Flying Fish Cove (The Settlement) weather in September
September in Flying Fish Cove: hot, a little rain, with clean air — one of the best months to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#2 of 12 months in Flying Fish Cove · #317 of 1413 destinations to visit in September · comfort 88/100 (tier A)
- Days
- 27°C
- Nights
- 23°C
- Wet days
- 8
- Sun
- 10.9 h
- Humidity
- 79%
- Daylight
- 12 h
Traveller notes on Flying Fish Cove in September
Forum posters flag September-October as a genuinely unique feature of a Christmas Island visit: the famous red crab migration, when the sheer number of crabs moving toward the sea to spawn is prolific enough to force road closures across the island. Posters consistently name this drier stretch of the year, ahead of the wet season that sets in around December, as a favorable window weather-wise for exploring both Flying Fish Cove and the island's national park. Posters generally recommend planning around the migration itself as much as the weather, since road access can be genuinely affected by crab movement during a September visit regardless of how clear the skies are.
Other months in Flying Fish Cove
There isn't much March-specific forum detail for Flying Fish Cove, but the island's wet season runs roughly December through April, so March sits squarely in it - a nearby thread about the wet season generally summed up the local attitude well: it won't stop you from hiking or diving, and getting rained on somewhere this warm is more refreshing than a nuisance. The destination's own climate record backs that up with frequent, warm showers rather than anything approaching a washout month, and the diving and red-crab-season scenery stay a big draw regardless of the rain.
Add your own note from Flying Fish Cove's card on the map.
Flying Fish Cove climate normals — September
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Flying Fish Cove in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Busyschool holidays in 3 of the markets that fill it, one of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Flying Fish Cove's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherFlying Fish Cove's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Flying Fish Cove in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Dry season
1 May – 31 OctThe middle of the year is the least humid and the calmest, which is when the diving off the drop-off is at its best and the walking tracks are not mud. No crabs on the move, though.
Where is Flying Fish Cove?
Flying Fish Cove in September — FAQ
- Is September a good time to visit Flying Fish Cove?
- September in Flying Fish Cove: hot, a little rain, with clean air — one of the best months to visit. It ranks #2 of 12 months for Flying Fish Cove on SeasonMap's comfort score (88/100).
- What is the weather like in Flying Fish Cove in September?
- In September, Flying Fish Cove averages a daily high of 27°C and a low of 23.3°C, with about 41.1 mm of rain over roughly 7.7 rainy days.
- What is the air quality in Flying Fish Cove in September?
- Flying Fish Cove has a mean US Air Quality Index of about 46 in September.