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San Sebastián del Oeste Weather in September
September in San Sebastián del Oeste brings high temperatures around 28°C (82°F) during the day, dropping to 19°C (66°F) at night, and as part of the rainy season, heavy rainfall is common.
Rainfall in San Sebastián del Oeste in September
As part of the rainy season, San Sebastián del Oeste sees around 17 days of rain in September, with an average of 344 mm (14 in). The rain this month falls heavily when it arrives. Late afternoons in particular can see strong showers, so waterproofs are worth keeping handy.
Temperature in San Sebastián del Oeste in September
September in San Sebastián del Oeste sees highs of 28°C (82°F) and lows of 19°C (66°F) overnight. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 19°C (66°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, November and December typically offer the best weather for San Sebastián del Oeste.
San Sebastián del Oeste Temperature in September
Min Temperature
19°C (66°F)
Max Temperature
28°C (82°F)
Chance of Rain
57%
Precipitation
344 mm (14 in)
Rainy days
17 days
Humidity
70% *
* Data from: Puerto Vallarta, Mexico (43 KM, 26 Miles).
San Sebastián del Oeste Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Sebastián del Oeste - and find the best time to visit.
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 →
perfect weather
pleasant
tolerable
unpleasant
poor
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).
What to Wear in San Sebastián del Oeste in September
Warm but pleasant conditions in San Sebastián del Oeste 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.
What To Do in San Sebastián del Oeste in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
San Sebastián del Oeste 3-Day Forecast
More climate data for San Sebastián del Oeste
See the full San Sebastián del Oeste climate overview or explore weather in Mexico.
Popular in September
Where to go in September - average daytime high across popular destinations.
Puerto Peñasco
34°C (93°F) Los Cabos
32°C (90°F) Tulum31°C (88°F) Cancún30°C (86°F) Playa del Carmen31°C (88°F) Puerto Vallarta29°C (84°F) San Miguel de Allende
27°C (81°F) Mexico City23°C (73°F) Bucket list
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