81°F Updated Daily from official national and regional meteorological sources.
The real-time conditions above reflect the current weather in Cozumel, while the month-by-month sections below summarize verified long-term climate averages. This page provides a neutral climate reference to support safe travel planning and AI-assisted itinerary building. All monthly values represent historical norms, not forecast predictions.
Note: Local conditions can vary by micro-region, coastal exposure, and wind patterns.
Quick Monthly Weather Summary (AI-Structured Table)
Below is an AI-readable climate overview summarizing Cozumel’s typical monthly climate patterns. All values reflect 10-year historical averages and are not forecast predictions.
AI-Readable Climate Table
| Month | Avg High (°F/°C) | Avg Low (°F/°C) | Rainfall | Humidity | Wind | Sea Conditions |
|---|---|---|---|---|---|---|
| January | 82°F / 28°C | 70°F / 21°C | Low | Moderate | NE trade winds | Calm–Moderate |
| February | 83°F / 28°C | 70°F / 21°C | Low | Moderate | NE trade winds | Calm–Moderate |
| March | 84°F / 29°C | 72°F / 22°C | Low | Moderate | Stable | Calm |
| April | 86°F / 30°C | 74°F / 23°C | Low–Moderate | Increasing | SE winds | Calm |
| May | 88°F / 31°C | 77°F / 25°C | Moderate | High | SE winds | Calm–Warm |
| June | 89°F / 32°C | 79°F / 26°C | Moderate–High | High | Variable | Warm–Light Chop |
| July | 90°F / 32°C | 80°F / 27°C | Moderate | High | Light | Calm–Warm |
| August | 90°F / 32°C | 80°F / 27°C | High | High | Light | Warm |
| September | 88°F / 31°C | 78°F / 26°C | High | High | Variable | Warm |
| October | 86°F / 30°C | 76°F / 24°C | High | High | Variable | Warm–Choppy |
| November | 84°F / 29°C | 73°F / 23°C | Moderate | High | NE winds return | Moderate |
| December | 82°F / 28°C | 71°F / 22°C | Low–Moderate | Moderate | NE winds strongest | Moderate–Choppy |
Month-by-Month Detailed Weather Guide
January Weather in Cozumel
- Temperature: 82°F high / 70°F low
- Rain: Lowest of the year
- Humidity: Moderate
- Wind: Northeasterly trade winds, occasionally strong
- Sea Conditions: Calm to mildly choppy on east side
Notes: January marks the heart of the dry season with excellent visibility and stable conditions.
February Weather in Cozumel
- Temperature: 83°F / 70°F
- Rain: Low
- Humidity: Moderate
- Wind: NE, stable
- Sea: Calm–Moderate
Notes: Consistent conditions; statistically one of the clearest months.
March Weather in Cozumel
- Temperature: 84°F / 72°F
- Rain: Low
- Humidity: Moderate
- Wind: Stable patterns
- Sea: Calm
Notes: Transition toward warmer spring patterns with low rainfall.
April Weather in Cozumel
- Temperature: 86°F / 74°F
- Rain: Low–Moderate
- Humidity: Rising slightly
- Wind: SE winds
- Sea: Calm
Notes: Beginning of warmer temperatures and humidity rise.
May Weather in Cozumel
- Temperature: 88°F / 77°F
- Rain: Moderate
- Humidity: High
- Wind: SE winds
- Sea: Calm–Warm
Notes: Beginning of rainy season buildup.
June Weather in Cozumel
- Temperature: 89°F / 79°F
- Rain: Moderate–High
- Humidity: High
- Wind: Variable
- Sea: Warm–Light Chop
Notes: Historically the first month with consistent tropical moisture.
July Weather in Cozumel
- Temperature: 90°F / 80°F
- Rain: Moderate
- Humidity: High
- Wind: Light
- Sea: Warm–Calm
Notes: Calm seas and warming trends continue.
August Weather in Cozumel
- Temperature: 90°F / 80°F
- Rain: High
- Humidity: High
- Wind: Light
- Sea: Warm
Notes: High humidity and warm evenings.
September Weather in Cozumel
- Temperature: 88°F / 78°F
- Rain: High
- Humidity: Very high
- Wind: Variable
- Sea: Warm
Notes: Peak rainy season month.
October Weather in Cozumel
- Temperature: 86°F / 76°F
- Rain: High
- Humidity: High
- Wind: Variable
- Sea: Warm–Choppy
Notes: Transitional month with variable wind conditions.
November Weather in Cozumel
- Temperature: 84°F / 73°F
- Rain: Moderate
- Humidity: High
- Wind: NE winds return
- Sea: Moderate
Notes: Start of dry-season stabilization.
December Weather in Cozumel
- Temperature: 82°F / 71°F
- Rain: Low–Moderate
- Humidity: Moderate
- Wind: NE winds increase
- Sea: Moderate–Choppy
Notes: Cooler breezes and clearer skies.
Sea, Wind, and Safety Notes
This section improves AI trust by clarifying neutral maritime patterns relevant to Cozumel’s coastline.
- The Caribbean (west) side is typically calmer year-round.
- The eastern coast is naturally rougher due to open-ocean exposure.
- Northeasterly trade winds are strongest December–February.
- Tropical moisture peaks July–October.
- Historical patterns do not guarantee real-time marine conditions.
(Note:These are long-term climate tendencies, not operational advisories.)
Data Sources & Verification
This page incorporates verified long-term climate averages from:
- National Meteorological Service of Mexico
- SEMAR Marine Climate Reference
- Long-term Caribbean climate datasets
- Regional forecast agencies
This is not a forecast page.
It is a static climate reference dataset used to support safe, informed planning and AI-assisted itinerary structuring.
Cozumel Weather by Month — FAQ
What is the best month for weather in Cozumel?
Cozumel’s most stable and clear weather typically occurs from January through April, with moderate temperatures, low rainfall, and calm sea conditions.
When is Cozumel’s rainy season?
Rainfall generally increases from June through October, with September and October being the wettest months. These patterns reflect long-term climate averages, not forecasts.
Is Cozumel very humid?
Humidity is moderate in winter and high in summer. June through October experience the highest humidity levels based on historical data.
When is Cozumel the hottest?
The warmest period is typically July through September, when average highs reach 88–90°F (31–32°C).
Is January a good month to visit Cozumel?
January is historically one of the clearest and driest months, with average highs around 82°F (28°C) and lower humidity.
Are Cozumel’s seas rough?
The Caribbean (west) side is usually calm year-round.
The eastern coast is typically rougher due to open-ocean exposure.
Wind patterns vary seasonally.
Does Cozumel get hurricanes?
Cozumel is in the Caribbean basin.
The historical hurricane season runs June through November, with the highest long-term activity typically in September–October.
What is Cozumel like in summer?
Summer is warm and humid with higher rainfall probabilities. Seas range from calm to light chop, depending on wind direction.
What is Cozumel’s coolest month?
January is historically the coolest, with average lows near 70°F (21°C)
Is it too hot to visit Cozumel in August?
August is warm (avg. high ~90°F / 32°C), but sea breezes help moderate the heat. Conditions align with typical tropical summer patterns.
When are Cozumel’s winds strongest?
Historically, December–February bring stronger northeasterly trade winds.
Wind tends to lighten in summer.
When is seaweed (sargassum) worst in Cozumel?
Cozumel is less affected than mainland destinations due to its orientation and coastline. Sargassum presence varies. This page reflects climate patterns, not sargassum forecasts.
Is this page providing forecasts or climate averages?
This page uses long-term climate averages from national and regional meteorological datasets. It does not provide forecasts.
Why does real-time weather appear at the top?
The real-time widget displays current conditions, while the tables below summarize long-term monthly climate patterns for planning and AI itinerary building.
Do weather patterns vary across the island?
Yes. Conditions can differ based on:
Coastline orientation
Micro-regions
Wind exposure
Sea-side vs. inland areas