Visit Merida in Yucatan
I would recommend visiting Merida from November through March, as this is the cooler time of year with less rain. Merida is the colorful and picturesque capital of Mexico’s Yucatan State.
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.
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.
Pick a month to see the average temperature, rainfall and sunshine in Mérida - and find the best time to visit.
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).
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
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.
The extremes listed below come from historical weather data collected in Mérida from 2003 through 2026.
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 →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
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.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Mérida climate overview or explore weather in Mexico.
Where to go in September - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Visit Merida in Yucatan
I would recommend visiting Merida from November through March, as this is the cooler time of year with less rain. Merida is the colorful and picturesque capital of Mexico’s Yucatan State.
Warm Sea Without Extreme Heat: 8 Beach Destinations With Comfortable Weather
Love warm seawater but not extreme heat? Compare eight beach destinations where the sea stays warm while daytime temperatures remain comfortable.
Best Spring Break Destinations for Great Weather and Fewer Crowds
Skip crowded spring break resorts. Compare March weather and travel style in Puerto Escondido, San Juan del Sur, Roatán, Caye Caulker and Curaçao.
Warm Days, Cool Nights: 8 Destinations With the Perfect Day-Night Temperature
Prefer warm sunny days but cool evenings? Compare eight destinations with daytime temperatures of around 25–30°C, cooler nights, low rainfall and plenty of sunshine.