Will it rain in Hawaii on Wednesday, October 21, 2026?

Yes, the chance of rain is 95%, with 3.8 mm of rain expected in total.

What will the temperature be in Hawaii on Wednesday, October 21, 2026?

A high of 23°C and a low of 16°C are expected. Conditions: heavy drizzle.

What time are sunrise and sunset in Hawaii on October 21, 2026?

Sunrise is at 06:22 and sunset at 17:56 (local time); day length 11 h 34 min.

How reliable is this forecast?

Forecasts for the first 3 days are usually highly accurate; this page is updated about every 30 minutes.

Weather · United States

Hawaii Weather on Wednesday, October 21, 2026

Hawaii · Wednesday, October 21 2026

23°16°

Heavy drizzle

High 23°, low 16°

Chance of rain: 95%; 3.8 mm
Wind: 14 km/h; west
UV index: 8; High
Sunrise: 06:22; Sunset 17:56
Day length: 11 h 34 min
Moon: Waxing gibbous; 81% illuminated

Updated: 14 h ago · Source: Open-Meteo

Forecast for Hawaii on Wednesday, October 21, 2026: heavy drizzle, with a high of 23°C and a low of 16°C. The chance of rain is 95%, with 3.8 mm of precipitation expected in total. Wind from the west at up to 14 km/h. Sunrise is at 06:22 and sunset at 17:56; day length 11 h 34 min. Temperatures similar to the previous day. Temperatures are close to the 7-day average. The best time to be outdoors looks like 08:00–12:00.

What to wear and what to watch out for

Take an umbrella or a raincoat with you.
Mild weather: light clothing is enough.
High UV index (8): sunscreen, a hat and sunglasses are recommended.

Wednesday, October 21: hour by hour

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Weather nearby on October 21

Frequently asked questions

Will it rain in Hawaii on Wednesday, October 21, 2026?: Yes, the chance of rain is 95%, with 3.8 mm of rain expected in total.
What will the temperature be in Hawaii on Wednesday, October 21, 2026?: A high of 23°C and a low of 16°C are expected. Conditions: heavy drizzle.
What time are sunrise and sunset in Hawaii on October 21, 2026?: Sunrise is at 06:22 and sunset at 17:56 (local time); day length 11 h 34 min.
How reliable is this forecast?: Forecasts for the first 3 days are usually highly accurate; this page is updated about every 30 minutes.