Weather in Merida in September 2025
- September is usually the wettest month of the year in Merida;
Average weather
Average temperature in Merida in September
The expected average maximum temperature in September is +35°C with a maximum of +36°C and a minimum of +22°C.
The average maximum temperature goes down 21% by the end of the month, compared with the beginning of the month, from +36°C to +33°C.
Is Merida warm or cold in September?
Merida is typically hot in September.
Maximum temperatures go down compared to the previous month from +34°C to +33°C. The minimum temperature also goes up from +24°C to +24°C.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
Take a look at how September is compared to other months in Merida:
Climate in Merida in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +34°C | +33°C | +32°C | ||||
| Min. temperature | ||||||
| +21°C | +18°C | +14°C | ||||
| Max. temperature | ||||||
| +40°C | +39°C | +37°C | ||||
| Rainfall | ||||||
| 114 mm | 152 mm | 92 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 79% | 82% | 80% | ||||
| Air pressure | ||||||
| 1013 HPa | 1011 HPa | 1012 HPa | ||||
| Sunny days | ||||||
| 1 | 1 | 3 | ||||
| Cloudy days | ||||||
| 3 | 2 | 7 | ||||
| Rainy days | ||||||
| 25 | 26 | 20 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September typically has worse weather conditions compared to August. It’s getting colder in September. From +34°C in the day, the average maximum temperature lowers to +33°C. Prepare for more rain. Average rainfall goes from 114 mm to 152 mm. Humidity rises from 79% to 82%. The average wind speed doesn’t change much during September, staying around 2 m/s. The amount of sunny days stay about the same, averaging 1 sunny days during the month.
But maybe it is worth considering traveling in October as the weather gets better.
Wind
The average wind speed is 2 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Merida is gradually increasing during September, going from 1 m/s to 2 m/s over the course of the month.
Rain
How was the weather last September in Merida?
Climate Change over Years
The climate in Merida in September has not changed much over the last 43 years.
The average temperature was the lowest in 1988 (+32°C) and the highest in 2005 (+34°C). The driest year was 2015 with only 464 mm of rainfall, and the wettest year was 2020 with 1378 mm.
FAQ
Is September a good time to visit Merida?
Can you sunbathe in Merida in September?
Is Merida rainy in September?
Is it sunny in Merida in September?
Other cities in Mexico
Monthly weather in Merida
Source of the data
For this page, we’ve looked at the typical weather in Merida, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.