Climate guide for Honolulu, United States

Best Time to Visit
Honolulu

How to read the score (0–10)
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01 · United States

About Honolulu

Waikiki's beach and break are the center of gravity, but the city also holds the Punchbowl crater cemetery, the murals of Kaka'ako, and the Bishop Museum's Hawaiian collections. The cooler winter months, January through March, overlap with humpback whale sightings offshore. Trade winds usually keep the heat manageable, and a light layer helps on evening beach walks.

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Did you know?

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Travel Tips

01Best time & timing
July leads the year at 9.9/10, with August and June close behind — December (8.2/10) is the one to avoid without a specific reason.
02Weather & what to pack
In July plan for about 26°C; the month brings 28 mm of rain. Pack the lightest clothing you own, a hat and more water than feels necessary.
03Crowds & value
Crowds build in July and rates follow; June usually pairs good conditions (9.8/10) with the lowest prices of the strong months.

Things to do in Honolulu

Honolulu, United States. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Honolulu: the short answer

Plan Honolulu for July, with August, June close behind — the stretch with the most usable temperatures and the fewest lost days to rain: July averages 26°C with 28 mm of rain and about 31 days with 6+ hours of sunshine. The months to avoid unless you have a specific reason are December, January. If budget matters more than perfect weather, February is the strongest of the low-rate months at 8.6/10.

Across the year Honolulu swings from 23°C in February to 27°C in September, a 4-degree spread, while rainfall ranges from 20 mm in June to 68 mm in February. In short, Honolulu is not equally good year-round — the gap between its best and worst month is 1.7 points on the same 10-point scale.

Warmest month: September (27°C). Coolest: February (23°C). Driest: June (20 mm). Wettest: February (68 mm).

Honolulu month by month

January in Honolulu — reliably good (11th best month)

Good · 8.2/10

With 24°C (74°F) on average, January delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.

Budget for roughly 62 mm of rain this month — a flexible day or two helps — with about 16 days with 6+ hours of sunshine and 10.8 hours of daylight to work around it.

That is 8.2/10 on the same scale — 11th of 12 months, versus 9.9/10 for the best month here.

Expect low-season pricing, and crowds are light for this destination.

Pack light clothing, swimwear and real sun protection, a packable rain layer.

If your dates are flexible, July is materially better in Honolulu — 1.7 points higher on the same scale.

February ranks 9th of 12 for Honolulu — one of the best windows

Best window · 8.6/10

With 23°C (74°F) on average, February delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.

Budget for roughly 68 mm of rain this month — a flexible day or two helps — with about 19 days with 6+ hours of sunshine and 11.3 hours of daylight to work around it.

On our climate-comfort scale this is one of the strongest months of the year for Honolulu at 8.6/10 (9th of 12), just behind July at 9.9/10.

Budget for low-season pricing, and crowds are light for this destination.

Pack light clothing, swimwear and real sun protection, a packable rain layer.

March is one of the strongest months in Honolulu (8th)

Best window · 9.1/10

March averages 24°C (75°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

Rainfall runs 64 mm, so plan one flexible day in three; you still get about 26 days with 6+ hours of sunshine and 11.9 hours of daylight.

A 9.1/10 puts this among the year's best months in Honolulu (8th of 12); only July scores higher, at 9.9/10.

Figure on mid-season pricing, with crowds are moderate.

Pack light clothing, swimwear and real sun protection, a packable rain layer.

April in Honolulu — one of the year's strongest windows (6th)

Best window · 9.4/10

With 24°C (75°F) on average, April delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.

Budget for roughly 49 mm of rain this month — a flexible day or two helps — with about 28 days with 6+ hours of sunshine and 12.5 hours of daylight to work around it.

On our climate-comfort scale this is one of the strongest months of the year for Honolulu at 9.4/10 (6th of 12), just behind July at 9.9/10.

Budget for mid-season pricing, and crowds are moderate.

Pack light clothing, swimwear and real sun protection, a packable rain layer.

May ranks 7th of 12 for Honolulu — one of the best windows

Best window · 9.4/10

May averages 25°C (76°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

Rainfall runs 53 mm, so plan one flexible day in three; you still get about 31 days with 6+ hours of sunshine and 13 hours of daylight.

A 9.4/10 puts this among the year's best months in Honolulu (7th of 12); only July scores higher, at 9.9/10.

Plan for mid-season pricing, with crowds are moderate.

Pack light clothing, swimwear and real sun protection, a packable rain layer.

June ranks 3rd of 12 for Honolulu — one of the best windows

Best window · 9.8/10

With 26°C (78°F) on average, June delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.

With around 20 mm of rain, any showers tend to pass through rather than settle in; about 30 days with 6+ hours of sunshine and 13.3 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Honolulu at 9.8/10 (3rd of 12), just behind July at 9.9/10.

Expect mid-season pricing, and crowds are moderate.

Pack light clothing, swimwear and real sun protection.

July in Honolulu tops the year's climate scores

Best window · 9.9/10

Days in July average 26°C (79°F) and humidity near 74% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

With around 28 mm of rain, any showers tend to pass through rather than settle in; about 31 days with 6+ hours of sunshine and 13.2 hours of daylight fill the rest.

On our climate-comfort scale this is the top-ranked month of the year for Honolulu at 9.9/10 — the reference point every other month on this page is measured against.

Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.

August ranks 2nd of 12 for Honolulu — one of the best windows

Best window · 9.9/10

August averages 27°C (80°F) and humidity near 73%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

Expect 29 mm of rain — occasional showers rather than washed-out days — alongside about 31 days with 6+ hours of sunshine and 12.7 daylight hours.

A 9.9/10 puts this among the year's best months in Honolulu (2nd of 12); only July scores higher, at 9.9/10.

Figure on peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.

September is one of the strongest months in Honolulu (4th)

Best window · 9.8/10

September averages 27°C (80°F) and humidity near 72%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

Expect 24 mm of rain — occasional showers rather than washed-out days — alongside about 30 days with 6+ hours of sunshine and 12.1 daylight hours.

A 9.8/10 puts this among the year's best months in Honolulu (4th of 12); only July scores higher, at 9.9/10.

Figure on mid-season pricing, with crowds are moderate.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.

October is one of the strongest months in Honolulu (5th)

Best window · 9.5/10

Days in October average 27°C (80°F) and humidity near 73% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

With around 42 mm of rain, any showers tend to pass through rather than settle in; about 24 days with 6+ hours of sunshine and 11.5 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Honolulu at 9.5/10 (5th of 12), just behind July at 9.9/10.

Budget for mid-season pricing, and crowds are moderate.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.

November in Honolulu — one of the year's strongest windows (10th)

Best window · 8.6/10

With 25°C (78°F) on average, November delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.

Budget for roughly 46 mm of rain this month — a flexible day or two helps — with about 16 days with 6+ hours of sunshine and 11 hours of daylight to work around it.

On our climate-comfort scale this is one of the strongest months of the year for Honolulu at 8.6/10 (10th of 12), just behind July at 9.9/10.

Budget for low-season pricing, and crowds are light for this destination.

Pack light clothing, swimwear and real sun protection, a packable rain layer.

December holds up well in Honolulu — 12th best month

Good · 8.2/10

December averages 25°C (76°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

Rainfall runs 49 mm, so plan one flexible day in three; you still get about 14 days with 6+ hours of sunshine and 10.7 hours of daylight.

It scores 8.2/10 here, 12th of 12 months, against 9.9/10 in the destination's best month.

Plan for low-season pricing, with crowds are light for this destination.

Pack light clothing, swimwear and real sun protection, a packable rain layer.

Flexible dates? July scores 1.7 points higher here — enough to change the trip.

FAQ

Frequently asked

When is the best time to visit Honolulu, United States?
In Ideal Weather mode, the best months to visit Honolulu are July, August, June, September, October, April. July is the single peak month with an Ideal Weather score of 9.9/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in Honolulu year-round?
Honolulu has a climate profile suited to beach and coastal travel. Average monthly temperatures range from 23°C in February to 27°C in September, with Ideal Weather scores between 8.2 and 9.9 out of 10.
Which months should I avoid in Honolulu?
The lowest Ideal Weather-scoring months in Honolulu are January (8.2/10), December (8.2/10), February (8.6/10). These months typically combine less comfortable temperatures, higher rainfall or fewer days with 6+ hours of sunshine.
When is the rainy season in Honolulu?
February is the wettest month in Honolulu, averaging about 68 mm of rainfall. June is the driest, at roughly 20 mm.
Which is the sunniest month in Honolulu?
May sees the most sun in Honolulu, with about 31 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is Honolulu a good destination for beach and coastal travel?
Honolulu is well suited to beach and coastal travel. Its highest Ideal Weather window (July, August, June, September, October, April) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Honolulu calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Honolulu: temperature comfort, precipitation, humidity, daylight hours, and days with 6+ hours of sunshine - weighted for beach and coastal travel.

Climate data: Open-Meteo ERA5 historical archive, the five most recent complete years (2021–2025). Scores are monthly averages for that window, not forecasts, and short-window precipitation can differ from longer-term normals. “Sunny days” count days with at least 6 hours of measured sunshine — they are not dry days.

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Curated in Honolulu

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