La Fortuna in september: average Weather, Temperature and Climate
Weather in La Fortuna in september 2025
The weather in La Fortuna in september comes from statistical datas on the past years. You can view the weather statistics for all the month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
bad weather UV index: 7
Weather at 6am
76°F
Fog
30% of time
25%
23%
16%
Weather at 12pm
86°F
Moderate rain at times
47% of time
21%
17%
13%
Weather at 6pm
81°F
Heavy rain
62% of time
23%
9%
7%
Weather at 3am
77°F
50%
22%
14%
9%
Evolution of daily average temperature and precipitation in La Fortuna in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in La Fortuna in september.
The climate of La Fortuna in september is bad
The weather in september in La Fortuna is wet (with 13.9in of precipitation over 22 days). It should be noted an improvement from the previous month since in august it receives an average of 16in of rainfall over 23 days.
The climate pleasant there september. The thermometer averaged maximum of 86°F. The seasonal minimum is 76°F. Thus, the mean temperature average on this month of september in La Fortuna is 81°F. These temperatures are far removed from those records observed in La Fortuna in september with a maximum record of 94°F in 2015 and a minimum record of 68°F in 2009. You can plan to have about 15 days with temperatures up to 86°F, or 50 of time.
On average, in La Fortuna, the days of september last 12:11. The sun rises at 05:28 and sets at 17:39.
With proper weather, september is okay (but not the best) to go in La Fortuna in Costa Rica.
September: another location in Costa Rica?
If you want to go to Costa Rica in september, there are destinations with better weather than La Fortuna:
In september, Puerto Limón, Tortuguero, Manzanillo, Bananito Sur, Parc international La Amistad and Parismina have good weather.
Finally, La Cruz, Tamarindo, Esterillos, Parque Nacional Carara, Playa Arenillas and Playa Flamingo (Guanacaste) have a tolerable climate, but better than La Fortuna.
Seasonal average climate and temperature of La Fortuna in september
Check below seasonal norms These datas are compiled from the weather statements of the last years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 81°F | ||||
| Highest temperature | 86°F | ||||
| Lowest temperature | 76°F | ||||
| Highest record temperature | 94°F (2015) | ||||
| Lowest record temperature | 68°F (2009) | ||||
| Number of days at +86°F | 15 day(s) (50%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Wind | |||||
| Wind speed | 9km/h | ||||
| Wind temperature | 76°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 13.9in | ||||
| Number of days with rainfall | 22 day(s) (74%) | ||||
| Record daily rainfall | 2.5in (2021) | ||||
| Other climate data | |||||
| Humidity | 95% | ||||
| Visibility | 7.48km | ||||
| Cloud cover | 44% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:28 | ||||
| Time of sunset | 17:39 | ||||
| Length of day | 12:11 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | bad | ||||
How was the weather last september?
Here is the day by day recorded weather in La Fortuna in september 2024:
72°F to 85°F
72°F to 92°F
72°F to 88°F
74°F to 94°F
74°F to 90°F
74°F to 90°F
74°F to 88°F
72°F to 85°F
74°F to 81°F
74°F to 88°F
74°F to 86°F
74°F to 88°F
74°F to 92°F
72°F to 92°F
74°F to 88°F
74°F to 86°F
74°F to 86°F
76°F to 86°F
74°F to 86°F
72°F to 79°F
72°F to 85°F
72°F to 76°F
72°F to 88°F
74°F to 85°F
72°F to 81°F
74°F to 90°F
72°F to 79°F
72°F to 92°F
72°F to 90°F
72°F to 88°F
Map: other cities in Costa Rica in september
Cities near La Fortuna:
| Volcán Arenal in september | bad weather |
| Santa Elena in september | very bad weather |
| Quesada in september | very bad weather |
| Monteverde in september | very bad weather |
| Tilaran in september | very bad weather |
| Parque Nacional Juan Castro Blanco in september | very bad weather |
| Miramar in september | very bad weather |
| San Ramon in september | very bad weather |
| Parque Nacional Volcán Tenorio in september | bad weather |
| Canas in september | very bad weather |
| Naranjo in september | very bad weather |
| Esparza in september | very bad weather |
Click over cities on the map for information about the weather in september.
La Fortuna
perfect weather
good
tolerable
bad
very bad
Weather data for La Fortuna in september:
Weather data for La Fortuna for september are derived from an average of the weather forecast since 2009 in La Fortuna. There is a margin of error and these forecasts are to be considered as general information only. The weather in La Fortuna can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to La Fortuna.