Is Honolulu sunnier than Kahului?

Kahului is the sunnier: about 3,218 hours of sunshine a year versus 3,113 — a difference of 105 hours.

Which is warmer, Honolulu or Kahului?

Honolulu is warmer across the year: average daytime highs of 27°C (81°F) versus 25°C.

Which is better in winter (November–February), Honolulu or Kahului?

Kahului scores better across November–February: 86/100 average versus 82, with daytime highs around 25°C.

Which has the warmer sea, Honolulu or Kahului?

Both peak at about 27°C (81°F); month-by-month sea temperatures for both are on this page.

Honolulu vs Kahului: which is sunnier?

🇺🇸 United States vs 🇺🇸 United States · 162 km apart · long-term climate normals (NASA POWER, 2001–2020)

Kahului is the sunnier overall: about 3,218 hours of sunshine a year to Honolulu's 3,113. Kahului has the higher Sunshine Score in 7 of 12 months; the other 5 are within 2 points.

Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.

At a glance

	Honolulu	Kahului
Sunshine hours / year	3,113	3,218
Sunniest month	June (91/100)	June (93/100)
Nov–Feb average score	82/100	86/100
Jun–Aug average score	90/100	92/100
Rain / year	771 mm	620 mm
Warmest sea	27°C / 81°F	27°C / 81°F
Peak midday UV	12 (extreme)	12 (extreme)

Honolulu vs Kahului month by month

Month	Sunshine Score		Day high °C		Rain mm		Sea °C
Month	Honolulu	Kahului	Honolulu	Kahului	Honolulu	Kahului	Honolulu	Kahului
January	84	87	25°	24°	71	61	25°	25°
February	82	87	25°	24°	82	63	25°	25°
March	80	83	25°	24°	94	83	24°	24°
April	88	90	26°	24°	54	47	25°	25°
May	89	91	27°	25°	47	37	26°	25°
June	91	93	27°	26°	37	28	26°	26°
July	90	92	28°	26°	40	32	26°	26°
August	89	91	28°	27°	44	40	27°	27°
September	88	91	28°	27°	50	38	27°	27°
October	84	88	28°	27°	73	55	27°	26°
November	82	86	27°	26°	86	65	26°	26°
December	80	85	25°	25°	93	71	26°	26°

The sunnier month by month: Jan Kahului · Feb Kahului · Mar Kahului · Apr even · May even · Jun even · Jul even · Aug even · Sep Kahului · Oct Kahului · Nov Kahului · Dec Kahului.

When to pick which

November–February: Kahului (average score 86/100 vs 82). Daytime highs are similar (26°C vs 25°C). See the winter sun ranking.
March–May: too close to call — Honolulu averages 86/100, Kahului 88/100. Honolulu is the warmer, around 26°C daytime highs vs 24°C.
June–August: too close to call — Honolulu averages 90/100, Kahului 92/100. Honolulu is the warmer, around 28°C daytime highs vs 26°C.
September–October: Kahului (average score 90/100 vs 86). Daytime highs are similar (28°C vs 27°C).

Sea temperature

Both seas peak at 27°C / 81°F. Swimmable water (21°C+): Honolulu all year, Kahului all year. Month-by-month sea temperatures are in the table above.

Full month-by-month guides: Honolulu weather by month · Kahului weather by month · Best time to visit United States.

More comparisons: Honolulu vs Lihue, Kauai · Honolulu vs Kailua-Kona · Honolulu vs Hilo · Kahului vs Lihue, Kauai · Kahului vs Kailua-Kona · Kahului vs Hilo · all head-to-heads