Oaxaca in Summer
In summer (June, July and August), Oaxaca sees average daytime highs around 25°C and overnight lows near 14°C, with 392 mm of rain over about 46 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 25°C. The sky is clear or mostly clear about 10% of the time across summer, and the air most often feels comfortable.
Summer is Oaxaca's weakest season of the year to visit on our travel score. For the whole year in context, see Oaxaca's year-round climate.
- Avg daytime high
- 25°C
- 2nd-warmest season
- Avg overnight low
- 14°C
- Rainfall
- 392 mm
- 46 wet days
- Avg wind
- 6 km/h
- Travel score
- 5.8
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Oaxaca in Summer
Across summer, daytime highs hold fairly steady around 25°C.
A typical summer day in Oaxaca reaches about 25°C and drops to 14°C overnight. The warmest of the three months is June, the coolest July.
Oaxaca weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 24° / 9° | 3 | 0.6 | 11.1 | 9.0 |
| Feb | 26° / 10° | 5 | 1.1 | 11.4 | 8.8 |
| Mar | 27° / 11° | 16 | 2.9 | 11.9 | 8.0 |
| Apr | 28° / 13° | 29 | 5 | 12.4 | 6.8 |
| May | 27° / 14° | 73 | 9.3 | 12.8 | 6.5 |
| Jun | 25° / 14° | 163 | 17 | 13 | 5.5 |
| Jul | 25° / 14° | 104 | 13.9 | 12.9 | 6.0 |
| Aug | 25° / 14° | 125 | 15.1 | 12.6 | 5.8 |
| Sep | 24° / 14° | 160 | 17.2 | 12.1 | 5.5 |
| Oct | 24° / 13° | 71 | 8.7 | 11.6 | 7.0 |
| Nov | 24° / 11° | 10 | 2 | 11.2 | 8.5 |
| Dec | 24° / 10° | 4 | 0.8 | 11 | 9.1 |
Cloud cover in Summer
The sky is clear or mostly clear about 10% of the time across summer.
Chance of precipitation in Summer
Oaxaca gets around 392 mm of rain over 46 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 6 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 54 min in early June to 12 h 24 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.6 kWh/m².
Hazard calendar for Oaxaca
In summer, Oaxaca overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Oaxaca's rainy season runs June–September, when most of the year's rain falls.
Is summer a good time to visit Oaxaca?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Oaxaca for sightseeing.
What to pack for Oaxaca in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Oaxaca sees daytime highs around 25°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 46 days see rain.
UV index in Oaxaca in Summer
Clear-sky midday UV across summer averages around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Oaxaca peaks around April 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 9 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 10 | 13 | 14 | 15 | 12 | 14 | 13 | 14 | 13 | 12 | 9 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 13 | Extreme |
| Mar | 14 | Extreme |
| Apr | 15 | Extreme |
| May | 12 | Extreme |
| Jun | 14 | Extreme |
| Jul | 13 | Extreme |
| Aug | 14 | Extreme |
| Sep | 13 | Extreme |
| Oct | 12 | Extreme |
| Nov | 9 | Very high |
| Dec | 9 | Very high |
Air quality in Oaxaca in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Oaxaca is worst in May — around 31 µg/m³ PM2.5 (moderate), about 3.7× the cleanest month (January, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 11 | 13 | 21 | 31 | 17 | 18 | 14 | 13 | 10 | 9 | 9 |
| Level | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 11 | Good |
| Mar | 13 | Moderate |
| Apr | 21 | Moderate |
| May | 31 | Moderate |
| Jun | 17 | Moderate |
| Jul | 18 | Moderate |
| Aug | 14 | Moderate |
| Sep | 13 | Moderate |
| Oct | 10 | Good |
| Nov | 9 | Good |
| Dec | 9 | Good |
Where is Oaxaca?
Oaxaca sits at 17.1°N, 96.7°W, 1,571 m above sea level, in Mexico. The nearest listed city is Santa Cruz Xoxocotlán, 4.0 km away.
Topography around Oaxaca
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Oaxaca.
Within 3 km, the terrain around Oaxaca has significant variations in elevation — a maximum elevation change of 282 m around an average of 1,568 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,802 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,193 m.
The land around Oaxaca is covered by artificial surfaces (79%) within 3 km, trees (35%), grassland (21%) and cropland (20%) within 16 km, and trees (66%) within 80 km.
Mexico travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B
- 120 / 127 V · 60 Hz
- Prices
- ≈ 54% of US
- price level, 2025
- GDP per capita
- $13,889
- 2025
- Happiness
- 7.0 / 10
- World Happiness, 2025
- Safe drinking water
- 43%
- of population, 2024
- Homicide rate
- 24.9
- per 100k, 2023
- Road deaths
- 12.8
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very low
- EF EPI 440
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Oaxaca (17.0602°, -96.7254°, elevation 1,571 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.