United States Honolulu Weather in April — Climate Guide
April in Honolulu is very-high
Honolulu Weather in April — Quick Answer
As of 2026- Avg temp
- 28° / 21°
- Rainfall
- 30mm · 6 days
- Crowds
- Busy
As of 2026, Honolulu in April averages a high of 28°C and low of 21°C with 30mm of rain over about 6 days. Tropical light. Dry season starting — minimal rain. Sea 25°C / 77°F comfortable swimming. UV climbing to 10 (extreme) — reef-safe sunscreen SPF 50+ every 2 hours.
April is very-high for Honolulu.
April is widely considered the best month to visit Honolulu — ideal weather (21-28°C / 70-82°F), fewer tourists than the Christmas-NYE-Korean Lunar New Year peak, dry season starting, and hotels at moderate shoulder-season pricing.
Merrie Monarch Festival (Easter week, on the Big Island in Hilo, not O'ahu) is the world's #1 hula festival — but it pulls Hawaii-resident tourists from O'ahu, leaving Honolulu slightly less crowded that week. Easter weekend itself surges if it falls in early April (Easter dates vary March-April).
Travel score
Honolulu April Weather Stats
Avg High
28°C
Avg Low
21°C
Rainy Days
6
30mm total
Sunshine
9h
Daily avg
Humidity
65%
moderate
UV Index
10
Very high
Wind
14 km/h
Gusts 30
Sea Temp
25°C
swimming
Crowds
Busy
At attractions
April Sunrise & Sunset
Air Quality
PM2.5
6 μg/m³
PM10
15 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
29°C
Nighttime
22°C
Humidity and wind affect how the actual temperature feels.
Wind
14 km/h
Max gust 30 km/h
Activities Recommended for April
April Travel Pros & Cons
Pros
- Ideal weather 21-28°C
- Fewer tourists than Christmas-NYE peak
- Dry season starts + minimal rain
Cons
- Easter surge if dates align
- Pre-Korean-Golden-Week pricing climbing late April
- UV jumps to 10 (extreme)
April Events & Festivals
- Easter weekend (varies)
- Merrie Monarch Festival (Easter week, world's #1 hula festival, Hilo Big Island)
- Whale season ends mid-April
Honolulu in April — Full Picture
April is widely considered the best month to visit Honolulu — ideal weather (21-28°C / 70-82°F), fewer tourists than the Christmas-NYE-Korean Lunar New Year peak, dry season starting, and hotels at moderate shoulder-season pricing.
Merrie Monarch Festival (Easter week, on the Big Island in Hilo, not O'ahu) is the world's #1 hula festival — but it pulls Hawaii-resident tourists from O'ahu, leaving Honolulu slightly less crowded that week. Easter weekend itself surges if it falls in early April (Easter dates vary March-April).
North Shore swells stop reliably mid-April — North Shore beaches become swim-friendly Lanikai-equivalents. Whale-watching season ends mid-April (last whales depart for Alaska by April 20). Hanauma Bay snorkeling and Diamond Head sunrise are at peak conditions.
Korean Golden Week (late April - early May overlap) sees flight prices from Seoul start climbing 30-40% — book April flights 8-10 weeks ahead from Korea.
The smart April move: target the first 3 weeks (pre-Korean Golden Week, post-Easter) for the year's best weather-to-price combination.
What to Wear & What to Pack
Tropical light. Dry season starting — minimal rain. Sea 25°C / 77°F comfortable swimming. UV climbing to 10 (extreme) — reef-safe sunscreen SPF 50+ every 2 hours.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
Current27.7°C
21°C
6/mo
Summer (Jun·Jul·Aug)
30°C
23.7°C
3.7/mo
Autumn (Sep·Oct·Nov)
29.7°C
23°C
7/mo
Winter (Dec·Jan·Feb)
27°C
20.3°C
10.3/mo
Honolulu Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 27° | 20° | 11d·100mm | 7h | 70% | 8 | Very busy | Peak | |
| February (Best) | 27° | 20° | 9d·80mm | 8h | 68% | 9 | Very busy | Peak |
| March (Best) | 27° | 20° | 7d·60mm | 8h | 67% | 9 | Busy | Shoulder |
| April (Best) | 28° | 21° | 6d·30mm | 9h | 65% | 10 | Busy | Shoulder |
| May (Best) | 28° | 22° | 5d·30mm | 10h | 65% | 11 | Very busy | Peak |
| June (Best) | 29° | 23° | 4d·15mm | 11h | 63% | 11 | Very busy | Peak |
| July (Best) | 30° | 24° | 3d·10mm | 11h | 65% | 12 | Very busy | Peak |
| August (Best) | 31° | 24° | 4d·15mm | 11h | 65% | 12 | Very busy | Peak |
| September (Best) | 30° | 24° | 5d·25mm | 10h | 65% | 11 | Busy | Shoulder |
| October (Best) | 30° | 23° | 7d·50mm | 9h | 67% | 9 | Moderate | Shoulder |
| November (Best) | 29° | 22° | 9d·80mm | 8h | 70% | 8 | Moderate | Shoulder |
| 27° | 21° | 11d·100mm | 7h | 70% | 7 | Very busy | Peak |
View Other Months
Honolulu April Hotel Picks
Frequently Asked Questions
Is April a good time to visit Honolulu?
Honolulu in April is very-high. Tourist crowds are busy and flight/hotel prices are shoulder.
What's the average temperature in Honolulu in April?
Honolulu April averages a high of 28°C and a low of 21°C.
Does it rain much in Honolulu in April?
Honolulu April averages 30mm of rainfall over about 6 rainy days.
What should I wear in Honolulu in April?
Tropical light. Dry season starting — minimal rain. Sea 25°C / 77°F comfortable swimming. UV climbing to 10 (extreme) — reef-safe sunscreen SPF 50+ every 2 hours.
What time are sunrise and sunset in Honolulu in April?
Honolulu April sunrise is 06:25 and sunset is 18:35, with 12h 10m of daylight.
What's the air quality like in Honolulu in April?
Honolulu April air quality (AQI) averages 25, rated Good. PM2.5 averages 6μg/m³.
What activities are recommended in Honolulu in April?
In April, Honolulu is great for Waikiki + Diamond Head sunrise, Pearl Harbor, Hanauma Bay snorkel (peak).
Is April peak season in Honolulu?
Honolulu April crowds are busy and prices are shoulder. Advance reservations are strongly recommended.
Best Months to Visit Honolulu
View Other Months
Planning a April trip to Honolulu?
You've checked the weather — next come the budget and the route.
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.