When to go · Cozumel

Cozumel in September

Avoid month. Listed as a month to avoid: Sep–Oct (rain and storm season), late Mar–early Apr (spring break crowds).

Key facts

Verdict: Avoid
Temperature: 31°C (88°F)88°F (31°C) / 24°C (75°F)75°F (24°C); average high / low
Rain days: 15
Crowds: Low; Mexico overall
Prices: Low; Mexico overall

Plan around it

Verdict

AvoidBest and avoid months for Cozumel

Listed as a month to avoid: Sep–Oct (rain and storm season), late Mar–early Apr (spring break crowds).

September is rated avoid. These months rate higher:

Long-term averages

CozumelHighs around 31 °C (88 °F), lows around 24 °C (75 °F), rain on about 15 daysHighs around 88 °F (31 °C), lows around 75 °F (24 °C), rain on about 15 days

Mexico overall: Peak hurricane month on both coasts; Independence Day (16 Sep) parties.

Weather, crowds and prices for any two months in Cozumel, side by side.

First month

Second month

September: Listed as a month to avoid: Sep–Oct (rain and storm season), late Mar–early Apr (spring break crowds).

January: Inside Cozumel's best window: Dec–Apr (dry, clear water); diving runs year-round.

Cozumel: figures are long-term averages from this guide, not a forecast.