How warm is Guatemala's Caribbean coast in September?

Typical highs are about 86°F and the sea is about 88°F. That is warm enough for long swims without a wetsuit.

Is there sargassum in Guatemala's Caribbean coast in September?

In a typical year seaweed is very high in September. It is usually lightest in January and July and heaviest in September and October. Landings vary a lot by year, wind and currents; Veabird's weekly sargassum report and each beach's page have the current forecast.

Is September hurricane season in Guatemala's Caribbean coast?

September falls in the tropical storm season; the typical risk on a given day is moderate. It peaks in September. Travel insurance and flexible bookings help.

How crowded is Guatemala's Caribbean coast in September?

Typically quiet, around Labor Day weekend and Mexican Independence Day. The quietest months are usually September and October.

Guatemala's Caribbean coast in September

September is one of the weakest months for a beach trip to Guatemala's Caribbean coast: a typical day grades D, the 12th best of the 12 months. Expect highs near 86°F, water around 88°F and about a 94% chance of rain on a given day. Sargassum (seaweed) is usually very high in September. Beaches are typically quiet (Labor Day weekend and Mexican Independence Day). It is hurricane season, with moderate storm risk.

Typical dayD12th of 12 months

Highs / water86°FSea 88°F

Rain chance94%on a given day

SeaweedVery hightypical year

CrowdsQuietLabor Day weekend

Storm riskModeratehurricane season

Guatemala's Caribbean coast month by month

Typical grade and high for each month. Higher is better: A+ to F.

August: C- · September: D · October: C-. The best months are usually January, February and December, and the weakest are August and September.

Best beaches in Guatemala's Caribbean coast in September

Resorts with the best typical September, and their grades for the next few days.

Beach	Typical Sep	Seaweed	This week
Livingston Resort Hotel	D+	Very high	SatCSunCMonCTueCWedC
Beya Suites	D+	Very high	SatCSunCMonCTueCWedC+
Villa Caribe	D	Very high	SatDSunDMonDTueDWedD+
Livingston Beach Resorts	D-	Very high	SatD-SunFMonD-TueD-WedD

Grades for the next few days from Veabird's beach forecast, updated Oct 3, 18:00 UTC. Higher is better: A+ to F.

Better beach options in September

Elsewhere in Central & South America, Panama's Pacific beaches (B), Roatán & the Bay Islands (B) and Belize (B) usually grade higher in September. Further afield: Maui (A), Oʻahu (A) and Kauaʻi (A). Every destination in September.

Questions

Is September a good time to visit Guatemala's Caribbean coast?: September is one of the weakest months for a beach trip to Guatemala's Caribbean coast: a typical day grades D, the 12th best of the 12 months. Expect highs near 86°F, water around 88°F and about a 94% chance of rain on a given day. Sargassum (seaweed) is usually very high in September. Beaches are typically quiet (Labor Day weekend and Mexican Independence Day). It is hurricane season, with moderate storm risk.
How warm is Guatemala's Caribbean coast in September?: Typical highs are about 86°F and the sea is about 88°F. That is warm enough for long swims without a wetsuit.
Is there sargassum in Guatemala's Caribbean coast in September?: In a typical year seaweed is very high in September. It is usually lightest in January and July and heaviest in September and October. Landings vary a lot by year, wind and currents; Veabird's weekly sargassum report and each beach's page have the current forecast.
Is September hurricane season in Guatemala's Caribbean coast?: September falls in the tropical storm season; the typical risk on a given day is moderate. It peaks in September. Travel insurance and flexible bookings help.
How crowded is Guatemala's Caribbean coast in September?: Typically quiet, around Labor Day weekend and Mexican Independence Day. The quietest months are usually September and October.

Plan it

Guatemala Caribbean: this week's forecast, beach by beach
Sargassum Report: this week, updated every Monday
Compare dates and beaches on the map

Typical-month numbers from Veabird's year-ahead outlook for the 4 resorts here (median resort): 6 years of ERA5 climate normals, the seasonal pattern of the Atlantic sargassum belt, holiday crowd calendars and historical storm tracks. Any given year can differ; check the 16-day forecast before you go.