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.
Playa Grande Weather in September
September in Playa Grande brings very high temperatures, with highs of 30°C (86°F) and nights dropping to 25°C (77°F). The rainy season is in full swing this month, so frequent downpours are part of the picture.
Rainfall in Playa Grande in September
Playa Grande is in the rainy season in September, with rain on around 23 days and an average of 324 mm (13 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.
Temperature in Playa Grande in September
Playa Grande in September gets highs of 30°C (86°F) during the day and drops to 25°C (77°F) at night. Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.
Sunshine in Playa Grande in September
With about 158 hours of sunshine, the area enjoys a nice balance of sun and rainy moments, creating a pleasant environment.September in Playa Grande has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Playa Grande Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
30°C (86°F)
Chance of Rain
77%
Precipitation
324 mm (13 in)
Rainy days
23 days
Humidity
86% *
Sunshine
158 hours *
Percentage Sunshine
*
* Data from: Liberia, Costa Rica (56 KM, 35 Miles).
Playa Grande Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Playa Grande - and find the best time to visit.
Daily Historical Temperatures
41-year average (1977-2025)
Based on our historical records, temperatures in Playa Grande typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in September
Daily Historical Precipitation
41-year average (1977-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Playa Grande in September
Browse day-by-day weather records for Playa Grande spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Playa Grande historical weather extremes in September
Based on 26 years of weather observations (1999-2025), these are the most extreme conditions recorded in Playa Grande.
- On September 23, 2023, temperatures climbed to 35°C (95°F), marking the warmest September day on record.
- Playa Grande experienced its chilliest September day on September 26, 2010, reaching only 25°C (77°F).
- The coldest night in September in Playa Grande was on September 25, 2006, with a minimum of 20°C (68°F).
- Peak precipitation in September occurred on September 7, 2021, when 208 mm (8.2 in) of precipitation was measured.
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 Playa Grande in September
Warm but pleasant conditions in Playa Grande 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Playa Grande 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
Playa Grande 3-Day Forecast
More climate data for Playa Grande
Temperature Rainfall Sunshine Humidity
See the full Playa Grande 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.