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Kona in July: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Kona in July is climatically well suited to beach holidays, family holidays and city breaks. The average daily high is around 26 °C, and the sea is about 27 °C. With about 12 rainy days it is wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
80/100 · #3
Warmth
#4
Dryness
#4
Sun
#1
Sea warmth
#4
Published best categories: Overall, Beach, Family
Kona · JulyPhoto: Ken Lund from Reno, Nevada, USA · CC BY-SA 2.0Climate facts
- Average high
- 26 °C
- Average low
- 25 °C
- Sea
- 27 °C
- Rainy days (est.)
- 12 rainy days (est.)
- Sun (est.)
- 9 h/day
- Humidity
- 78 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| June | 26 | 25 | 13 | 43 | 8.6 | 77 | 2.6 | 26 | 78 |
| July (selected) | 26 | 25 | 12 | 45 | 8.7 | 78 | 2.5 | 27 | 80 |
| August | 27 | 26 | 12 | 57 | 8.6 | 77 | 2.5 | 27 | 78 |
How do the previous and next months compare?
Baseline: July (80/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| June | -2 | -0.6 °C | -0.6 °C | +1.4 | -1.7 mm | -0.1 h | -0.3 % | ±0 m/s | -0.5 °C |
| August | -2 | +0.5 °C | +0.4 °C | -0.1 | +12.3 mm | -0.1 h | -0.5 % | ±0 m/s | +0.5 °C |
All twelve months in context

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Useful next decisions
Frequently asked questions
How warm is Kona in July?
The average daily high is around 26 °C, with an average daily low of about 25 °C.
Can you swim in Kona in July?
The sea is about 27 °C (warm).
Does it rain a lot in Kona in July?
The curated estimate is about 12 rainy days per month, not a directly measured long-term average. Total precipitation averages around 45 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Kona?
By the climate score, January, February, April and July are the strongest months for Kona. For a beach trip: February, June, July and August. July is one of them.