Kona (Big Island) in May
In May, Kona (Big Island) averages 26°C (78°F) during the day and 21°C (70°F) at night, with frequent rain — about 28 days of the month see precipitation (224 mm total).
ShoulderConditions are comfortable for sightseeing without being sweltering. Expect daily rain or showers, often in heavy bursts.
May offers comfortable temperatures in Kona (Big Island), with some rain to plan around.
How May compares to the rest of the year in Kona (Big Island)
May is in the middle of the year for warmth in Kona (Big Island) (7th of 12) and moderately rainy compared to the rest of the year (4th of 12). Daytime temperature matches the city's annual average. May runs roughly the same as April (25°C) and warms a further 1°C into June (26°C).
May sunrise & sunset in Kona (Big Island)
Times shown for Kona (Big Island) local time (Pacific/Honolulu), calculated for the 15th of May. They shift by a few minutes day to day across the month.
Photography light in Kona (Big Island) — May
Golden-hour and blue-hour windows for the 15th of May, in Kona (Big Island)'s local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Kona (Big Island) in May
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 May's tier (Shoulder) and Kona (Big Island)'s popularity.
Crowds & pricing — May in Kona (Big Island)
Kona (Big Island) is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Why this tier: comfortable tourism weather
Sun & mosquito risk — May in Kona (Big Island)
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) — May
Across the year Kona (Big Island)'s sea swings from 25°C (March) to 27.3°C (September) — May sits at 26°C.
Kona (Big Island) in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow 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 May weather
🌍 See the full ranked list of climate twins for Kona (Big Island) in May →
Frequently asked questions
How hot is Kona (Big Island) in May?
In May, Kona (Big Island) averages a high of 26°C (78°F) and a low of 21°C (70°F) — generally warm.
Does it rain a lot in Kona (Big Island) in May?
May is quite rainy in Kona (Big Island), with about 28 rainy days on average.
Is May a good time to visit Kona (Big Island)?
May 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 May?
Pack light layers for warm days and cooler evenings, plus a compact umbrella or rain jacket. See the full May packing list for Kona (Big Island) for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.