Boca San Carlos in september: average Weather, Temperature and Climate
Weather in Boca San Carlos in september 2025
The weather in Boca San Carlos in september comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also by clicking on 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 Boca San Carlos in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Boca San Carlos in september.
The climate of Boca San Carlos in september is bad
In september in Boca San Carlos, the climate 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 precipitation over 23 days.
The climate good in that locality this month. The thermometer averaged maximum of 86°F. On average, the recorded minimum temperature is 76°F. Thus, the mean temperature average on this month of september in Boca San Carlos is 81°F. Note that seasonal normals in contrast with those observed in Boca San Carlos in september with a maximum record of 94°F in 2015 and a minimum record of 68°F in 2009. You can expect to have about 15 days with temperatures above 86°F, or 50 of the month.
Day length in Boca San Carlos in september is 12:10. Sunrise is at 05:27 and sets at 17:37.
With a correct climate, september is okay (but not the best) to go in this locality 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 Boca San Carlos:
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 Boca San Carlos.
Seasonal average climate and temperature of Boca San Carlos in september
Check below seasonal norms These datas are compiled from the weather statements earlier 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 | 05:27 | ||||
| Time of sunset | 17:37 | ||||
| Length of day | 12:10 | ||||
| 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 Boca San Carlos in september 2024:
70°F to 81°F
70°F to 85°F
74°F to 86°F
79°F to 88°F
81°F to 90°F
76°F to 86°F
70°F to 88°F
68°F to 83°F
76°F to 85°F
81°F to 85°F
79°F to 85°F
83°F to 86°F
79°F to 88°F
77°F to 90°F
81°F to 86°F
79°F to 85°F
81°F to 85°F
81°F to 86°F
77°F to 85°F
74°F to 83°F
72°F to 81°F
70°F to 81°F
70°F to 85°F
70°F to 86°F
70°F to 79°F
68°F to 88°F
74°F to 81°F
76°F to 90°F
76°F to 88°F
77°F to 86°F
Map: other cities in Costa Rica in september
Cities near Boca San Carlos:
| Quesada in september | very bad weather |
| Parque Nacional Juan Castro Blanco in september | very bad weather |
| La Fortuna in september | bad weather |
| Isla Calero in september | bad weather |
| Volcán Poás in september | very bad weather |
| Volcán Arenal in september | bad weather |
| Parque Nacional Braulio Carrillo in september | very bad weather |
| Guapiles in september | good weather |
| Naranjo in september | very bad weather |
| Tortuguero in september | good weather |
| San Ramon in september | very bad weather |
| Guacimo in september | good weather |
Click over cities on the map for information about the weather in september.
Boca San Carlos
perfect weather
good
tolerable
bad
very bad
Weather data for Boca San Carlos in september:
Weather data for Boca San Carlos for september are derived from an average of the weather forecast since 2009 in Boca San Carlos. There is a margin of error and these forecasts are to be considered as general information only. The weather in Boca San Carlos 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 Boca San Carlos.