Weather forecast for 10 daysWaimanalo Beach, HI

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 82°F
  • 75°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 20mphENE 62°
  • Humidity: 65%
  • UV index: 10
  • Sunrise: 6:27 am HST
  • Sunset: 6:03 pm HST
  • ▼
Today, in Waimanalo Beach, variable cloud cover will pair with strong breezes.
Temperature shifts will be minor, ranging from a high of a warm 82.4°F to a low of a moderately hot 75.2°F.
The maximum heat index, which adjusts the air temperature based on humidity, is estimated at a humid 86°F. Take into consideration that the heat index values are calculated for shade and light wind conditions.
Today, the maximum temperature is anticipated to be in line with the typical October high of 80.4°F.
Sunrise will be at 6:27 am and sunset at 6:03 pm; the daylight will last for 11h and 36min.

10-day overview

Daily temperatures

Warmest period: today - Tuesday 82°C.
Coldest period: today - Tuesday 82°C.

Chance of precipitation

Highest chance: Tuesday 27.10. 20%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 82°F
  • 75°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 20mphENE 62°
  • Humidity: 65%
  • UV index: 10
  • Sunrise: 6:27 am HST
  • Sunset: 6:03 pm HST
  • ▼
  • Monday
  • Oct 19, 2026
  • 82°F
  • 75°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 19mphENE 66°
  • Humidity: 67%
  • UV index: 10
  • Sunrise: 6:28 am HST
  • Sunset: 6:03 pm HST
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 82°F
  • 75°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 20mphENE 66°
  • Humidity: 63%
  • UV index: 10
  • Sunrise: 6:28 am HST
  • Sunset: 6:02 pm HST
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 82°F
  • 75°F
Sunny
Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 16mphENE 66°
  • Humidity: 65%
  • UV index: 10
  • Sunrise: 6:28 am HST
  • Sunset: 6:01 pm HST
  • ▼
  • Thursday
  • Oct 22, 2026
  • 82°F
  • 75°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 11mphENE 64°
  • Humidity: 65%
  • UV index: 9
  • Sunrise: 6:29 am HST
  • Sunset: 6:00 pm HST
  • ▼
  • Friday
  • Oct 23, 2026
  • 82°F
  • 75°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 11mphNE 55°
  • Humidity: 69%
  • UV index: 9
  • Sunrise: 6:29 am HST
  • Sunset: 6:00 pm HST
  • ▼
  • Saturday
  • Oct 24, 2026
  • 82°F
  • 75°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 12mphNE 51°
  • Humidity: 70%
  • UV index: 7
  • Sunrise: 6:30 am HST
  • Sunset: 5:59 pm HST
  • ▼
  • Sunday
  • Oct 25, 2026
  • 82°F
  • 75°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 14mphNE 51°
  • Humidity: 69%
  • UV index: 7
  • Sunrise: 6:30 am HST
  • Sunset: 5:58 pm HST
  • ▼
  • Monday
  • Oct 26, 2026
  • 82°F
  • 75°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 14mphENE 62°
  • Humidity: 70%
  • UV index: 8
  • Sunrise: 6:31 am HST
  • Sunset: 5:58 pm HST
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 82°F
  • 75°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 14mphENE 73°
  • Humidity: 71%
  • UV index: 7
  • Sunrise: 6:31 am HST
  • Sunset: 5:57 pm HST
  • ▼
It is expected that a combination of dull and bright weather is expected.
Rainfall is not predicted in Waimanalo Beach in the upcoming days.
During the next few days, the maximum temperature will not fluctuate, remaining steady at 82.4°F, while the overnight low will also stay at 75.2°F without change.
Updated: Oct 18, 2026 @ 12:35:31 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, strong gusts will make the partly cloudy skies feel even cooler.

Today, the maximum temperature will be 82.4°F, while the minimum temperature will be 75.2°F. The maximum heat index, which adjusts the air temperature based on humidity, is computed to be 86°F.
The highest temperature today will be in line with the average maximum temperature in October. The lowest temperature will be also in line with the average low of 77°F.

On Sunday, in Waimanalo Beach, sunrise will be at 6:27 am and sunset at 6:03 pm (HST).

Today, the daylight will last for 11h and 36min.