Quick answer
November to April is the best time to visit the Andaman Islands. Seas are calm, ferries between Sri Vijaya Puram (Port Blair), Swaraj Dweep (Havelock) and Shaheed Dweep (Neil) run on schedule, and water clarity for snorkelling and diving peaks from February to April. Late December is peak season. Avoid June to August, when monsoon seas cause frequent cancellations.
Month-by-month at a glance
- Jan30°Best
- Feb31°Best
- Mar32°Best
- Apr33°Best
- May32°Fair
- Jun30°Avoid
- Jul30°Avoid
- Aug29°Avoid
- Sep29°Fair
- Oct30°Fair
- Nov30°Good
- Dec30°Best
Andaman Islands weather, crowds and what to expect
| Month | High / Low | Rain | Crowds | What to expect |
|---|---|---|---|---|
| JanuaryBest | 30° / 23° | 40 mm | high | Calm seas; busy in the first week. |
| FebruaryBest | 31° / 23° | 20 mm | medium | Dry, clear water, settled ferries. |
| MarchBest | 32° / 24° | 10 mm | medium | Driest month; excellent visibility. |
| AprilBest | 33° / 25° | 60 mm | medium | Calmest seas; best for diving; hot. |
| MayFair | 32° / 26° | 360 mm | low | Monsoon arrives mid-to-late May. |
| JuneAvoid | 30° / 25° | 470 mm | low | Rough seas; frequent ferry cancellations. |
| JulyAvoid | 30° / 25° | 400 mm | low | Heavy rain; water sports often off. |
| AugustAvoid | 29° / 25° | 400 mm | low | Persistent rain and swell. |
| SeptemberFair | 29° / 25° | 440 mm | low | Very wet, but deals and quiet beaches. |
| OctoberFair | 30° / 24° | 290 mm | medium | Changeable; Puja-holiday groups. |
| NovemberGood | 30° / 24° | 230 mm | medium | Season opens; some showers. |
| DecemberBest | 30° / 23° | 150 mm | high | Peak from 20 December; book early. |
Long-term monthly averages. Individual years vary — check a forecast in the week before you travel.
Festivals and events in Andaman Islands
20 December to 5 January
Christmas–New Year
Peak rates; ferry seats and Havelock resorts sell out 2–3 months ahead.
September–October
Durga Puja holidays
Large groups from West Bengal; Port Blair hotels and ferries fill up.
Usually December–January, when held
Island Tourism Festival
Cultural shows and food stalls in Sri Vijaya Puram; dates are announced late.
When is the best time to visit the Andamans?
November to April. The islands are tropical and humid all year, with highs of 29–33°C, so the deciding factor is the sea. From November the south-west monsoon has gone, swells drop, and the private catamarans between Sri Vijaya Puram (Port Blair), Swaraj Dweep (Havelock) and Shaheed Dweep (Neil) run reliably. Divers rate February to April highest, when underwater visibility is often 15–25 m.
What is each season like?
| Months | Sea | Crowds | Verdict |
|---|---|---|---|
| Nov–Dec | Settling, mostly calm | High from 20 Dec | Very good |
| Jan–Mar | Calm, clear | Medium–high | Best |
| Apr–mid-May | Calmest, hot | Medium | Best for diving |
| Late May–Sep | Rough, rainy | Low | Avoid for a first trip |
| Oct | Changeable | Medium | Fair |
October brings large groups from West Bengal during the Durga Puja holidays. Late December to early January is the peak: ferry seats and Havelock beach resorts sell out, so book 2–3 months ahead.
Is it safe to visit the Andamans in the monsoon?
It can be, but it's unpredictable. Ferries are cancelled when sea warnings are issued, which can strand you on an island for a day or two and cause missed flights. Water sports and dives are often called off, and Radhanagar beach frequently flies red flags. Rates do fall by 30–50%. If you go, keep a buffer day before your flight home and buy travel insurance.
Light matters more than you'd think. The islands run on Indian Standard Time despite lying far east, so in winter the sun rises around 5:45 am and sets by about 5–5:15 pm. Plan early starts and catch sunsets from the beach, not the road.
Do Indian travellers need a permit?
No. Indian citizens need only a valid photo ID for Port Blair, Havelock, Neil and the other tourist islands. Tribal reserves are off-limits to everyone.
For costs and planning, see our Andaman trip cost guide, where to stay in the Andamans and things to do in the Andamans. Comparing islands? Read the best time to visit Lakshadweep.
Frequently asked questions
Which month is best for scuba diving in the Andamans?
Do Andaman ferries run during the monsoon?
Is December a good time to visit the Andamans?
Is the Andamans too hot in April?
How we checked this page
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Written and fact-checked by the Elitech Travels editorial desk in New Delhi, drawing on our consultants' day-to-day booking work and the official sources below. Rules, fares and fees change — always confirm anything critical with the issuing authority before you travel. Our editorial policy.






