In Waialua, in October, the average water temperature is 79.7°F (26.5°C).
Note: In any water activity, temperatures between 77°F (25°C) and 84.2°F (29°C) are viewed as magnificent and exceptionally pleasant for prolonged enjoyment.

Daylight

In October, the average length of the day is 11h and 38min.
On the first day of the month, sunrise is at 6:24 am and sunset at 6:19 pm. On the last day of October, sunrise is at 6:35 am and sunset at 5:56 pm HST.

Sunshine

In Waialua, the average sunshine in October is 7.8h.

UV index

The months with the lowest UV index in Waialua, Hawaii, are January through June, August, October through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: An average maximum UV index of 6 in October leads to these recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Warning! The reflection of sand and water increases the UV dose.
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Frequently asked questions

What are the temperatures in Waialua in October?

During October, Waialua experiences an average high-temperature of 81.1°F (27.3°C) and a low-temperature of 75.4°F (24.1°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in October is evaluated at 86°F (30°C).

What is the average humidity in October in Waialua?

In October, the average relative humidity in Waialua is 75%.

What is the rainiest month in Waialua?

The months with the most rainfall are February and October, with an average 1.34" (34mm) of precipitation.

How much does it rain in Waialua in October?

In Waialua, during October, the rain falls for 16.4 days and regularly aggregates up to 1.34" (34mm) of precipitation.

What is the water temperature in October in Waialua?

In Waialua, the average seawater temperature in October is 79.7°F (26.5°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Waialua have in October?

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

When are sunrise and sunset in October in Waialua?

In October, on the first day of the month, sunrise is at 6:24 am and sunset at 6:19 pm. On the last day of the month, in Waialua, Hawaii, sunrise is at 6:35 am and sunset at 5:56 pm HST.

How many hours of sunshine does Waialua have in October?

In Waialua, the average sunshine duration in October is 7.8h.

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

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

What is the UV index reading in October in Waialua?

The average daily maximum UV index in October in Waialua, Hawaii, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.

Average temperature in October
Waialua, HI

Average temperature in October - Waialua, HI
  • Average high temperature in October: 81.1°F

The warmest month (with the highest average high temperature) is September (81.7°F).
The month with the lowest average high temperature is February (75°F).

  • Average low temperature in October: 75.4°F

The months with the highest average low temperature are August and September (75.7°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).

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Average pressure in October
Waialua, HI

Average pressure in October - Waialua, HI
  • Average pressure in October: 29.97"Hg

The month with the highest atmospheric pressure is April (30.06"Hg).
The month with the lowest atmospheric pressure is October (29.97"Hg).

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Average wind speed in October
Waialua, HI

Average wind speed in October - Waialua, HI
  • Average wind speed in October: 9.1mph

The windiest month (with the highest average wind speed) is July (11.6mph).
The calmest month (with the lowest average wind speed) is January (9mph).

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Average humidity in October
Waialua, HI

Average humidity in October - Waialua, 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 May and September (74%).

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Average rainfall in October
Waialua, HI

Average rainfall in October - Waialua, HI
  • Average rainfall in October: 1.34"

The wettest months (with the highest rainfall) are February and October (1.34").
The driest month (with the least rainfall) is July (0.63").

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Average rainfall days in October
Waialua, HI

Average rainfall days in October - Waialua, HI
  • Average rainfall days in October: 16.4 days

The month with the highest number of rainy days is March (17.7 days).
The month with the least rainy days is January (12.5 days).

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Average sea temperature in October
Waialua, HI

Average sea temperature in October - Waialua, HI
  • Average sea temperature in October: 79.6°F

The best month for swimming (with the highest average sea temperature) is September (80.2°F).
The coldest month (with the lowest average sea temperature) is March (75.2°F).

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

Average daylight in October / Average sunshine in October - Waialua, 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 48min).

  • Average sunshine in October: 7h and 5min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).

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Average sunshine days in October
Waialua, HI

Average sunshine days in October - Waialua, HI
  • Average sunshine days in October: 8.3 days

The month with the most sunshine days is January (12.9 days).
The month with the least sunshine days is September (6.5 days).

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Average UV index in October
Waialua, HI

Average UV index in October - Waialua, HI
  • Average UV index in October: 6

The months with the highest UV index are July and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, August, October, November and December (UV index 6).

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Average cloud cover in October
Waialua, HI

Average cloud cover in October - Waialua, HI
  • Average cloud cover in October: 39

The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are January and September (Cloud cover 37).

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Average visibility in October
Waialua, HI

Average visibility in October - Waialua, 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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Waialua, Hawaii, USA

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