Booking choice: The Kailua Bay kayak tour with lunch, from $115 per person. Check dates Compare the options below
Kailua is on Oahu's windward side, which means the trade winds blow straight onshore. They usually build through the day, so the time you launch matters more than the month you travel.
Then there is the calendar: no island landings on Sundays, busy holiday weekends, and the odd closure for wildlife.
The quick answer
Go early in the morning, Monday to Saturday. The trade winds usually build through the day, so the first start is the calmest. Summer generally brings calmer seas; winter brings bigger north swells. The water is about mid-70s F in winter and 80F in late summer. There are no island landings on Sundays.
What is the best time of day to kayak Kailua?
Early morning: the trade winds usually build through the day, and the first start of the day has the calmest water.
Kailua Beach Adventures' Mokulua tour starts at 9 AM, and the Waikiki pickups for the flagship run from 7:30 to 8:30 AM. One guest put it simply: it was good to get an early start, as the water was very calm and there was little wind. If you are self-guided, launch as soon as you can after the shop opens at 8 AM.
Want the calm water? Take the earliest slot on your date.
Check dates for the Kailua Bay kayak tour with lunchWhy is it windier in the afternoon?
Kailua faces the trade winds, which blow onshore and tend to strengthen as the day warms.
Paddlers and travel guides consistently describe calmer mornings and gusty afternoons on Oahu's east side. Guests report paddling into the wind on the way out, which is why a late, windy start can turn a Mokes trip into a slog. A University of Hawaii study found that northeast trade wind days at Honolulu fell from about 291 to about 210 a year over 37 years, but they are still the norm.
Which months are best?
Summer is generally calmer on the windward side; winter brings bigger north swells, but trade winds blow year-round.
| Summer | Winter | |
|---|---|---|
| Swell | Smaller, mostly south swells | Bigger north swells |
| Water | About 80F by late summer | Mid-70s F |
| Wind | Trade winds, calmest early | Trade winds, calmest early |
| Best for | The Mokes and first-timers | Flat Island; the Mokes on calm days |
Can you kayak in Kailua on a Sunday?
Not to the islands: the state issues no landing permits for Flat Island or the Mokulua Islands on Sundays, and the island tours run Monday to Saturday.
The state gives the nesting seabirds a rest on Sundays, and city rules have long restricted commercial activity at Kailua Beach Park, with Sundays the strictest day. The operator's Sunday page says no carts or walking kayaks to the beach that day. Plan your paddle for another day and keep Sunday for Lanikai Beach or the Pillbox hike.
Weekday planned? The Kailua Bay tour runs Monday to Saturday.
Check dates for the Kailua Bay kayak tour with lunchHow warm is the water?
Warm all year: roughly the mid-70s F in winter, rising to about 80F in late summer.
No wetsuit is needed. A long-sleeve rash guard keeps the wind chill and the sun off on a breezy winter morning; see what to wear kayaking Kailua.
Are weekends and holidays busier?
Yes: guides note that Kailua Beach Park's lot fills early on weekends, and Lanikai's streets have no-parking rules on holiday weekends.
On holiday weekends the city bans parking from 10 AM to 3 PM along Lanikai's main loop roads and cross streets. Tour customers park free at the shop on Kailua Road, and the Waikiki pickup option avoids the question entirely. Traffic over the Pali Highway is heaviest from about 6 to 8:30 AM, so leave Waikiki early.
How far ahead should you book?
A few days ahead is usually enough, but book earlier for holidays and summer: guided groups are capped at 8.
Because every tour on this site cancels free up to 24 hours before on Viator, booking early costs nothing if the forecast turns. Pick the earliest start offered. For the Mokes, check the Mokulua guide for closures before you go.
Planning the Mokes? Book a calm-season morning and a guide takes care of the route.
Explore the Mokulua Twin Islands guided tourWhat if the weather turns?
Tours run in most weather, but strong wind can limit where you are allowed to paddle, and the state can close the islands at short notice.
The Flat Island listing says it operates in all weather conditions, so dress for rain as well as sun. Wildlife closures happen too: landings on Moku Nui were suspended in 2024 when a monk seal pup was born. If the forecast looks bad more than 24 hours ahead, cancel or move your Viator booking for free.
Forecast looking calm? Check dates, with free cancellation up to 24 hours before.
Check dates for the Kailua Bay kayak tour with lunchFrequently asked questions
What time should I kayak in Kailua?
As early as you can. The trade winds usually build through the day, so morning starts are calmest.
Is winter a bad time to kayak Kailua?
Not at all, but expect bigger north swells and choose Flat Island on rough days. The water stays in the mid-70s F.
Why can't you kayak to the islands on Sunday?
The state does not issue landing permits for the islands on Sundays, to give the nesting seabirds a rest.
Ready to book
Choose your paddle
Free cancellation up to 24 hours before on every option. Prices are from-prices in USD and move with the season.
Kailua Bay Kayak Tour with Lunch
- Kayak, paddle, life jacket, safety briefing and island landing permits
- Snorkel gear, dry bag, locker and showers at the shop
- Guide, lunch and Waikiki pickup only when you select that option
Flat Island Guided Kayak & Snorkel
- Guided paddle to Popoia (Flat Island) and a walk on the island
- Lunch and light refreshments
- Snorkel gear, and bikes to use after the tour
Mokulua Twin Islands Guided Kayak Tour
- Guided paddle to the Mokulua Islands and an island eco-walk
- Island landing fees and snorkel gear
- Lunch on the tour
