Costa Rica in February: Pacific or Caribbean Coast?
Compare Costa Rica weather in February, from dry and sunny Tamarindo to wetter Puerto Viejo, plus Jacó, Arenal and San José.
Carrillo Weather in September
Carrillo in September sees high temperatures, with highs around 29°C (84°F) and overnight lows of 24°C (75°F). With the rainy season in full effect, expect around 429 mm (17 in) of rainfall and regular showers throughout the month.
Rainfall in Carrillo in September
Carrillo is in the rainy season in September, with rain on around 23 days and an average of 429 mm (17 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours, often in the late afternoon.
Temperature in Carrillo in September
Daytime temperatures in Carrillo reach 29°C (84°F) in September, dropping to 24°C (75°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights are warm at 24°C (75°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Carrillo in September
The city usually sees around 159 hours of sunlight, indicating a moderately sunny period (despite it being part of rainy season).Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February and March typically offer the best weather for Carrillo.
Carrillo Temperature in September
Min Temperature
24°C (75°F)
Max Temperature
29°C (84°F)
Chance of Rain
76%
Precipitation
429 mm (17 in)
Rainy days
23 days
Sunshine
159 hours *
Percentage Sunshine
*
* Data from: Puntarenas, Costa Rica (70 KM, 43 Miles).
Carrillo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Carrillo - and find the best time to visit.
Historical weather records for Carrillo in September
Browse day-by-day weather records for Carrillo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Carrillo historical weather extremes in September
Based on 19 years of weather observations (2006-2025), these are the most extreme conditions recorded in Carrillo.
- On September 20, 2015, temperatures climbed to 30°C (86°F), marking the warmest September day on record.
- On September 24, 2010, Carrillo saw its coldest September day with temperatures maxing out at 25°C (77°F).
- The lowest overnight temperature recorded in September was 23°C (73°F) (September 21, 2006).
- The heaviest September precipitation occurred on September 14, 2019, when 84 mm (3.3 in) of precipitation fell.
Best Places in Costa Rica in September
Find out more about the weather in Costa Rica and which places have the best travel conditions in this month. See all of Costa Rica in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Carrillo in September
Warm but pleasant conditions in Carrillo in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. Sunglasses could come in handy during the sunnier parts of your trip.
What To Do in Carrillo in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Swimming7/10 -
Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Carrillo 3-Day Forecast
More climate data for Carrillo
See the full Carrillo climate overview or explore weather in Costa Rica.
Popular in September
Where to go in September - average daytime high across popular destinations.
Tamarindo
30°C (86°F) Cahuita29°C (84°F) Santa Teresa29°C (84°F) Herradura28°C (82°F) Puerto Viejo de Talamanca29°C (84°F) Fortuna29°C (84°F) Jacó28°C (82°F) San José24°C (75°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Costa Rica in February: Pacific or Caribbean Coast?
Where the rain forest meets the ocean
I promise that you will not find a better location, better views, nicer rooms or lovelier staff anywhere in Costa Rica. This place really goes above and beyond.
Exploring Santa Teresa, Costa Rica: A Traveler's Guide
Immerse yourself in the laid-back charm of Santa Teresa, Costa Rica. Discover stunning beaches, vibrant dining spots, unique shops, and diverse activities in our comprehensive guide
Envision Festival
This event happens once a year in Uvita de Puntarenas and attracts people from all over the world. This festival is a must add to your bucket list.