Sea conditions

Bali Strait & north Bali

Narrow and sheltered on both sides: the calmest water measured here, with a mean daily peak wave that never reaches half a metre.

1,462 days measured

Calmest monthsApril, May, June
Roughest monthsAugust, July, September

Month by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Bali Strait & north Bali — 1,462 days measured
Month Sea Wave Wind Easy days Rough days
January Easy 0.29 m 15 km/h 83% 0%
February Easy 0.27 m 15 km/h 83% 0%
March Easy 0.23 m 14 km/h 89% 0%
April Easy 0.20 m 13 km/h 98% 0%
May Easy 0.32 m 15 km/h 94% 0%
June Easy 0.40 m 16 km/h 90% 0%
July Easy 0.44 m 19 km/h 63% 0%
August Easy 0.44 m 18 km/h 56% 0%
The one soft spot in the year, and it is wind rather than swell — the sea stays low while the breeze picks up.
September Easy 0.40 m 18 km/h 67% 0%
October Easy 0.32 m 17 km/h 84% 0%
November Easy 0.19 m 15 km/h 88% 0%
December Easy 0.23 m 16 km/h 85% 0%

How this was measured

Every number on this page comes from four years of Open-Meteo marine and ERA5 reanalysis at a fixed point in this sea area, aggregated by calendar month. A month is called easy, mixed or hard by how many of its days are genuinely comfortable to be out on — not by a single day’s safety verdict, which classifies most days in most months the same way and tells you nothing about the year.

Sail it in the right month

Our captains work this water all year and know which weeks it rewards.

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Other sea areas

Lombok Strait Calmest months: November, April, December Badung Strait & Nusa Penida Calmest months: November, March, April North Lombok & the Gilis Calmest months: April, June, November South Bali & Indian Ocean Calmest months: November, February, March North Bali (Bali Sea) Calmest months: November, October, April Komodo & Flores Sea Calmest months: November, December, March