Best Time to Visit the Marietas Islands: Month-by-Month Guide 2026
Quick Answer: Best Time to Visit the Marietas Islands
The best time to visit the Marietas Islands is November to March, when sea conditions are optimal and there is a higher chance of spotting humpback whales. High season (December to February) offers the best whale sightings but also the highest demand. For the best value, May, September and October are ideal.
Month-by-month: what to expect
| Month | Weather | Whales | Water | Crowds |
|---|---|---|---|---|
| January | 22-26°C · Sunny | ⭐⭐⭐⭐⭐ Peak | Crystal clear | High |
| February | 22-26°C · Sunny | ⭐⭐⭐⭐⭐ Peak | Crystal clear | High |
| March | 23-27°C · Sunny | ⭐⭐⭐⭐ Good | Crystal clear | Medium-high |
| April | 24-28°C · Warm | ⭐⭐ Occasional | Good | High (Easter) |
| May | 25-29°C · Warm | ⭐ Rare | Good | Low |
| June | 26-30°C · Humid | Off-season | Good | Medium |
| July | 27-31°C · Humid | Off-season | Fair (rain) | High (summer) |
| August | 27-31°C · Humid | Off-season | Fair | High |
| September | 27-30°C · Rainy | Off-season | Fair | Low |
| October | 26-29°C · Transition | ⭐ Early | Good | Low |
| November | 24-28°C · Sunny | ⭐⭐⭐ Good | Crystal clear | Medium |
| December | 22-26°C · Sunny | ⭐⭐⭐⭐⭐ Peak | Crystal clear | Very high |
Humpback whale season: December to March
More than 500 humpback whales migrate to Banderas Bay each year to breed and give birth. The official whale-watching season runs from December to March, peaking January-February. During the crossing to the Marietas Islands it is common to see whales, dolphins and sea turtles.
Best time for crystal-clear water and snorkeling
Underwater visibility peaks from November to May. During these months, water visibility reaches up to 25 meters, ideal for snorkeling the coral reefs around the islands.
Low season: when fewer tourists visit
The lowest-crowd months are May, September and October. Advantages:
- More flexible bookings (sometimes same-day)
- Fewer boats around Playa del Amor
- Better photo opportunities without crowds
- Lower accommodation prices in Punta de Mita
Weather considerations
Rainy season runs from June to October, with the highest intensity in September. However, tropical rains are usually short (afternoon/evening) and don't affect morning tours. If booking during these months, choose morning slots.
Closed days year-round
By official CONANP disposition, the Marietas Islands National Park remains closed to the public every Monday and Tuesday, without exception.
Secure your Hidden Beach pass
Avoid missing out on the 116 daily passes. Book now with Stripe and get instant confirmation.
Frequently Asked Questions
What is the best month to see whales?
January and February are the peak months for humpback whale sightings in Banderas Bay, though the season runs from December to March.
Is it worth visiting during the rainy season?
Yes, especially if you want to avoid crowds. Rain typically falls in the afternoon or evening, so morning tours are usually dry. Plus, the islands are lush and green.
How far in advance should I book for high season?
For December to March (peak whale season), we recommend booking at least 2 to 3 weeks in advance, as CONANP passes sell out quickly.
