Oaxaca in September
In September, Oaxaca averages 25°C (76°F) during the day and 15°C (59°F) at night, with frequent rain — about 26 days of the month see precipitation (166 mm total).
ShoulderConditions are comfortable for sightseeing without being sweltering. Expect daily rain or showers, often in heavy bursts.
September offers comfortable temperatures in Oaxaca, with some rain to plan around.
How September compares to the rest of the year in Oaxaca
September is one of the coolest months in Oaxaca (12th of 12) and moderately rainy compared to the rest of the year (4th of 12). Daytime temperature runs 2°C below the annual average (26°C). September runs 1°C cooler than August (26°C) and stays flat into October.
September sunrise & sunset in Oaxaca
Times shown for Oaxaca local time (America/Mexico_City), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Oaxaca — September
Golden-hour and blue-hour windows for the 15th of September, in Oaxaca's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Oaxaca in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Shoulder) and Oaxaca's popularity.
Crowds & pricing — September in Oaxaca
Oaxaca is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Why this tier: comfortable tourism weather
Sun & mosquito risk — September in Oaxaca
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Oaxaca in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 25°C / 77°F | 10°C / 51°F | 3 mm | 3 | — |
| February | 27°C / 81°F | 11°C / 52°F | 2 mm | 3 | — |
| March | 29°C / 84°F | 13°C / 55°F | 18 mm | 7 | — |
| April | 30°C / 87°F | 15°C / 59°F | 22 mm | 12 | — |
| May | 29°C / 84°F | 16°C / 60°F | 90 mm | 20 | — |
| June | 26°C / 78°F | 15°C / 60°F | 155 mm | 26 | — |
| July | 26°C / 78°F | 14°C / 58°F | 103 mm | 27 | — |
| August | 26°C / 78°F | 15°C / 58°F | 130 mm | 27 | — |
| September | 25°C / 76°F | 15°C / 59°F | 166 mm | 26 | — |
| October | 25°C / 77°F | 14°C / 57°F | 87 mm | 18 | — |
| November | 25°C / 78°F | 12°C / 54°F | 7 mm | 8 | — |
| December | 25°C / 78°F | 11°C / 52°F | 2 mm | 2 | — |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Oaxaca in September →
Frequently asked questions
How hot is Oaxaca in September?
In September, Oaxaca averages a high of 25°C (76°F) and a low of 15°C (59°F) — generally warm.
Does it rain a lot in Oaxaca in September?
September is quite rainy in Oaxaca, with about 26 rainy days on average.
Is September a good time to visit Oaxaca?
September is warm but on the rainy side. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Oaxaca in September?
Pack light layers for warm days and cooler evenings, plus a compact umbrella or rain jacket. See the full September packing list for Oaxaca for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.