Hotel Riu Emerald Bay beach forecast: weather, water & waves
Mazatlán, MX · Mazatlán, Mexico · 23.301, -106.486
Updated : very low seaweed, beach grade A, sea 85°F.
Also listed as Riu Emerald Bay - All Inclusive.
Veabird's call
Friday is the pick: grade A with very low seaweed and 85°F water.
December and May grade A here, and the Malecón is a good walk when crowds are Busy.
Grades from Veabird's beach forecast; wording by AI (Muse Spark), checked against the forecast. Updated Nov 13, 01:00 UTC.
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Questions about Hotel Riu Emerald Bay
Does Hotel Riu Emerald Bay get sargassum (seaweed)?
No. Atlantic sargassum does not reach the Pacific.
How warm is the water at Hotel Riu Emerald Bay?
About 81°F in November. The sea is warmest in August and September (about 89°F) and coolest in March (about 72°F).
When is the best time to visit Hotel Riu Emerald Bay?
For warm water and dry weather, aim for May and November. May is usually the quietest of the two, with almost no rainy days and a sea near 80°F.
When is hurricane season at Hotel Riu Emerald Bay, and how often do storms hit?
The eastern Pacific hurricane season runs from mid-May through November and peaks from August to October. A tropical storm passed within 86 miles of Hotel Riu Emerald Bay in 18 of the 55 seasons from 1971 to 2025, and a hurricane within 58 miles in 7. The riskiest stretch is around September 3, when the chance of a storm passing in any one week is about 3%; across all of September it is about 11%. Flexible bookings and travel insurance help in the peak weeks.
What guests say about Riu Emerald Bay - All Inclusive
Guests like Very friendly staff · Excellent location and beach access · Large buffet variety · Nice pools and kids pool
Watch for Occasional cleanliness lapses (dirty sheets, bugs in pool) · Room issues (uncomfortable beds, broken phone, shower/AC problems) · Insufficient/slow elevators · Rude front desk / slow support for requests
- Cleanliness
7.8 - Service
9.4 - Location
9.6 - Room Quality
7.0 - Amenities
9.2 - Value for Money
8.1 - Food and Beverage
9.1 - Overall Experience
8.6
Read all 573 reviews · Compare on Expedia
Scores and reviews come from guests who stayed, through LiteAPI (Nuitée). The likes, watch-fors and category scores are an AI summary of those reviews. Partner links: Veabird may earn a commission.
Sargassum season at Hotel Riu Emerald Bay
Hotel Riu Emerald Bay sits outside the reach of the Atlantic sargassum belt; seaweed landings are rare in any month.
Mazatlán month by month
Typical weather, water temperature, seaweed and crowds for every month: the best time to visit Mazatlán.
Weather & water by month at Hotel Riu Emerald Bay
Average highs run from about 78°F in January and February to 90°F in July. The sea is warmest in August and September (about 89°F) and coolest in March (about 72°F). March, April and May are usually the driest, with almost no rainy days; August is the wettest, with about 23 rainy days.
| Month | Avg high | Sea | Rainy days |
|---|---|---|---|
| Jan | 78°F | 74°F | 1 |
| Feb | 78°F | 73°F | 1 |
| Mar | 80°F | 72°F | 0 |
| Apr | 83°F | 75°F | 0 |
| May | 87°F | 80°F | 0 |
| Jun | 89°F | 85°F | 8 |
| Jul | 90°F | 88°F | 16 |
| Aug | 88°F | 89°F | 23 |
| Sep | 88°F | 89°F | 18 |
| Oct | 87°F | 87°F | 8 |
| Nov | 85°F | 81°F | 1 |
| Dec | 81°F | 76°F | 1 |
Monthly averages from 6 years of ERA5 reanalysis (Open-Meteo) for this area's 0.5° grid cell; rainy days have at least 1 mm (0.04 in). Any given year can differ.
Cleanup & barriers
- Offshore barriers
- Not needed: Atlantic sargassum does not reach the Pacific.
- Public cleanup
- Municipal beach crews handle driftwood, litter and storm debris.
- Resort crews
- Resort crews groom beaches daily.
- Typical clearing time
- n/a
Safety notes
US State Dept: Sinaloa, Level 4 (Do Not Travel; verify: US government staff may visit Mazatlán's tourist zone)
- Pacific surf is stronger than the Caribbean: watch the beach flags and rip currents.
- Eastern Pacific hurricane season peaks Aug–Oct.
- Stay in the Zona Dorada, Golden Zone and historic center; travel by air or official shuttle.
Check official advisories and local flags before swimming. Decomposing sargassum releases hydrogen sulfide; avoid heavy piles.
Things to do near Mazatlán, MX
- Old Mazatlán & Machado Plaza
- Malecón (one of the world's longest)
- Isla de la Piedra
- Carnaval (Feb)
- El Faro lighthouse hike
Fly in for the best beach days
Suggested dates are a week in December. Change them to match the live forecast above.
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Nearest airports
- Mazatlán Intl (MZT), ~27 km
Nearby resorts
- Pueblo Bonito Emerald Bay Resort & Spa Mazatlán, MX · 1 km
- Ocean Breeze Hotel Mazatlán Mazatlán, MX · 2 km
- Park Inn by Radisson Mazatlan Mazatlán, MX · 3 km
- Park Royal Beach Mazatlán Mazatlán, MX · 3 km
- La Marina Tenis y Yate Club Mazatlán, MX · 4 km
- Faro Mazatlan Beach Resort Mazatlán, MX · 4 km
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