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Tortuguero weather in September

Weather in Tortuguero: September

Average day temperature: 84.0°F
Average night temperature: 74.8°F
Sea water temperature: 85.0°F
Number of sunny days: 2 days
Day length: 12.0 - 12.3 hours
Number of rainy days: 8 days
Precipitation totals: 3.3 in.

Air temperature in September, °F

Show year:
2025
2024
2023

The highest day temperature during September of 2025 was 87°F. At the same time the lowest night temperature was 72°F. Daily and nightly averages during September were 83.8°F and 74.3°F.

Sea water temperature in Tortuguero in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 84.4°F. The highest and lowest sea temperatures during the month were 85.6°F and 83.7°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Tortuguero in September is 3.3 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 3.6 mph It makes September lest windy month of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 4.9.

Best time for vacation in Tortuguero

Sunniest months:
April 4 days
May 2 days
March 2 days
Warmest months:
May 84.1 °F
September 84.0 °F
April 83.5 °F
Warmest sea temp:
September 85.0 °F
October 84.8 °F
May 84.5 °F
Coldest months:
December 80.8 °F
November 80.9 °F
January 81.1 °F
Rainiest months:
July 16 days
June 15 days
August 13 days
Windiest months:
February 4.9 mph
March 4.9 mph
April 4.4 mph

Tortuguero on a weather map

Tortuguero
+73°F
NE 2 mph
Feels like: +77°F
Precip.: 83%
Places in Costa Rica:
Name
°F
+57°F
+77°F
+73°F
+72°F
+73°F
+73°F
+75°F
+54°F
+79°F
+75°F
+73°F
+57°F
24 Hours Forecast
Tortuguero
Local time: 22:54
December 05, friday
0000
73°F
NE
2 mph
0300
72°F
E
2 mph
0600
72°F
E
2 mph
0900
81°F
S
1 mph
1200
82°F
SW
6 mph
1500
82°F
SW
6 mph
1800
75°F
SW
2 mph
2100
73°F
NE
2 mph
Units of measurement: °C / °F