Tamarindo sits on the Pacific coast of Guanacaste, the driest and sunniest corner of Costa Rica. The good news is that it’s a great place to visit almost any week of the year. The better news is that depending on what you want to do — chase roosterfish, glide through the mangroves, learn to surf, or just sit on the sand with a cold drink — there are months that are clearly better than others.
This is the same advice we give friends and family before they fly down. No tourist-board spin, just the way the year actually feels on the water in Tamarindo.
The two seasons in plain English
Costa Rica has two seasons, not four. In Tamarindo they go by several names but it comes down to this: the dry season runs roughly from mid-December through April, and the green season runs from May through mid-November. In between you get a few transition weeks that can go either way.
In the dry season you can plan a trip and reasonably expect sunshine every day. In the green season, most days are still sunny in the morning, with a warm afternoon shower that clears within an hour. The landscape turns electric green and the crowds thin out. Both seasons are good for boat tours — what changes is the visibility, the wildlife, and the price of your hotel.
December to April — high season, peak sun
These are the months on every postcard. Bright skies, a steady offshore breeze in the morning, calm seas inside the bay, and very little chance of rain. It is also when North American and European visitors arrive in the largest numbers, so hotels, restaurants, and tours all book up earlier and cost more.
The two busiest weeks of the entire year are the week between Christmas and New Year and Easter week (Semana Santa). If you want to come during either, book your boat tours and accommodations at least two months in advance. Outside of those weeks, January, February, March, and early April all feel comfortably busy without being overwhelming.
May to November — green season, fewer people, more life
The green season gets unfairly bad press. Yes, it rains — usually for an hour or two in the afternoon — but mornings are typically clear and the early evening light is some of the best of the year. The estuary fills out, birds become much more active, and you often have the boat to yourself.
September and October are the wettest months. Many small businesses close for a few weeks. If you do come during these months, stick to morning trips and bring a light rain layer. The reward is wildly green mangroves, almost no other tourists, and the lowest hotel rates of the year.
Best months for the mangrove safari
Wildlife is good year-round in the Tamarindo estuary, but it changes character with the season. In the dry months the water level drops and crocodiles become much easier to spot on the banks. Iguanas sun themselves in the bare branches and you can see almost the entire mangrove canopy.
In the green season the estuary is louder, lusher, and full of nesting birds. Roseate spoonbills, herons, and egrets become more active. Howler monkeys move lower in the trees. If you care most about birds, June through September is excellent.
Best months for sport fishing
The Pacific coast around Tamarindo has good fishing year-round, but each species has a stronger window. Inshore fish like roosterfish, jack crevalle, and snapper are around the entire year. Offshore species follow the bait and the weather.
- Sailfish — peak roughly May through August, with strong action again in November and December.
- Blue marlin — best chances late August through October, when warmer water pushes them closer.
- Mahi-mahi (dorado) — most consistent from May through October.
- Yellowfin tuna — scattered all year, with bigger schools June through September.
- Roosterfish — caught year-round inshore, with great action November through March when the water is calmer.
Best months for surfing, sunsets, and fewer crowds
Surfers tend to like the green season because the swell is bigger and the lineups are emptier. Beginners often prefer the dry season because the waves at Tamarindo Beach are smaller and more predictable.
For sunsets, every month works. The sun drops into the Pacific the entire year, and from a boat in the bay it is unforgettable in any season. The skies after a green-season rain shower can be spectacular.
For fewer crowds, aim for May, June, September, October, or the first half of November. You will get better prices, easier reservations, and a much more relaxed feel on the beach.
When NOT to plan a Tamarindo trip
Honestly, there is no bad month — just months that don’t match what you came for. Skip the last two weeks of December if you hate crowds. Skip late September and early October if rain ruins your mood. Skip Semana Santa if you want quiet. Otherwise, come whenever you can get the time off; the captain will find a tour that works for the conditions.
The shortest answer to "when should I visit Tamarindo" is: whenever you can. The longer answer is what you just read — pick the month that matches the trip you actually want, and let the rest fall into place.
Planning your trip?
Send a quick WhatsApp message with the dates you’re looking at and what you’d love to see on the water. The captain will tell you honestly what’s biting, what the conditions look like, and what tour fits best.
