Mérida Weather in September
September in Mérida brings very high temperatures, with highs of 35°C (95°F) and nights dropping to 24°C (75°F). It's the rainiest month of the year, so come prepared with waterproof gear.
Rainfall in Mérida in September
This month sees the most rain, so carrying an umbrella will ensure you stay dry. Expect around 15 days of rain based on historical data, with 146 mm (5.7 in) average. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Mérida in September
September in Mérida brings very high temperatures, with highs of 35°C (95°F) and nights around 24°C (75°F). For most visitors, the main thing to prepare for is the heat during the day. At 24°C (75°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.
Sunshine in Mérida in September
With approximately 210 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February and December typically offer the best weather for Mérida.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our Mérida's climate page.
Mérida Temperature in September
Min Temperature
24°C (75°F)
Max Temperature
35°C (95°F)
Chance of Rain
49%
Precipitation
146 mm (5.7 in)
Rainy days
15 days
Humidity
75%
Sunshine
210 hours
Percentage Sunshine
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Mérida typically stay consistent throughout September, with daily highs averaging around 35°C (95°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Mérida in September
Browse day-by-day weather records for Mérida spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mérida historical weather extremes in September
The extremes listed below come from historical weather data collected in Mérida from 2003 through 2025.
- Mérida recorded its highest September temperature of 39°C (102°F) on September 10, 2025.
- The lowest daytime temperature in September was 26°C (79°F), recorded on September 18, 2013.
- The coldest night in September in Mérida was on September 30, 2013, with a minimum of 20°C (68°F).
Best Places in Mexico in September
Find out more about the weather in Mexico and which places have the best travel conditions in this month. See all of Mexico in September →
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What to Wear in Mérida in September
Hot weather in September means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Mérida in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our Mérida's climate page.
Temperature Rainfall Sunshine Humidity
See the full Mérida climate overview or explore weather in Mexico.
