Kahului weather by month & the best time to visit
🇺🇸 United States · beach resort · semi-arid climate
The best time to visit Kahului is June — its sunniest month (Sunshine Score 93/100), with July and May close behind. Kahului averages about 3,218 hours of sunshine a year. Daytime highs around 26°C / 79°F and roughly 28 mm of rain in June.
Jump to: month-by-month table · sea temperature · nearby alternatives · embed this data
- Sun hours / year
- 3,218
- Sunniest month
- June
- Peak score
- 93/100
- Rain / year
- 620 mm
- Midday UV at peak
- 12 (extreme)
- Sea at warmest
- 27°C / 81°F
- Population
- 26k
- Elevation
- 9 m
When is the best time to visit Kahului?
For sunshine, the best time to visit Kahului is June, then July and May. The dullest month is March (83/100, 83 mm of rain). The full month-by-month picture is in the table below.
How sunny is Kahului?
Kahului is one of the sunniest places on Earth: about 3,218 hours of sunshine a year. Conditions barely change through the year — only 10 Sunshine Score points separate June from March. It ranks #58 of 580 destinations in United States for annual sunshine, above the national median of 2,279 hours. The year's 620 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 87 | 24° / 75°F | 23° / 73°F | 61 mm | 7 | 25° / 77°F |
| February | 87 | 24° / 75°F | 22° / 72°F | 63 mm | 8 | 25° / 77°F |
| March | 83 | 24° / 75°F | 22° / 72°F | 83 mm | 9 | 24° / 75°F |
| April | 90 | 24° / 75°F | 23° / 73°F | 47 mm | 10 | 25° / 77°F |
| May | 91 | 25° / 77°F | 23° / 73°F | 37 mm | 10 | 25° / 77°F |
| June | 93 | 26° / 79°F | 24° / 75°F | 28 mm | 11 | 26° / 79°F |
| July | 92 | 26° / 79°F | 25° / 77°F | 32 mm | 11 | 26° / 79°F |
| August | 91 | 27° / 81°F | 25° / 77°F | 40 mm | 12 | 27° / 81°F |
| September | 91 | 27° / 81°F | 25° / 77°F | 38 mm | 11 | 27° / 81°F |
| October | 88 | 27° / 81°F | 25° / 77°F | 55 mm | 9 | 26° / 79°F |
| November | 86 | 26° / 79°F | 24° / 75°F | 65 mm | 7 | 26° / 79°F |
| December | 85 | 25° / 77°F | 23° / 73°F | 71 mm | 6 | 26° / 79°F |
Sea temperature in Kahului by month
The sea off Kahului is warmest in August at around 27°C / 81°F, and coolest in March at 24°C / 75°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Kahului on the interactive sunshine globe →
Nearby places for sunshine
- Kailua-Kona United States · 135 km · best in Jun · 3,315 h sun/yr
- Honolulu United States · 162 km · best in Jun · 3,113 h sun/yr
- Hilo United States · 195 km · best in Jun · 2,716 h sun/yr
- Lihue, Kauai United States · 324 km · best in Jun · 3,311 h sun/yr
- Santa Rosa United States · 3,760 km · best in Jul · 3,311 h sun/yr
- San Francisco United States · 3,761 km · best in Sep · 2,879 h sun/yr
Nearest destinations
- Lahaina United States · 26 km · 3,218 h sun/yr · best in Jun
- Hana United States · 45 km · 3,218 h sun/yr · best in Jun
- Lanai City United States · 55 km · 3,218 h sun/yr · best in Jun
- Kalaupapa United States · 66 km · 3,177 h sun/yr · best in Jun
- Kaunakakai United States · 75 km · 3,112 h sun/yr · best in Jun
Head-to-head
How Kahului compares month by month: Kahului vs Honolulu · Kahului vs Lihue, Kauai · Kahului vs Kailua-Kona · Kahului vs Hilo · all comparisons
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