Sayulita (Riviera Nayarit) weather in August

August in Sayulita: sweltering, soaked, with clean air — fine if you can take 25 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Sayulita🇲🇽 Mexico · Mexican Pacific Coast · Beach65
  1. 89Jan
  2. 92Feb
  3. 94Mar
  4. 97Apr
  5. 95May
  6. 80Jun
  7. 72Jul
  8. 65Aug
  9. 64Sep
  10. 76Oct
  11. 91Nov
  12. 90Dec

#11 of 12 months in Sayulita · #1016 of 1413 destinations to visit in August · comfort 65/100 (tier C)

Days
31°C
Nights
26°C
Wet days
25
Sun
9.1 h
Humidity
81%
Daylight
13 h
Sayulita, Mexico
Photo: Vladeta Jericevic · Pexels

Traveller notes on Sayulita in August

Other months in Sayulita

Sayulita's forum draws a real distinction between the two halves of October: the first couple of weeks are still properly rainy season, with high heat, humidity and torrential downpours mostly overnight, while the back half of the month sees the heavy rain largely wind down even though it's still genuinely hot and humid. Posters pointed to late October into early November as a real sweet spot, once the worst of the humidity has broken. Warm, swimmable ocean water year-round is a constant regardless of which half of the month you catch.
RivieraNayaritRegular · October · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe early April as one of the driest, most pleasant stretches of the year - mid-80sF days, mid-to-low-60sF nights, with no rain since the previous October and mosquito numbers correspondingly at their lowest. A cooling ocean breeze in the afternoon means posters recommend packing a light sweatshirt or pants even on an otherwise hot day. Posters contrast April favorably with February, noting shorts and short sleeves work fine in April versus needing light long sleeves and trousers earlier in the dry season. The one clear scheduling warning: Sayulita gets genuinely overwhelmed with domestic tourists during Semana Santa (Easter Holy Week), and posters consistently suggest avoiding that specific week if a quieter April visit is the goal.
Tripadvisor community · April · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Sayulita's card on the map.

Sayulita climate normals — August

Daytime high31°C / 88°F🔥 sweltering
Nighttime low26°C / 79°F
Feels like (high)38°C / 100°F
Sea temperature32°C / 89°F♨️ bath-warm
Rainfall247 mm / 9.7 in⛈ soaked
Rainy days25 days
Humidity81%💦 very humid
Dew point24°C / 76°F
Sunshine9.1 h/day
Daylight12.8 h
Wind9 km/h / 6 mph
Air quality (US AQI)41🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Sayulita in August

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Quietschool holidays in 3 of the markets that fill it, one of its worst months for weather(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Sayulita's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Toughest weatherSayulita's weather peaks March–May, best around April.

August coincides with Pacific hurricane season.

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Best weatherFair weatherToughest weather

What's on in Sayulita in August

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Hazard

    Pacific hurricane season

    15 May – 30 Nov

    Banderas Bay is sheltered by the headlands and usually gets swell and rain rather than a landfall, but September storms have taken the beach and the river mouth out before. The bay's shape is not a guarantee. Source ↗

  • Nature

    Turtle nesting and releases

    15 Jul – 15 Dec · usually

    Olive ridleys come ashore on the beaches either side of the point through the second half of the year, and the local camps run hatchling releases at dusk. Peak nesting is late summer, releases run into December.

  • Season

    Wet season

    MonsoonRisk

    25 rainy days and about 247 mm in the month — the real kind of rainy season, not afternoon showers.

    from the climate normals

What's on around the world in August →

Nearby, and something's on

Within 300 km of Sayulita — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Sayulita?

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Sayulita in August — FAQ

Is August a good time to visit Sayulita?
August in Sayulita: sweltering, soaked, with clean air — fine if you can take 25 rainy days. It ranks #11 of 12 months for Sayulita on SeasonMap's comfort score (65/100).
What is the weather like in Sayulita in August?
In August, Sayulita averages a daily high of 31°C and a low of 26.1°C, with about 247.4 mm of rain over roughly 25 rainy days.
What is the air quality in Sayulita in August?
Sayulita has a mean US Air Quality Index of about 41 in August.

Within 300 km: Puerto Vallarta's Rainy season on 15 Jun – 15 Oct.