KonaPhoto: Ken Lund from Reno, Nevada, USA · CC BY-SA 2.0USA · North America
Best time to visit Kona
The Kona coast on Hawaii's Big Island is the sunny, dry side of the island: lava beaches, snorkelling with mantas, coffee plantations and the volcano inland. Warm and pleasant all year.
Climate decision
Best travel months for Kona
Top recommendation
Next highest scores
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Latest 5-year values 2021–2025
Average of the five most recent complete years compared with the 1991–2025 climate average.
May · Wet days
22.4 days/month
1991–2025: 13.5 days/month
+8.9 days/month · higher
May · Monthly precipitation
115.9 mm/month
1991–2025: 60.4 mm/month
+55.5 mm/month · higher
September · Sea temperature
27.3 °C
1991–2025: 27.2 °C
+0.1 °C · similar
August: 0/155 days at or above 30 °C; highest single value 29 °C.
Five-year historical sample, not a weather forecast or long-term climate trend. Individual hot days can be far above the monthly mean.
Annual profile · Balanced signals
Kona: no single climate figure decides
Choose a suitable temperature range first, then compare rain, sunshine and the intended trip style within that window.
Average daily highs vary by 2.3 °C and rainy days by 5.4. Temperature, dryness and sunshine should therefore be considered together.
The useful trade-off
Highest average daily high
August, September and October · 26.9 °C
Fewest rainy days
January · 11.3
Most sunshine
July · 8.7 h
Warmest sea
September · 27.2 °C
Month by month
Overall suitability per month. Tap a month for details.
All climate figures compared
The table is the complete accessible data view; the charts below highlight selected patterns.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Rain mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| January | 25 | 24 | 11 | 80 | 5.9 | 73 | 2.9 | 25 | 82 |
| February | 25 | 23 | 12 | 73 | 6.7 | 73 | 3.0 | 25 | 83 |
| March | 25 | 23 | 17 | 110 | 7.4 | 74 | 2.8 | 25 | 74 |
| April | 25 | 24 | 14 | 67 | 8.2 | 75 | 2.5 | 25 | 79 |
| May | 25 | 24 | 13 | 60 | 8.5 | 77 | 2.6 | 26 | 78 |
| June | 26 | 25 | 13 | 43 | 8.6 | 77 | 2.6 | 26 | 78 |
| July | 26 | 25 | 12 | 45 | 8.7 | 78 | 2.5 | 27 | 80 |
| August | 27 | 26 | 12 | 57 | 8.6 | 77 | 2.5 | 27 | 78 |
| September | 27 | 26 | 12 | 41 | 8.0 | 77 | 2.5 | 27 | 78 |
| October | 27 | 26 | 12 | 52 | 7.0 | 76 | 2.4 | 27 | 78 |
| November | 26 | 25 | 13 | 78 | 6.0 | 74 | 2.5 | 27 | 77 |
| December | 26 | 24 | 13 | 82 | 5.5 | 73 | 2.7 | 26 | 78 |
Climate through the year
Compare temperature, rainy days, sunshine and, for coastal destinations, sea temperature month by month.
Find a place to stay
Where to stay in Kona
Compare available stays, prices and cancellation terms for Kona on Booking.com.
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Useful next decisions
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Similar destinations
The number is the overall climate score, not a similarity score.
Country and region
Frequently asked questions
When is the best time to visit Kona?
The strongest climate months are January, February, April, July. Values are historical averages, not a forecast.
Which month has the highest average daily maximum temperature in Kona?
Average daily maximum temperatures in Kona are practically tied in August, September and October at around 27 °C.
When is the sea warmest at Kona?
In September, at around 27 °C.