The one-line answer: October to May, with December–January as glorious, busy peak. But “best” depends on what you’re coming for — here’s the calendar we actually use when friends ask.
| Months | Sea & weather | Verdict |
|---|---|---|
| Oct–Nov | Seas settle, 15–25 m dive visibility returns, crowds still thin | Our favourite window |
| Dec–Jan | Perfect weather; ferries and hotels sell out 3–4 weeks ahead | Peak — book early |
| Feb–May | Warm, calm, progressively quieter; May gets humid | Great value shoulder |
| Jun–Sep | Monsoon: rain spells, occasional ferry cancellations, 30–40% cheaper hotels | For flexible budget travellers |
Chasing something specific? Bioluminescent kayaking is best November–February on new-moon nights (here’s how that works). Turtle nesting at Diglipur runs December–February (the north Andaman guide). Divers get the cleanest water October–April.
Monsoon honesty: the islands are still beautiful between squalls and the discounts are real, but build buffer days around every ferry and flight. If your dates are fixed in peak season instead, lock ferries first — we plan custom trips around exactly this calendar, and every package already has the seats held.
Quick answers
Which is the cheapest month to visit Andaman?
June to September (monsoon) — hotels drop 30–40% and flights ease. Trade-off: rain spells and occasional ferry disruption, so keep plans flexible.
Is Andaman good in December?
It’s the best weather of the year — and the busiest. Book ferries and hotels 3–4 weeks ahead and expect Radhanagar to be lively by mid-morning.
Does it rain every day in Andaman monsoon?
No — monsoon rain comes in spells, often with bright windows between. But seas run rougher, which is what disrupts ferries and water sports, not the rain itself.
Last verified: July 2026 by the Azure Trails team, on the islands.
