Lihue, Kauai weather by month & the best time to visit
United States · beach resort · tropical — wet & dry seasons climate

The best time to visit Lihue, Kauai is June — its sunniest month (Sunshine Score 91/100), with July and May close behind. Lihue, Kauai averages about 3,311 hours of sunshine a year. Daytime highs around 26°C / 79°F and roughly 43 mm of rain in June.
When is the best time to visit Lihue, Kauai?
For sunshine, the best time to visit Lihue, Kauai is June, then July and May. The dullest month is March (76/100, 125 mm of rain). The full month-by-month picture is in the table below.
How sunny is Lihue, Kauai?
Lihue, Kauai is one of the sunniest places on Earth: about 3,311 hours of sunshine a year. Conditions barely change through the year — only 15 Sunshine Score points separate June from March. It ranks #48 of 580 destinations in United States for annual sunshine, above the national median of 2,279 hours. The year's 825 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 | 86 | 24° / 75°F | 22° / 72°F | 68 mm | 7 | 25° / 77°F |
| February | 83 | 24° / 75°F | 22° / 72°F | 84 mm | 8 | 24° / 75°F |
| March | 76 | 24° / 75°F | 22° / 72°F | 125 mm | 9 | 24° / 75°F |
| April | 88 | 24° / 75°F | 23° / 73°F | 57 mm | 10 | 24° / 75°F |
| May | 90 | 26° / 79°F | 24° / 75°F | 49 mm | 11 | 26° / 79°F |
| June | 91 | 26° / 79°F | 25° / 77°F | 43 mm | 11 | 26° / 79°F |
| July | 91 | 27° / 81°F | 25° / 77°F | 41 mm | 12 | 26° / 79°F |
| August | 90 | 27° / 81°F | 25° / 77°F | 47 mm | 12 | 27° / 81°F |
| September | 89 | 27° / 81°F | 26° / 79°F | 51 mm | 11 | 27° / 81°F |
| October | 85 | 27° / 81°F | 25° / 77°F | 76 mm | 9 | 27° / 81°F |
| November | 83 | 26° / 79°F | 24° / 75°F | 84 mm | 7 | 26° / 79°F |
| December | 80 | 25° / 77°F | 23° / 73°F | 100 mm | 6 | 26° / 79°F |
Sea temperature in Lihue, Kauai by month
The sea off Lihue, Kauai is warmest in August at around 27°C / 81°F, and coolest in February 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.
Nearest destinations
Head-to-head
How Lihue, Kauai compares month by month: Lihue, Kauai vs Honolulu · Lihue, Kauai vs Kahului · Lihue, Kauai vs Kailua-Kona · all comparisons
Lihue, Kauai: questions and answers
What kind of destination is Lihue, Kauai?
Lihue, Kauai is a beach resort in United States with a tropical — wet & dry seasons climate — the sea reaches 27°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Lihue, Kauai get a year?
Lihue, Kauai gets about 3,311 hours of sunshine a year, at its best around June.
When is the best time to visit Lihue, Kauai?
The sunniest time to visit Lihue, Kauai is June, when the Sunshine Score peaks at 91/100 (with July and May close behind). Expect daytime highs around 26°C / 79°F.
What is the least sunny month in Lihue, Kauai?
March is the least sunny month in Lihue, Kauai, scoring 76/100 with about 125 mm of rain.
What is the sea temperature in Lihue, Kauai?
The sea in Lihue, Kauai ranges from about 24°C (February) to 27°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Lihue, Kauai?
The typical midday UV index in Lihue, Kauai peaks around 12 (extreme) in July, easing to about 6 (high) in December. Month-by-month midday UV values are in the UV column of the table on this page.
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