Playa Arenillas in september: average Weather, Temperature and Climate
Weather in Playa Arenillas in september 2025
The weather in Playa Arenillas in september comes from statistical datas on the last 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
tolerable weather UV index: 7
Weather at 6am
77°F
Partly Cloudy
35% of time
29%
23%
9%
Weather at 12pm
86°F
Partly Cloudy
42% of time
35%
14%
6%
Weather at 6pm
81°F
Partly Cloudy
38% of time
20%
18%
13%
Weather at 3am
77°F
40%
27%
22%
10%
Evolution of daily average temperature and precipitation in Playa Arenillas in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Playa Arenillas in september.
The climate of Playa Arenillas in september is tolerable
The weather in september in Playa Arenillas is wet (with 10.7in of precipitation over 18 days). Unfortunately, the weather conditions is worsening than the previous month since in august there is an average of 8.5in of rainfall over 13 days.
The climate enjoyable in that locality this month. The high seasonal norm is 86°F. In the morning the temperature drops to 77°F. Thus, the mean temperature average in september in Playa Arenillas is 81°F. Note that these seasonal averages are in contrast with those observed in Playa Arenillas in the month of september with a maximum record of 92°F in 2015 and a minimum record of 74°F in 2009. You can expect to have about 16 days with temperatures up to 86°F, or 53 of time.
On this month of september, day length in Playa Arenillas is generally 12:11. The sun rises at 05:32 and sets at 17:43.
With a correct weather, the month of september is okay (but not the best) to go in that area.
September: another location in Costa Rica?
If you want to go to Costa Rica in september, there are destinations with better weather than Playa Arenillas:
In september, Puerto Limón, Tortuguero, Manzanillo, Bananito Sur, Parc international La Amistad and Parismina have good weather.
Seasonal average climate and temperature of Playa Arenillas in september
Check below seasonal norms These datas are set from the weather statements earlier years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 81°F | ||||
| Highest temperature | 86°F | ||||
| Lowest temperature | 77°F | ||||
| Highest record temperature | 92°F (2015) | ||||
| Lowest record temperature | 74°F (2009) | ||||
| Number of days at +86°F | 16 day(s) (53%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 85°F | ||||
| Lowest sea temperature | 83°F | ||||
| Highest sea temperature | 87°F | ||||
| Wind | |||||
| Wind speed | 13km/h | ||||
| Wind temperature | 77°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 10.7in | ||||
| Number of days with rainfall | 18 day(s) (59%) | ||||
| Record daily rainfall | 5.3in (2021) | ||||
| Other climate data | |||||
| Humidity | 89% | ||||
| Visibility | 9.21km | ||||
| Cloud cover | 41% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:32 | ||||
| Time of sunset | 17:43 | ||||
| Length of day | 12:11 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last september?
Here is the day by day recorded weather in Playa Arenillas in september 2024:
77°F to 85°F
77°F to 85°F
77°F to 85°F
79°F to 85°F
79°F to 86°F
79°F to 86°F
79°F to 83°F
77°F to 83°F
77°F to 83°F
79°F to 85°F
79°F to 85°F
79°F to 85°F
79°F to 85°F
79°F to 86°F
79°F to 86°F
81°F to 86°F
81°F to 86°F
81°F to 86°F
79°F to 85°F
77°F to 81°F
77°F to 83°F
76°F to 77°F
77°F to 83°F
77°F to 79°F
76°F to 77°F
76°F to 79°F
76°F to 77°F
76°F to 83°F
77°F to 85°F
76°F to 83°F
Map: other cities in Costa Rica in september
Cities near Playa Arenillas:
| Playa Hermosa in september | tolerable weather |
| Belen in september | tolerable weather |
| Liberia (Guanacaste) in september | bad weather |
| Playa Flamingo (Guanacaste) in september | tolerable weather |
| Parque Nacional Santa Rosa in september | bad weather |
| Santa Cruz in september | very bad weather |
| Tamarindo in september | tolerable weather |
| Parque Nacional Palo Verde in september | very bad weather |
| Parque Nacional Guanacaste in september | bad weather |
| Parque Nacional Rincón de la Vieja in september | bad weather |
| La Cruz in september | tolerable weather |
| Nicoya in september | very bad weather |
Click over cities on the map for information about the weather in september.
Playa Arenillas
perfect weather
good
tolerable
bad
very bad
Weather data for Playa Arenillas in september:
Weather data for Playa Arenillas for september are derived from an average of the weather forecast since 2009 in Playa Arenillas. There is a margin of error and these forecasts are to be considered as general information only. The weather in Playa Arenillas 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 Playa Arenillas.