Ometepe weather in September
Nicaragua

September in Ometepe: sweltering, soaked, with clean air — a gamble, with 29 rainy days.
#10 of 12 months in Ometepe · #1044 of 1383 destinations to visit in September · comfort 64/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Ometepe in September
No notes yet. Open Ometepe on the map to add the first one.
Ometepe climate normals — September
| Daytime high | 30°C / 86°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 25°C / 77°F | |
| Feels like (high) | 36°C / 97°F | |
| Rainfall | 291 mm / 11.5 in | ⛈ soaked |
| Rainy days | 29 days | |
| Humidity | 85% | 💦 very humid |
| Dew point | 24°C / 76°F | |
| Sunshine | 9.8 h/day | |
| Daylight | 12.2 h | |
| Wind | 21 km/h / 13 mph | |
| Air quality (US AQI) | 22 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Ometepe in September
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.
Quiettravelers describe it as quiet, school holidays in 2 of the markets that fill it
Sourced from traveler notes: “…in low spots, so sturdy footwear matters. September is also low season, meaning noticeably cheaper prices across the island.” — LakeNicaraguaIslandRegular
Peak crowdsBusyShoulder seasonQuiet
Best months for Ometepe'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 weatherOmetepe's weather peaks January–March, best around February.
Best weatherFair weatherToughest weather
What's on in Ometepe in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Wet season
MonsoonRisk29 rainy days and about 291 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Nearby, and something's on
Within 300 km of Ometepe — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Ometepe?
Ometepe in September — FAQ
- Is September a good time to visit Ometepe?
- September in Ometepe: sweltering, soaked, with clean air — a gamble, with 29 rainy days. It ranks #10 of 12 months for Ometepe on SeasonMap's comfort score (64/100).
- What is the weather like in Ometepe in September?
- In September, Ometepe averages a daily high of 30.2°C and a low of 25.2°C, with about 291 mm of rain over roughly 29.3 rainy days.
- What is the air quality in Ometepe in September?
- Ometepe has a mean US Air Quality Index of about 22 in September.
Other months in Ometepe
Compare Ometepe in September
Warmer or cooler than Ometepe in September
Similar destinations in Central America — September
Within 300 km: Nosara's Arribada at Ostional around 1 Jul – 31 Dec, and Jacó's Humpback whales around 15 Jul – 15 Nov.