Osa Peninsula Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in the Osa Peninsula, Costa Rica in September.

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Puerto Jiménez Carate

Are you planning a trip a to the Osa Peninsula, Costa Rica in September and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in the Osa Peninsula in September

The Osa Peninsula, Costa Rica is a region in Costa Rica. September in the Osa Peninsula generally has warm temperatures, with heavy precipitation.

Temperatures

You can expect warm maximum daytime temperatures of around 29°C (84°F) and nighttime temperatures around 24°C (75°F) in Puerto Jiménez.

To explore the conditions in the Osa Peninsula, Costa Rica in more detail, check the map below.

Precipitation

In September, precipitation varies across different areas. From heavy rainfall in Puerto Jiménez with an average of 492 mm (19 in) to heavy rainfall in Carate with 552 mm (22 in).

Explore the Osa Peninsula by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Best Places to Visit in the Osa Peninsula in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across the Osa Peninsula.

Conditions Temperatures Precipitation
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).

Popular Destinations in the Osa Peninsula

What is the weather like in September for some of the most popular destinations in the Osa Peninsula, Costa Rica?

Temperature range in the Osa Peninsula (September)

Precipitation variation in the Osa Peninsula (September)

Puerto Jiménez

In September Puerto Jiménez generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« August
September
October »
August
September
October
Max temperature
29°C (84°F)
29°C (84°F)
28°C (82°F)
Min temperature
25°C (77°F)
24°C (75°F)
24°C (75°F)
Monthly rainfall
509 mm (20 in)
492 mm (19 in)
674 mm (27 in)
Monthly rainy days
22 days
21 days
21 days
Weather conditions
poor
poor
poor
Climate in Puerto Jiménez →

Carate

In September Carate generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« August
September
October »
August
September
October
Max temperature
29°C (84°F)
29°C (84°F)
28°C (82°F)
Min temperature
25°C (77°F)
24°C (75°F)
24°C (75°F)
Monthly rainfall
555 mm (22 in)
552 mm (22 in)
705 mm (28 in)
Monthly rainy days
22 days
21 days
21 days
Weather conditions
poor
poor
poor
Climate in Carate →

Is your destination not in the list? Have a look at all destinations in the Osa Peninsula, in Costa Rica.

Popular cities in September

Day & night temperatures, rainfall and average weather in the Osa Peninsula in September.

City Weather Day temp Night temp Rainfall
Puerto Jiménez 29°C (84°F) 24°C (75°F) 492 mm (19 in)
Carate 29°C (84°F) 24°C (75°F) 552 mm (22 in)

The Osa Peninsula weather in September: frequently asked questions

What is the weather like in the Osa Peninsula, Costa Rica in September?

the Osa Peninsula, Costa Rica typically experiences poor weather in September, part of the season. Daytime highs in Puerto Jiménez average around 29°C (84°F), and temperatures drop to about 24°C (75°F) at night.

What is the average temperature in the Osa Peninsula, Costa Rica in September?

Puerto Jiménez averages a daytime maximum of 29°C (84°F) in September, with overnight lows close to 24°C (75°F).

Does the Osa Peninsula, Costa Rica get a lot of rain in September?

Expect plenty of rainfall. Puerto Jiménez records an average of 492 mm (19 in) in September, putting it among the wetter months for the Osa Peninsula, Costa Rica.

Is September a Good Time to Visit the Osa Peninsula, Costa Rica?

In our view, September might not be the best time to travel to the Osa Peninsula, Costa Rica with often poor weather in Puerto Jiménez.

Generally speaking, the best visiting conditions can be found in January and February offering mostly perfect weather in Puerto Jiménez. The weather in May, June, July, August, September, October and November, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in the Osa Peninsula.

Weather and climate has detailed information for every country in the world. Are you going to Costa Rica? Get detailed historical weather averages for many cities in Costa Rica.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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