Search Menu

Normal weather in Costa Rica in September

The weather in Costa Rica in September has an average temperature of around 27°C during the day. On average, September sees 284 mm of rain in Costa Rica. The wind speed is 4 Beaufort and mainly comes from South.

After August, September in Costa Rica starts with a temperature of 28°C and ends around October at 28°C.

The hurricane season in Costa Rica lasts from early June to late November.

September averages for Costa Rica

Temperature Average temperature
27°C
Sun Highest daytime temperature
28°C
Sun Lowest daytime temperature
26°C
Rain Total rainfall
284 mm
Rain Rainy days
21 days

Temperature per day in September in Costa Rica

This graph shows the average daily maximum temperatures in September in Costa Rica, indicated in degrees Celsius.

Temperature per day in September in Costa Rica

Precipitation per day in September in Costa Rica

This graph shows the average daily precipitation in September in Costa Rica, indicated in millimeters.

Precipitation per day in September in Costa Rica

UV index per day in September in Costa Rica

This graph shows the average daily UV index in September in Costa Rica.

UV index per day in September in Costa Rica

Yearly temperature in September in Costa Rica

This graph shows the average yearly temperature in September in Costa Rica, measured in degrees Celsius, over the past years.

Yearly temperature in September in Costa Rica

Yearly total precipitation in September in Costa Rica

This graph shows the average yearly precipitation in millimeters in September in Costa Rica, over the past years.

Precipitation per year in September in Costa Rica

Average daily weather in September

Click on a day to get more information about the average weather on that day.

weather
max/min
rain
wind
uv
rain
28° 19°
10,8 mm
Z 4
8
rain
27° 20°
11,9 mm
ZO 4
8
rain
28° 19°
2,0 mm
Z 4
8
rain
27° 20°
2,6 mm
ZO 4
7
rain
27° 20°
6,2 mm
O 4
7
rain
27° 19°
11,8 mm
Z 4
8
rain
27° 19°
5,6 mm
ZO 4
7
rain
27° 20°
10,0 mm
ZW 4
8
rain
27° 19°
10,9 mm
Z 4
7
rain
27° 19°
14,7 mm
ZO 4
7
rain
27° 19°
6,7 mm
ZO 4
7
rain
27° 18°
13,6 mm
Z 4
7
rain
28° 19°
8,1 mm
ZO 4
7
rain
27° 20°
5,9 mm
ZO 4
7
rain
27° 20°
6,5 mm
Z 4
8
rain
28° 20°
9,4 mm
ZO 4
8
rain
27° 19°
14,2 mm
ZO 4
7
rain
28° 19°
4,0 mm
Z 4
8
rain
28° 19°
6,2 mm
Z 4
8
rain
27° 19°
10,5 mm
Z 4
8
rain
27° 19°
10,7 mm
ZO 5
8
rain
27° 19°
9,1 mm
ZO 4
8
rain
27° 19°
12,8 mm
ZW 4
8
rain
27° 19°
10,8 mm
Z 4
7
rain
26° 19°
6,2 mm
Z 4
7
rain
27° 19°
9,1 mm
Z 4
7
rain
28° 19°
20,1 mm
ZO 4
8
rain
28° 19°
11,0 mm
ZO 4
7
rain
28° 19°
16,6 mm
Z 4
8
rain
28° 19°
6,1 mm
ZO 4
8

Experiences with the weather in September in Costa Rica

Write your own review

Have you ever been to Costa Rica in September?

Share your experiences with the weather in September in Costa Rica.

Your email will not be displayed in the review and will not be shared with third parties.

Average weather in Costa Rica by month

Click on a month below to see in detail how the weather typically is in Costa Rica and what to expect. Based on the historical weather data of Costa Rica, you can view the average temperature, precipitation, wind, and UV index for each day of the month.