September · Mexico
Best time to visit Loreto in September Weather, crowds & prices
Weather in Loreto in September
Average temperature 31°C, 47 mm of rain, about 27 days with 6+ hours of sunshine and 60% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
9.6/10
Ranked #7 of 12 months
- Avg temp
- 31°C
- Rainfall
- 47 mm
- Humidity
- 60%
- Days with 6h+ sun
- 27
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Loreto scores 9.6/10 for beach and coastal travel - ranked #7 of 12. Expect around 31°C, 47 mm of rain, and roughly 27 days with 6+ hours of sunshine this month.
Loreto faces islands in the Sea of Cortez-kayak days, mission history, and whale watching in season. Best window: cooler months from late autumn through early spring.
September in Loreto — one of the year's strongest windows (7th)
Days in September average 31°C (87°F) — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Budget for roughly 47 mm of rain this month — a flexible day or two helps — with about 27 days with 6+ hours of sunshine and 12.1 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Loreto at 9.6/10 (7th of 12), just behind May at 10/10.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
Budget for mid-season pricing, and crowds are moderate.
Frequently asked
- What is the weather like in Loreto in September?
- In September, Loreto averages 31°C, 47 mm of rain, and about 27 days with 6+ hours of sunshine. Its climate-comfort score is 9.6/10.
- Is September a good time to visit Loreto?
- September earns a 9.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Loreto in September?
- Expect about 47 mm of rain in September. Average humidity is 60% and there are about 27 days with 6+ hours of sunshine.
Curated in Loreto
Tickets & experiences
Things to do in Loreto
Loreto, Mexico. Live activities and tours from GetYourGuide, matched to this destination.