Mexico Oaxaca Weather in August — Climate Guide
August in Oaxaca is moderate
Oaxaca Weather in August — Quick Answer
As of 2026- Avg temp
- 28° / 14°
- Rainfall
- 110mm · 16 days
- Crowds
- Moderate
As of 2026, Oaxaca in August averages a high of 28°C and low of 14°C with 110mm of rain over about 16 days. Warm, humid, and one of the wettest months — days around 28°C with frequent afternoon storms. Light clothing, a reliable umbrella, and waterproof/quick-dry shoes. Sunny mornings — hat and SPF; a light evening layer.
August is moderate for Oaxaca.
August stays warm and is one of the wettest months — days around 28°C with frequent heavy afternoon and evening storms. Rainfall is about 110mm over roughly 16 rainy days.
The rhythm is the familiar rainy-season one: bright mornings, building clouds, and downpours later, so sightsee early and keep indoor backups. The countryside is at its greenest, with full rivers and lush hills.
Travel score
Oaxaca August Weather Stats
Avg High
28°C
Avg Low
14°C
Rainy Days
16
110mm total
Sunshine
6h
Daily avg
Humidity
65%
muggy
UV Index
9
Very high
Wind
7 km/h
Gusts 16
Crowds
Moderate
At attractions
August Sunrise & Sunset
Air Quality
PM2.5
14 μg/m³
PM10
26 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
29°C
Nighttime
15°C
Humidity and wind affect how the actual temperature feels.
Wind
7 km/h
Max gust 16 km/h
Activities Recommended for August
August Travel Pros & Cons
Pros
- Lush green landscapes at their peak
- Calmer and better value after Guelaguetza
- Sunny mornings for early sightseeing
- Easy availability outside festivals
Cons
- One of the wettest months (110mm)
- Frequent afternoon storms
- Hierve el Agua access can be affected
- Humid (65%)
August Events & Festivals
- Wettest stretch continues
- Green low season — moderate value
- Lush valleys and full rivers
- Post-Guelaguetza calm
Oaxaca in August — Full Picture
August stays warm and is one of the wettest months — days around 28°C with frequent heavy afternoon and evening storms. Rainfall is about 110mm over roughly 16 rainy days.
The rhythm is the familiar rainy-season one: bright mornings, building clouds, and downpours later, so sightsee early and keep indoor backups. The countryside is at its greenest, with full rivers and lush hills.
After July's Guelaguetza rush, August settles back into a calmer, moderately priced green season — good value if you can work around the daily rain.
The Hierve el Agua route can be affected by heavy rain, so confirm tours before booking. Otherwise August is a peaceful, verdant month for travelers happy to carry an umbrella.
What to Wear & What to Pack
Warm, humid, and one of the wettest months — days around 28°C with frequent afternoon storms. Light clothing, a reliable umbrella, and waterproof/quick-dry shoes. Sunny mornings — hat and SPF; a light evening layer.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
31.7°C
12.7°C
5/mo
Summer (Jun·Jul·Aug)
Current28°C
14°C
15.7/mo
Autumn (Sep·Oct·Nov)
27.3°C
12°C
9.7/mo
Winter (Dec·Jan·Feb)
28.3°C
8.7°C
1/mo
Oaxaca Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Best) | 28° | 8° | 1d·5mm | 8h | 50% | 8 | Busy | Peak |
| February (Best) | 30° | 9° | 1d·5mm | 8.5h | 45% | 9 | Moderate | Shoulder |
| March (Best) | 32° | 11° | 2d·10mm | 8.5h | 45% | 10 | Moderate | Shoulder |
| 32° | 13° | 4d·25mm | 8h | 50% | 10 | Busy | Peak | |
| 31° | 14° | 9d·60mm | 7h | 55% | 10 | Quiet | Low season | |
| 28° | 14° | 16d·110mm | 5.5h | 65% | 9 | Quiet | Low season | |
| 28° | 14° | 15d·95mm | 6h | 65% | 9 | Busy | Peak | |
| 28° | 14° | 16d·110mm | 6h | 65% | 9 | Moderate | Shoulder | |
| 27° | 14° | 17d·130mm | 5.5h | 70% | 8 | Quiet | Low season | |
| October (Best) | 27° | 12° | 9d·60mm | 6.5h | 60% | 8 | Very busy | Peak |
| November (Best) | 28° | 10° | 3d·15mm | 8h | 50% | 7 | Busy | Peak |
| December (Best) | 27° | 9° | 1d·5mm | 8h | 50% | 7 | Very busy | Peak |
View Other Months
Oaxaca August Hotel Picks
Frequently Asked Questions
Is August a good time to visit Oaxaca?
Oaxaca in August is moderate. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Oaxaca in August?
Oaxaca August averages a high of 28°C and a low of 14°C.
Does it rain much in Oaxaca in August?
Oaxaca August averages 110mm of rainfall over about 16 rainy days.
What should I wear in Oaxaca in August?
Warm, humid, and one of the wettest months — days around 28°C with frequent afternoon storms. Light clothing, a reliable umbrella, and waterproof/quick-dry shoes. Sunny mornings — hat and SPF; a light evening layer.
What time are sunrise and sunset in Oaxaca in August?
Oaxaca August sunrise is 06:15 and sunset is 18:55, with 12h 40min of daylight.
What's the air quality like in Oaxaca in August?
Oaxaca August air quality (AQI) averages 38, rated Good. PM2.5 averages 14μg/m³.
What activities are recommended in Oaxaca in August?
In August, Oaxaca is great for Morning sightseeing before the rain, Markets and the smoke hall, Cultural museum + cooking class (indoor).
Is August peak season in Oaxaca?
Oaxaca August crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Oaxaca
View Other Months
Planning a August trip to Oaxaca?
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Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.