Swimming in Guatemala in september 2026 Sea temperature by city in september
Do you want to go to the beach in Guatemala in september 2026? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in september in Guatemala by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in Guatemala in september 2026
Here, find the average sea temperature in Guatemala in september in several coastal cities.
Pacific coast in september
87°F
min: 84°F / max: 89°F
Tulate
86°F
min: 84°F / max: 88°F
Caribbean coast in september
Río Dulce
86°F
min: 85°F / max: 87°F
Where should you go swimming in Guatemala in the month of september?
Swimming in Guatemala in september is ideal
In september in Guatemala swimming conditions are generally the same everywhere.
In september in Puerto San José, Río Dulce and Tulate, swimming conditions are perfect! With water reaching a maximum of 89°F and an average of 87°F, going in the water (and staying there!) feels great.
Where to go swimming in Guatemala in september: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in september
Puerto San José
| September | |||
| Average sea temperature | 87°F | ||
| Minimum sea temperature | 84°F | ||
| Maximum sea temperature | 89°F | ||
| Average outside temperature | 85°F | ||
| Maximum outside temperature | 90°F | ||
| Minimum outside temperature | 77°F | ||
| Precipitation | 10.4in | ||
| Number of days of precipitation | 16 jour(s) (52%) | ||
| Cloud cover | 37% | ||
| Our opinion | ideal swimming |
More information on swimming in Puerto San José in september
Río Dulce
| September | |||
| Average sea temperature | 86°F | ||
| Minimum sea temperature | 85°F | ||
| Maximum sea temperature | 87°F | ||
| Average outside temperature | 83°F | ||
| Maximum outside temperature | 90°F | ||
| Minimum outside temperature | 74°F | ||
| Precipitation | 14.2in | ||
| Number of days of precipitation | 20 jour(s) (68%) | ||
| Cloud cover | 41% | ||
| Our opinion | ideal swimming |
Tulate
| September | |||
| Average sea temperature | 86°F | ||
| Minimum sea temperature | 84°F | ||
| Maximum sea temperature | 88°F | ||
| Average outside temperature | 81°F | ||
| Maximum outside temperature | 88°F | ||
| Minimum outside temperature | 74°F | ||
| Precipitation | 15.7in | ||
| Number of days of precipitation | 22 jour(s) (73%) | ||
| Cloud cover | 36% | ||
| Our opinion | ideal swimming |
List of coastal cities in Guatemala
| Puerto San José in september | ideal swimming |
| Río Dulce in september | ideal swimming |
| Tulate in september | ideal swimming |