September · Belize
Best time to visit Lamanai in September Weather, crowds & prices
Weather in Lamanai in September
Average temperature 27°C, 200 mm of rain, about 21 days with 6+ hours of sunshine and 91% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
3.9/10
Ranked #7 of 12 months
- Avg temp
- 27°C
- Rainfall
- 200 mm
- Humidity
- 91%
- Days with 6h+ sun
- 21
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Lamanai scores 3.9/10 for sightseeing and cultural travel - ranked #7 of 12. Expect around 27°C, 200 mm of rain, and roughly 21 days with 6+ hours of sunshine this month.
Lamanai is reached by New River boat-Maya temples rising from rainforest with howler monkeys overhead. Best window: the drier months outside peak monsoon.
September in Lamanai — the hardest end of the year
Days in September average 27°C (81°F) and humidity near 91% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
This is the year's wettest stretch at 200 mm, but with about 21 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.
That is 3.9/10 on the same scale — 7th of 12 months, versus 7.3/10 for the best month here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Budget for low-season pricing, and crowds are light for this destination.
If your dates are flexible, February is materially better in Lamanai — 3.4 points higher on the same scale.
Frequently asked
- What is the weather like in Lamanai in September?
- In September, Lamanai averages 27°C, 200 mm of rain, and about 21 days with 6+ hours of sunshine. Its climate-comfort score is 3.9/10.
- Is September a good time to visit Lamanai?
- September earns a 3.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Lamanai in September?
- Expect about 200 mm of rain in September. Average humidity is 91% and there are about 21 days with 6+ hours of sunshine.
Curated in Lamanai
Tickets & experiences
Things to do in Lamanai
Lamanai, Belize. Live activities and tours from GetYourGuide, matched to this destination.