Best Time to Visit Ross & Smith Twin Islands (Diglipur), North Andaman

Quick Answer

November to April is the best time to visit Ross & Smith Twin Islands, with January to March offering the calmest seas and clearest water. For the signature experience of walking the dazzling white sandbar that connects the two islands, plan your trip around low tide (ideally within two hours on either side).

Why Timing Matters Here

• The Sandbar: At high tide, the sandbar narrows or submerges; at low tide it’s wide, scenic, and safe to walk.
• Sea Conditions: Calm, clear water is common from Dec–Mar, ideal for swimming and snorkelling. Monsoon winds and swells (May–Sep) can make boats irregular and waters choppy.
• Permits & Boats: Entry is controlled; permits are issued in Diglipur and boats generally operate mornings to early afternoon, so tides and boat timings must align.

Season-by-Season Guide

Winter / Dry Season (November–February)

• Why it’s great: Pleasant temperatures (around 23–30°C), minimal rain, excellent visibility, and the sandbar is usually pristine.
• Best for: Swimming, snorkelling, photography, families, and first-time visitors.
• Watch for: Peak-season crowds and higher accommodation rates in late Dec–early Jan.

Early Summer / Shoulder (March–April)

• Why it’s great: Still-clear water and typically calm seas; fewer crowds than peak winter.
• Best for: Snorkelling, sun-seeking, budget-conscious travelers (outside holiday weeks).
• Watch for: Hotter days (up to 33°C), strong sun—carry shade and hydrate.

Southwest Monsoon (May–September)

• Pros: Lush landscapes, fewer tourists, potential deals.
• Cons: Frequent rain, rough seas, possible boat cancellations; sandbar may be submerged or unsafe at times. Visibility drops for snorkelling.
• Verdict: Not ideal unless you’re flexible and understand weather-related disruptions.

Post-Monsoon Shoulder (October)

• Why it can work: Rains retreat, islands revive, and crowds are light.
• Watch for: Occasional squalls or residual swell; conditions improve as the month progresses.

Month-by-Month Snapshot

• October: Improving weather; good if you want fewer people, but keep an eye on forecasts.
• November: Consistently pleasant; great balance of weather and crowd levels.
• December: Peak season; superb clarity, but book permits/boats and stays in advance.
• January: Prime month—calm seas, clear skies, excellent for the sandbar.
• February: Prime continues; warm, blue-water days with manageable crowds.
• March: Slightly hotter; still excellent water conditions and fewer visitors.
• April: Hot and bright; mornings are best. Good for snorkellers comfortable with sun.
• May–September: Unsettled seas, rain spells; plan only if flexible and tide-savvy.

Low Tide = Best Sandbar Experience

The sandbar is the star. Its width and safety vary with tides:

• Target low tide: Aim to arrive within two hours of low tide for wide, walkable sand.
• Neap vs Spring tides: Around neap tides (smaller tidal range), the bar often stays exposed longer. During spring tides (bigger tidal range, around new/full moon), high tides may cover it more.
• Check tide tables: Use local tide charts for Aerial Bay/Diglipur region when planning your boat time. Operators often advise the best window.
• Morning advantage: Mornings have calmer winds and better light; many boats prefer early departures and return by mid-afternoon.

How a Typical Visit Works

• Permit: Obtain from the local Forest/administrative office (Diglipur/Aerial Bay). Carry ID; plastic restrictions apply.
• Boat: Shared or private boats operate from Aerial Bay Jetty. Trips usually allow a couple of hours on the islands.
• Timings: Operations are generally morning to early afternoon; last returns are by mid-afternoon and can be earlier in rough weather.
• On the islands: Basic facilities only. Keep the beach plastic-free and carry back all waste.

Best Time by Interest

• Swimming & Snorkelling: December–April for calm, clear water. Use reef-safe sunscreen; avoid the open-sea side during strong currents.
• Photography: Low tide plus early morning or late afternoon for soft light. Midday is bright but harsh.
• Wildlife Add-ons Nearby: Turtle nesting at Kalipur/Ramnagar beaches typically peaks from winter into early spring; go with authorized guides and follow no-disturbance rules.
• Quiet Escapes: November and March–April weekdays balance good weather with fewer visitors.

Weather and Sea Conditions at a Glance

• Temperature: Generally 23–33°C year-round; coolest nights in Dec–Feb.
• Rainfall: Heaviest June–August; lightest Jan–March.
• Sea State: Calmest Dec–Mar; choppy with swells and reduced visibility May–Sep.

Crowds, Costs, and Availability

• Peak demand: Late December to mid-January, long weekends, and school holidays—book boats and stays early.
• Better value: November, February, March, and early April (outside holidays).
• Monsoon season: Possible discounts but higher risk of cancellations.

Travel Smart: Practical Tips

• Align with tides: Plan your permit/boat for the low-tide window; ask operators for the best slot.
• Bring essentials: Sun protection (hat, UV shirt), drinking water, light snacks, and cash. Shade is limited.
• Footwear: Reef-safe water shoes help on coral rubble.
• Safety: Currents can be strong on the ocean-facing side; stay within designated areas and obey lifeguard/boatman advice.
• Plastic-free: Follow island rules—avoid single-use plastic and carry back all waste.
• Buffer time: Weather can disrupt boats; keep an extra day in your itinerary, especially outside peak season.
• Health & connectivity: Carry seasickness meds if needed; mobile signal can be patchy.

FAQs

Is it worth visiting during the monsoon?

If you’re flexible and comfortable with possible cancellations, you may enjoy the solitude and greenery. For reliable sandbar walks, clear water, and safe swimming, the dry season is far better.

What is the best time of day?

Morning, aligned with low tide. Winds are lighter, water clearer, and boat schedules fit better.

How long should I spend on the islands?

Plan for about 2–3 hours on the islands, plus boat transfers. That comfortably covers sandbar walks, a swim, and photos.

Is the sandbar always visible?

No. It changes with tides and swell. Aim for low tide and calmer months (Nov–Apr) to see it at its best.

The Bottom Line

For the classic Ross & Smith experience—brilliant white sand, a walkable bar between emerald islands, and tranquil water—visit between November and April, ideally January to March, and time your boat around low tide. Build a little flexibility into your plan, respect the island’s eco-rules, and you’ll have one of the most memorable days in the Andamans.