October weather forecast and climate
Waialua, HI

Weather in October

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

Temperature

In October, the average high-temperature is almost the same as in September - a still moderately hot 81.1°F (27.3°C). The average low-temperature, in October, is 75.4°F (24.1°C).

Heat index

The average heat index is appraised at 85.8°F (29.9°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like pregnancy, wind, metabolic differences, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

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

Rainfall

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

Ocean temperature

In Waialua, the average seawater temperature in October is 79.7°F (26.5°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 11.6h.

Sunshine

In October, the average sunshine is 7.8h.

UV index

January through June, August, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Waialua. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in October interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in October in Waialua?

In October, in Waialua, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 75.4°F (24.1°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in October is appraised at 85.8°F (29.9°C).

What is the average humidity in October in Waialua?

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

What is the rainiest month in Waialua?

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, in October, during 16.4 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

What is the water temperature in October in Waialua?

In Waialua, in October, the average water temperature is 79.7°F (26.5°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 Waialua have in October?

In October, the average length of the day in Waialua, Hawaii, is 11.6h.

How many hours of sunshine does Waialua have in October?

In October, the average sunshine is 7.8h.

What is the month with the lowest UV index in Waialua?

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

What is the UV index intensity in October in Waialua?

The average daily maximum UV index in October in Waialua, Hawaii, is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to the 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

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"

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

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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%

Months with the highest relative humidity are February and December (76%).
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: 11.6h

The month with the longest days is June (Average daylight: 13.4h).
The month with the shortest days is December (Average daylight: 10.8h).

  • Average sunshine in October: 7.8h

The month with the most sunshine is June (Average sunshine: 9.9h).
The month with the least sunshine is November (Average sunshine: 6.2h).

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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

Months with the highest UV index are July and September (UV index 7).
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).
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

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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