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Oaxaca, Oaxaca Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Oaxaca, Oaxaca?
Oaxaca, Oaxaca gets 436 mm of precipitation a year over about 52 rainy days. April is the warmest month (average high 34°C) and January the coldest (average low 8°C).
Semi-arid climate
Oaxaca, Oaxaca has hot summers and hot winters. Daytime highs range from about 29°C in December to 34°C in April. June is usually the wettest month.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 8° | 29° |
| Spring | Mar–May | 13° | 33° |
| Summer | Jun–Aug | 14° | 30° |
| Autumn | Sep–Nov | 12° | 29° |
How much rain does Oaxaca get?
Oaxaca gets 436 mm of precipitation in an average year, spread over about 52 days with measurable rain. That is fewer rainy days than 62% of Mexico.
June is the wettest month, with 89 mm. January is the driest, with 1 mm. June has the most rainy days, about 9.
The longest dry spell in the last five years lasted 48 days, to February 15, 2024.
From October 2025 to September 2026 Oaxaca got 872 mm of rain, against a normal of 436 mm for those months. September 2026 had the most, with 578 mm.
Oaxaca weather by month
Oaxaca weather in January
In January, Oaxaca averages a high of 29°C and a low of 8°C. It gets 1 mm of precipitation over about 0 rainy days. Estimated sunshine is 63% of daylight hours, derived from ERA5 cloud cover. The January record high is 36°C (2024) and the record low is 0°C (1996).
Oaxaca weather in February
In February, Oaxaca averages a high of 31°C and a low of 9°C. It gets 2 mm of precipitation over about 0 rainy days. Estimated sunshine is 79% of daylight hours, derived from ERA5 cloud cover. The February record high is 37°C (1995) and the record low is 0°C (1996).
Oaxaca weather in March
In March, Oaxaca averages a high of 32°C and a low of 11°C. It gets 9 mm of precipitation over about 2 rainy days. Estimated sunshine is 76% of daylight hours, derived from ERA5 cloud cover. The March record high is 37°C (2024) and the record low is 0°C (1995).
Oaxaca weather in April
In April, Oaxaca averages a high of 34°C and a low of 13°C. It gets 29 mm of precipitation over about 4 rainy days. Estimated sunshine is 64% of daylight hours, derived from ERA5 cloud cover. The April record high is 39°C (1994) and the record low is 7°C (1993).
Oaxaca weather in May
In May, Oaxaca averages a high of 33°C and a low of 15°C. It gets 51 mm of precipitation over about 6 rainy days. Estimated sunshine is 47% of daylight hours, derived from ERA5 cloud cover. The May record high is 39°C (2016) and the record low is 7°C (1983).
Oaxaca weather in June
In June, Oaxaca averages a high of 31°C and a low of 15°C. It gets 89 mm of precipitation over about 9 rainy days. Estimated sunshine is 24% of daylight hours, derived from ERA5 cloud cover. The June record high is 39°C (2026) and the record low is 8°C (2006).
Oaxaca weather in July
In July, Oaxaca averages a high of 29°C and a low of 14°C. It gets 70 mm of precipitation over about 9 rainy days. Estimated sunshine is 23% of daylight hours, derived from ERA5 cloud cover. The July record high is 37°C (2026) and the record low is 8°C (1982).
Oaxaca weather in August
In August, Oaxaca averages a high of 30°C and a low of 14°C. It gets 66 mm of precipitation over about 8 rainy days. Estimated sunshine is 20% of daylight hours, derived from ERA5 cloud cover. The August record high is 39°C (2026) and the record low is 6°C (1982).
Oaxaca weather in September
In September, Oaxaca averages a high of 29°C and a low of 14°C. It gets 80 mm of precipitation over about 9 rainy days. Estimated sunshine is 18% of daylight hours, derived from ERA5 cloud cover. The September record high is 36°C (2026) and the record low is 8°C (1986).
Oaxaca weather in October
In October, Oaxaca averages a high of 29°C and a low of 13°C. It gets 33 mm of precipitation over about 4 rainy days. Estimated sunshine is 30% of daylight hours, derived from ERA5 cloud cover. The October record high is 34°C (2004) and the record low is 4°C (2011).
Oaxaca weather in November
In November, Oaxaca averages a high of 29°C and a low of 10°C. It gets 7 mm of precipitation over about 1 rainy days. Estimated sunshine is 55% of daylight hours, derived from ERA5 cloud cover. The November record high is 35°C (2009) and the record low is 0°C (1994).
Oaxaca weather in December
In December, Oaxaca averages a high of 29°C and a low of 8°C. It gets 1 mm of precipitation over about 0 rainy days. Estimated sunshine is 62% of daylight hours, derived from ERA5 cloud cover. The December record high is 33°C (2009) and the record low is -1°C (1992).
Sunshine, humidity and wind in Oaxaca
February is the sunniest month in Oaxaca, with estimated sunshine of 79% of daylight hours from ERA5 cloud cover. September is the cloudiest, at 18%. The annual cloud-cover estimate is 47% of daylight hours; it is not a measurement of sunshine duration. Oaxaca is cloudier than 71% of Mexico.
Humidity peaks in September at 75% and is lowest in March at 50%.
Oaxaca has about 43 days a year above 32°C. Oaxaca is cooler than 69% of Mexico.
Oaxaca weather records
These records cover OAXACA OAX. during 1973–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Oaxaca station is 39°C, on June 28, 2026. The coldest is -1°C, on December 24, 1989.
The wettest day in the available station history brought 178 mm of precipitation, on January 26, 1974.
12 all-time records have been set at the station since 1973.
The best time to visit Oaxaca
Winter (December–February) is hot, with average highs around 29°C and lows near 9°C.
Spring (March–May) is hot, with average highs around 33°C and lows near 13°C.
Summer (June–August) is hot, with average highs around 30°C and lows near 14°C. It can feel humid.
Autumn (September–November) is hot, with average highs around 29°C and lows near 12°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 8° | 29° | 0.8 mm | 0 | 57% | 63% | 36° | 0° |
| February | 9° | 31° | 2.3 mm | 0 | 51% | 79% | 37° | 0° |
| March | 11° | 32° | 9.1 mm | 2 | 50% | 76% | 37° | 0° |
| April | 13° | 34° | 29 mm | 4 | 50% | 64% | 39° | 7° |
| May | 15° | 33° | 51 mm | 6 | 55% | 47% | 39° | 7° |
| June | 15° | 31° | 89 mm | 9 | 67% | 24% | 39° | 8° |
| July | 14° | 29° | 70 mm | 9 | 71% | 23% | 37° | 8° |
| August | 14° | 30° | 66 mm | 8 | 70% | 20% | 39° | 6° |
| September | 14° | 29° | 80 mm | 9 | 75% | 18% | 36° | 8° |
| October | 13° | 29° | 33 mm | 4 | 67% | 30% | 34° | 4° |
| November | 10° | 29° | 6.6 mm | 1 | 59% | 55% | 35° | 0° |
| December | 8° | 29° | 0.8 mm | 0 | 56% | 62% | 33° | -1° |
Station: OAXACA OAX., 2 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1973–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Oaxaca climate questions
How much rain does Oaxaca get?
Oaxaca gets 436 mm of precipitation in an average year, over about 52 rainy days.
What is the wettest month in Oaxaca?
June is the wettest month in Oaxaca, with 89 mm. January is the driest, with 1 mm.
How many rainy days does Oaxaca have a year?
Oaxaca has about 52 days with measurable rain in an average year. June has the most, about 9.
What is the hottest month in Oaxaca?
April is the warmest month in Oaxaca, with an average high of 34°C.
What is the coldest month in Oaxaca?
January is the coldest month in Oaxaca, with an average low of 8°C.
What is the record high temperature in Oaxaca?
Within the available 1973–2026 station history, the record high at the Oaxaca station is 39°C, set on June 28, 2026. The record low is -1°C, on December 24, 1989.
What is the sunniest month in Oaxaca?
February is the sunniest month in Oaxaca, with estimated sunshine of 79% of daylight hours from ERA5 cloud cover. September is the cloudiest.