Almost every trip we plan starts with the same question: "So, when should we actually go?" There's no single wrong answer, the Andaman Islands are open and welcoming most of the year, but the gap between a smooth, sun-soaked holiday and one spent chasing cancelled ferries usually comes down to picking the right month. Here's the season-by-season picture, based on what we actually see on the ground each year rather than what a brochure promises.
November to February: Peak Season and the Safest Bet
This four-month stretch is the gold standard for an Andaman trip, and there's a reason travel agents and dive schools alike point everyone here first. The sea settles into calm, glassy conditions, skies stay mostly clear, and underwater visibility for diving and snorkelling is at its yearly best. Evenings even carry a light, welcome coolness that the islands don't offer for much of the year.
The catch is that everyone else knows this too. December and January in particular get booked out fast, both for flights into Port Blair and for ferries onward to Havelock and Neil Island, so this is the one window where locking in your dates two to three months ahead genuinely makes a difference to your budget and your itinerary.
If your trip revolves around diving or snorkelling, let the sea decide your dates before anything else does. The Andaman Sea is calmest from November through May, which is exactly why every dive centre on Havelock and Neil Island runs at full capacity in this window. Book your boat and instructor slots as early as your flights, not after, since good operators fill up weeks ahead in the December to February peak.
March to May: Warmer Days, Thinner Crowds
Underwater conditions are still good through this stretch, and the New Year rush has well and truly passed by March. What changes is the heat, daytime temperatures climb noticeably, and by May it can feel properly humid. In exchange, you'll find shorter jetty queues, more room to negotiate on resort rates, and a generally quieter island vibe. It suits travellers who don't mind trading a bit of comfort for lower costs and fewer crowds.
June to September: The Monsoon Months
This is the season we're honest about with first-time visitors: it's genuinely the toughest window to plan around. Rough seas bring frequent ferry cancellations between islands, water activities like scuba and snorkelling are often paused for safety, and rain can disrupt sightseeing plans with little warning. It's not that the islands shut down, hotels and Port Blair attractions stay open, but if this is your one big island trip of the year, we'd steer you toward a different month.
October: The Quiet In-Between
Seas begin settling and the peak-season crowds haven't arrived yet, though the odd shower is still possible as the monsoon tapers off. For travellers who'd rather skip the December rush and don't mind a touch of unpredictability, October is a fair middle ground, often with better rates than you'll see just two months later.
Our Quick Take
If this is a first visit and flexibility is limited, aim for November to February. If budget matters more than a slightly warmer afternoon, March and April are worth a serious look. And if your travel dates are fixed to the monsoon months, we'd still help you plan it, just with realistic expectations about what may need to shift once you're there.
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14 July 2025
