Kona (Big Island) in October

In October, Kona (Big Island) averages 27°C (81°F) during the day and 22°C (72°F) at night, with frequent rain — about 25 days of the month see precipitation (138 mm total).

Off-peak

Conditions are warm and beach-friendly. Expect daily rain or showers, often in heavy bursts.

It's peak hurricane season in Kona (Big Island) during October. Travel is possible but expect storm risk, possible flight disruption, and generally lower travel insurance coverage.

27°C
Avg high
22°C
Avg low
25
Rain days
138 mm
Rainfall

How October compares to the rest of the year in Kona (Big Island)

3rd
warmest month of the 12
7th
wettest month of the 12
6%
of yearly rainfall falls in October
11 h 42 min
daylight on the 15th

October is one of the warmest months in Kona (Big Island) (3rd of 12) and moderately rainy compared to the rest of the year (7th of 12). Daytime temperature runs 1°C above the annual average (26°C). October runs roughly the same as September (27°C) and cools 1°C in November (26°C).

October sunrise & sunset in Kona (Big Island)

🌅
Sunrise (15th)
6:18 AM
🌇
Sunset (15th)
6:00 PM
Day length
11 h 42 min

Times shown for Kona (Big Island) local time (Pacific/Honolulu), calculated for the 15th of October. They shift by a few minutes day to day across the month.

Photography light in Kona (Big Island) — October

Golden-hour and blue-hour windows for the 15th of October, in Kona (Big Island)'s local time. Use these for soft warm light (golden) or cool architectural twilight (blue).

🌅 Blue hour (AM)
5:18 AM – 5:58 AM
🌄 Golden hour (AM)
5:58 AM – 6:58 AM
🌇 Golden hour (PM)
5:20 PM – 6:20 PM
🌆 Blue hour (PM)
6:20 PM – 7:00 PM
Milky Way galactic core
Poor
Core barely rises (or hasn't yet returned for the season). Consider a different month.

📅 When to book — Kona (Big Island) in October

Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on October's tier (Off-peak) and Kona (Big Island)'s popularity.

✈ Flights — lead time
3-6 weeks
Cheapest flights of the year. Last-minute deals are real if you can be flexible. ⚠ Peak hazard season — book flexible-change tickets and travel insurance with weather-disruption coverage.
🏨 Lodging — lead time
2-4 weeks
Last-minute bookings work fine. Some seasonal properties close — call ahead if it's a small boutique or beach resort.

Crowds & pricing — October in Kona (Big Island)

Off-peak

This is off-peak for Kona (Big Island) — the lowest prices of the year and the fewest crowds, but with real trade-offs: some restaurants, hotels, and beach businesses may close for the season; weather conditions can make outdoor activities unpredictable; and a handful of seasonal sights run reduced hours or close entirely. Great if you prefer a quiet local rhythm and don't mind the climate giving you reasons to choose indoor activities.

Why this tier: peak hazard season (1 active)

Sun & mosquito risk — October in Kona (Big Island)

☀️ UV Index (noon, 15th)
10.9
Very high
Limit sun exposure between 11 AM and 3 PM; SPF 30-50, reapply every 90 minutes outdoors.
🦟 Mosquito risk
●●●●●
Severe
Severe mosquito season with active disease transmission risk. DEET 30%+, picaridin 20%, long sleeves day and night, treated nets, and check CDC/WHO travel advisories before going.

UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.

Sea temperature in Kona (Big Island) — October

27.1°C (81°F)
bath-warm
tropical and comfortable for hours

Across the year Kona (Big Island)'s sea swings from 25°C (March) to 27.3°C (September) — October sits at 27.1°C.

Kona (Big Island) in other months

MonthAvg highAvg lowRainfallRain daysSnow days
January 25°C / 76°F 19°C / 67°F 97 mm 23
February 25°C / 76°F 19°C / 67°F 118 mm 22
March 25°C / 77°F 20°C / 68°F 111 mm 23
April 25°C / 77°F 21°C / 69°F 207 mm 27
May 26°C / 78°F 21°C / 70°F 224 mm 28
June 26°C / 79°F 22°C / 71°F 301 mm 29
July 27°C / 81°F 23°C / 73°F 296 mm 30
August 27°C / 81°F 23°C / 73°F 278 mm 29
September 27°C / 81°F 23°C / 73°F 206 mm 27
October 27°C / 81°F 22°C / 72°F 138 mm 25
November 26°C / 80°F 21°C / 70°F 103 mm 22
December 25°C / 77°F 20°C / 68°F 134 mm 23

Other cities with similar October weather

🌍 See the full ranked list of climate twins for Kona (Big Island) in October →

Frequently asked questions

How hot is Kona (Big Island) in October?

In October, Kona (Big Island) averages a high of 27°C (81°F) and a low of 22°C (72°F) — generally warm.

Does it rain a lot in Kona (Big Island) in October?

October is quite rainy in Kona (Big Island), with about 25 rainy days on average.

Is October a good time to visit Kona (Big Island)?

October is warm but on the rainy side. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.

What should I pack for Kona (Big Island) in October?

Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full October packing list for Kona (Big Island) for a complete, climate-based checklist.

Open Kona (Big Island) on the interactive map

Check the live 10-day forecast and sunrise/sunset.