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Compare Costa Rica weather in February, from dry and sunny Tamarindo to wetter Puerto Viejo, plus Jacó, Arenal and San José.
San Buenaventura Weather in September
With daytime temperatures of 28°C (82°F) and nighttime lows of 22°C (72°F), September in San Buenaventura brings high temperatures during the day. Do keep in mind that September is part of the rainy season, with frequent and often heavy rainfall.
Rainfall in San Buenaventura in September
As part of the rainy season, San Buenaventura sees around 21 days of rain in September, with an average of 774 mm (30 in). The rain this month falls heavily when it arrives. Late afternoons in particular can see strong showers, so waterproofs are worth keeping handy.
Temperature in San Buenaventura in September
Daytime temperatures in San Buenaventura reach 28°C (82°F) in September, dropping to 22°C (72°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. Nights are mild at around 22°C (72°F), which is comfortable for most people.If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit San Buenaventura. Our weather planner can help you explore destinations with more pleasant weather conditions.
San Buenaventura Temperature in September
Min Temperature
22°C (72°F)
Max Temperature
28°C (82°F)
Chance of Rain
71%
Precipitation
774 mm (30 in)
Rainy days
21 days
San Buenaventura Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Buenaventura - and find the best time to visit.
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 San Buenaventura in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can.
San Buenaventura 3-Day Forecast
More climate data for San Buenaventura
See the full San Buenaventura 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
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Costa Rica in February: Pacific or Caribbean Coast?
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