Central America in September: Weather, Crowds & What to Expect
Climate Map for September
Average temperature across Central America in September.
Country Weather in September
| Country | High | Low | Rain | UV | Feels |
|---|---|---|---|---|---|
| Guatemala | 24° | 15° | 265 mm | extreme | Mild |
| Honduras | 29° | 17° | 198 mm | extreme | Mild |
| Nicaragua | 30° | 22° | 324 mm | extreme | Warm |
| El Salvador | 28° | 18° | 360 mm | extreme | Mild |
| Costa Rica | 26° | 15° | 473 mm | extreme | Mild |
| Panama | 30° | 23° | 191 mm | very high | Warm |
| Belize | 31° | 24° | 233 mm | extreme | Hot |
Representative figures from each country's largest city. High / low are average daily temperatures (°C); “Feels” allows for humidity.
Pacific Coast & the Dry Corridor (Guatemala Pacific, El Salvador, Nicaragua Pacific, Costa Rica Pacific-Guanacaste, Nicoya, Manuel Antonio; Panama Pacific beaches like Pedasí & Playa Venao)
September sits near the peak of hurricane season for Atlantic-origin storms that can also influence Pacific weather via coastal swell and instability; regular heavy rains and cloudier days are typical. Surf can be powerful, and tropical waves increase the chance of a significant storm system; international travelers should monitor weather advisories. On the plus side, crowds are very light and lodgings inexpensive if you are comfortable with afternoon storms and occasional cancellations.
Caribbean Coast & Bay Islands (Belize coast & Cayes, Honduras Bay Islands Roatán/Utila, Nicaragua Caribbean RAAS, Costa Rica Limon, Panama San Blas & Bocas del Toro)
The late-season rains continue into September with frequent overcast periods and heavy showers, and the risk of tropical disturbances is highest in this month. Island services run but may be suspended with bad weather; travelers should expect a quieter tourism scene and favorable prices. If you’re planning diving, try to schedule multiple days to allow for cancellations and look for operators who monitor local reef conditions.
Highlands & Volcanic Belt (Guatemala Highlands-Antigua, Lake Atitlán, Quetzaltenango; El Salvador & Nicaragua highlands, Costa Rica Central Valley & foothills)
September is typically one of the wettest months in the highlands, with persistent cloud cover and heavy rain intervals that can make long hikes unpleasant or impossible. Visibility is often low for panoramic viewpoints and volcano photography; road travel may slow on unpaved sections. If you don’t mind dramatic cloudscapes and near-empty trails, you’ll find low prices and cozy lodgings, but check local advice before attempting high-altitude treks.
Cloud Forests & High-Mountain Reserves (Monteverde, Cerro Chirripó, Costa Rica’s central highlands; Panama’s Boquete & Chiriquí)
September remains in the rainy heart of the year with heavy cloud cover and frequent soaked trails; this is a low-traffic month and conservation projects may be less accessible. Heavy rains can alter river crossings and make some remote hikes risky-consult local guides. For those comfortable with raw, wet nature, the forests’ orchids and amphibians are in display, but plan shorter days and protected gear.
Belize Mainland & the Barrier Reef (Belize-Ambergris Caye, Caye Caulker, inland cayes and mainland)
September is typically one of the quieter months for tourism and also one of the riskiest for tropical weather; many operators reduce schedules and some lodges close for maintenance. If you come during September you’ll find low prices and peaceful islands, but bring contingency plans and travel insurance. Always check the hurricane outlook and prepare for possible service interruptions.