Mexico City weather in September

Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average

Mexico City September weather at a glance

D Challenging 😓

In September, Mexico City averages 16.9°C, with typical highs of 22.6°C and lows of 13.1°C. The historical average is 30 wet days and 79% humidity.

Compared with Seoul in September, it is 6°C cooler than Seoul, with 17 more wet days.

Mexico City September temperature & humidity

Average16.9°CHigh 22.6° / low 13.1°

Humidity79%

Wet days30 days100% of days

Day–night range9.5°

Mexico City September rain & wet days

Wet days30 daysHistorical monthly average

Share of wet days100%Not a forecast probability

Pack a light rain jacket, waterproof pouch and quick-dry shoes. Keep an indoor stop available between outdoor activities.

What to wear in Mexico City in September

T-shirts or long sleeves with one light outer layer should be comfortable. Rain is frequent at roughly 30 days in the month; pack a rain jacket and water-resistant shoes.

DaytimeLong sleeves and a light jacket · average high 22.6°C
Morning & eveningLong sleeves with a jacket or cardigan · average low 13.1°C
FootwearComfortable walking shoes; quick-dry footwear for rainy days.

Useful extras

Light outer layerRain jacketWater-resistant shoesCompact umbrella

Choose a destination packing checklist →

Packing essentials

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Travel compression packing pouches
코멧 여행용 압축 파우치 4종 세트 Travel plug adapter
에너자이저 PD 45W 여행용 멀티 어댑터, 화이트 Compact folding umbrella
솔리앤 초경량 UV차단 3단 자동우산 Inflatable travel neck pillow
마이워니 여행용 에어 목베개

Mexico City September sunrise & sunset times

2026 September · Local time (America/Mexico_City)

Sunrise on the 15th06:24

Sunset on the 15th18:39

Daylight duration12h 15m

Start, middle and end of the month
Date	Sunrise	Sunset	Daylight
2026-09-01	06:21	18:51	12h 30m
2026-09-15	06:24	18:39	12h 15m
2026-09-30	06:27	18:25	11h 58m

For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.

Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup

Mexico City travel updates

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Mexico City viewSkylineWebcams · Live video

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Mexico City travel essentials

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Best months to visit Mexico City

Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.

J F M A M J J A S O N D

ColdHot

September weather by year

September 202417°30 wet days, 80% humidity

September 202516.9°30 wet days, 78% humidity

Daily weather in 2025

Daily high and low temperatures; blue labels show precipitation

123°13°4.8mm

222°14°3.8mm

323°13°8.8mm

423°12°6mm

523°12°7.9mm

624°11°12mm

724°12°2mm

823°13°2.4mm

924°14°12mm

1024°14°14mm

1122°12°5.9mm

1222°14°16mm

1323°13°19mm

1423°13°2mm

1523°13°2.6mm

1623°13°19mm

1722°13°30mm

1823°13°3.9mm

1924°13°1.5mm

2023°12°14mm

2124°12°3.7mm

2225°14°2.5mm

2326°14°2.7mm

2424°14°17mm

2521°13°4.7mm

2622°12°13mm

2722°12°11mm

2822°14°19mm

2921°14°16mm

3022°14°8.4mm

Frequently asked questions

What is Mexico City weather like in September?

In September, Mexico City averages 16.9°C, with typical highs of 22.6°C and lows of 13.1°C. The historical average is 30 wet days and 79% humidity. Our weather-comfort rating for this month is challenging.

Does it rain a lot in Mexico City in September?

There are about 30 wet days in September. Pack a rain jacket and water-resistant shoes.

What should I wear in Mexico City in September?

T-shirts or long sleeves with one light outer layer should be comfortable. Rain is frequent at roughly 30 days in the month; pack a rain jacket and water-resistant shoes.

What are the best months to visit Mexico City?

Recent weather data rates January, February, March, April among the more comfortable months.

Where can I check Mexico City weather in September in real time?

Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.

What time are sunrise and sunset in Mexico City in September?

On 2026-09-15, calculated sunrise is 06:24 and sunset is 18:39 in local time (America/Mexico_City). Times vary by date and terrain.

Mexico City weather by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

More Americas destinations in September

Los Angeles San Francisco Las Vegas Seattle Chicago Boston Washington DC Miami Orlando Hawaii Honolulu Guam Saipan Vancouver Toronto Banff Montreal Cancun Lima All destinations →

Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations