February brings 26°C daytime highs, 5mm of precipitation across about 1 wet days and 11.4 hours of daylight — best for beach days and swimming. The strongest run of the year is January to March. July is the quietest month: low-key and inexpensive, and still good for beach days, swimming and green season.
Long-run climate normals for Oaxaca. Month ratings compare months within Oaxaca only — they are not a ranking of Oaxaca against other destinations, and they are not a forecast for a specific year.
Last updated: · Live forecast data refreshes hourly.
| Best month | February — Beach days, Swimming |
| Best 3-month window | January–March |
| Quietest month | July — fewest visitors |
| Driest month | January — 5mm |
| Wettest month | June — 130mm |
| Warmest / coolest | July 30°C / February 26°C |
| Seasonality | Fairly even across the year |
| Annual rainfall | 650mm over roughly 80 rain days |
July gets roughly 2300% more precipitation than February — 120mm against 5mm. That difference, more than temperature, is what changes how a day here feels.
Daytime highs only move 4°C across the whole year (26–30°C), so timing matters far less here than rainfall does.
January is the driest month at 5mm across roughly 1 wet days, while June peaks at 130mm.
January is almost as good as February, but usually quieter and cheaper. If your dates are flexible, it is the easier trip.
Oaxaca stays fairly consistent all year, so there is no month you need to avoid. What you plan to do matters more than when you go.
Ratings compare months within Oaxaca, not against destinations worldwide: five stars means the best time to be here, not that Oaxaca beats anywhere else. Tags describe what the conditions actually suit.
| Month | Rating | High / Low | Precipitation | Wet days | Sun | Daylight | Best for |
|---|---|---|---|---|---|---|---|
| January | ★★★★★ | 26°C / 8°C | 5mm | 1 | 8h | 11.1h | Beach days · Swimming |
| February | ★★★★★ | 26°C / 8°C | 5mm | 1 | 8h | 11.4h | Beach days · Swimming |
| March | ★★★★★ | 27°C / 9°C | 10mm | 1 | 8h | 11.9h | Beach days · Swimming |
| April | ★★★★★ | 27°C / 10°C | 20mm | 2 | 9h | 12.4h | Beach days · Swimming · Reliable sunshine |
| May | ★★★☆☆ | 29°C / 12°C | 55mm | 7 | 6h | 12.8h | Beach days · Swimming |
| June | ★★☆☆☆ | 29°C / 13°C | 130mm | 16 | 5h | 13h | Beach days · Swimming · Green season |
| July | ★★☆☆☆ | 30°C / 14°C | 120mm | 15 | 5h | 12.9h | Beach days · Swimming · Green season |
| August | ★★☆☆☆ | 30°C / 14°C | 110mm | 14 | 5h | 12.6h | Beach days · Swimming · Green season |
| September | ★★☆☆☆ | 29°C / 13°C | 120mm | 15 | 5h | 12.1h | Beach days · Swimming · Green season |
| October | ★★★☆☆ | 29°C / 12°C | 60mm | 7 | 6h | 11.6h | Beach days · Swimming |
| November | ★★★★★ | 27°C / 10°C | 10mm | 1 | 9h | 11.2h | Beach days · Swimming · Reliable sunshine |
| December | ★★★★★ | 27°C / 9°C | 5mm | 1 | 8h | 11h | Beach days · Swimming |
| You are planning | Pick | Why |
|---|---|---|
| Sun & beach days | November | 9h daily sunshine, 27°C highs and only 1 rain days. |
| City walking & sightseeing | January | 26°C highs with 11.1h of daylight — long days without heat fatigue. |
| Photography & light | November | 9h of sun and 11.2h daylight give the widest window for golden-hour work. |
| Value & fewer crowds | April | Scores 84/100 — close to peak conditions but outside the busiest window. |
| Cooler-weather travel | January | 26°C highs and 8°C nights suit anyone who dislikes heat. |
Each month in Oaxaca is described from long-run climate normals and then rated relative to the other eleven months in the same city. A five-star January in a cold destination means January is one of the best times to be there — not that it beats a Mediterranean summer.
| Factor | Weight | What it measures |
|---|---|---|
| Temperature | Described | Average daytime high and overnight low for the month, shown as measured rather than judged. |
| Precipitation | Described | Monthly millimetres and wet-day count, labelled as snow or rain/snow where temperatures make that the likely phase. |
| Sunshine & daylight | Described | Average daily sunshine hours and astronomical daylight length at mid-month, from the city’s latitude. |
| “Best for” tags | Derived | Applied only when the conditions genuinely support the activity — snow depth-friendly cold for skiing, 13–24°C and low rain risk for hiking, dark evenings at high latitude for aurora. A month with few strong use cases gets fewer tags rather than padded ones. |
| Star rating | Relative | Ranks the month against the other eleven months in the same city. Never a comparison between cities. |
Figures are long-run climate averages, not a forecast for a specific year. Where a month lacks sourced rainfall or humidity, the value is modelled from temperature range and rain frequency.
February is the best all-round month in Oaxaca: 26°C highs, 5mm of precipitation and 11.4 hours of daylight, which suits beach days and swimming. The strongest three-month window is January to March.
July — 30°C highs, 120mm of precipitation over roughly 15 days and 12.9 hours of daylight. It is the cheapest and least crowded time to go, and it still works for beach days, swimming and green season.
January is the driest month at 5mm over about 1 rain days, against 130mm in June. Across the year Oaxaca records around 650mm.
Yes — conditions in Oaxaca stay fairly even all year, so there is no month you need to avoid. What you plan to do matters more than when you go.
Daylight ranges from 11 hours in December to 13 hours in June, calculated from the city's latitude.