Guadalajara Weather in September
With daytime temperatures of 28°C (82°F) and nighttime lows of 17°C (63°F), September in Guadalajara brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 168 mm (6.6 in) falls on average.
Rainfall in Guadalajara in September
Historically, September sees about 15 days of rain, with a monthly average of 168 mm (6.6 in). This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Guadalajara in September
In September, Guadalajara sees high temperatures, with highs of 28°C (82°F). Nights drop to around 17°C (63°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights cool down to 17°C (63°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Guadalajara in September
The area enjoys a moderate level of sunlight, with around 188 hours. It's a good balance between sunny and cloudy days.For Guadalajara itself, January, February, October, November and December generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 Guadalajara's climate page.
Guadalajara Temperature in September
Min Temperature
17°C (63°F)
Max Temperature
28°C (82°F)
Chance of Rain
51%
Precipitation
168 mm (6.6 in)
Rainy days
15 days
Humidity
71%
Sunshine
188 hours
Percentage Sunshine
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Guadalajara typically stay consistent throughout September, with daily highs averaging around 28°C (82°F). Nights are pleasant, with lows around 16°C (61°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 Guadalajara in September
Browse day-by-day weather records for Guadalajara spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Guadalajara historical weather extremes in September
Our historical data for Guadalajara spans 2003 to 2025, revealing these weather extremes.
- On September 24, 2023, temperatures climbed to 31°C (88°F), marking the warmest September day on record.
- Guadalajara experienced its chilliest September day on September 9, 2003, reaching only 18°C (64°F).
- The lowest overnight temperature recorded in September was 7°C (45°F) (September 8, 2011).
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 Guadalajara in September
Warm but pleasant conditions in Guadalajara in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Guadalajara 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 Guadalajara's climate page.
Temperature Rainfall Sunshine Humidity
See the full Guadalajara climate overview or explore weather in Mexico.
