Measurements:
°C
°F
Heredia
60°F
W 4 mph
Feels like: 60°F
Precip: 0%
World Resorts Costa Rica Heredia Weather September Weather in Heredia

Heredia Weather: September

Average Day Temperature: 77.8°F
Average Night Temperature: 61.2°F
Sea Water Temperature: 87.4°F
Number of Sunny Days: 1 day
Sunshine Hours: 12.0 - 12.3 hours
Number of Rainy Days: 25 days
Precipitation Totals: 22.6 in

Air Temperature in September, °F

Select Year: 2025 2024 2023

The highest day temperature in September 2025 was 81°F. The lowest night temperature was 55°F. The average values for day and night temperatures during September were 75.0°F и 57.1°F respectivly.

Heredia Water Sea Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Heredia was 87.4°F. The maximum and minimum values were 86.8°F and 88.0°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in September are gloomy but you can also expect sunny days.

Precipitation Totals in September, in

Precipitation total in September for Heredia is 22.6 in. It makes september one of the most rainy months of the year.

Wind Speed in September, mph

The average wind speed in September is 2.5 mph. It makes September the most windless month of the year for Heredia.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Heredia in September is 4.7 hours.

Best Time to Visit Heredia
The most sunny months:
January 13 days
February 13 days
March 12 days
The most warm months:
March 83.4 °F
April 82.7 °F
February 81.9 °F
Warmest sea temperature:
April 89.4 °F
March 89.0 °F
May 88.9 °F
The most cold months:
November 76.2 °F
October 76.5 °F
July 77.8 °F
The most rainy months:
October 25 days
June 25 days
September 25 days
The most windy months:
February 6 mph
January 6 mph
March 5 mph

Heredia on the Weather Map

Costa Rica Resorts:
NAME
Alajuela +58
Cahuita +76
Heredia +60
Jaco +80
Limon +76
Playa Flamingo +80
Playas del Coco +80
Puerto Limon +76
Puerto Viejo de Talamanca +74
Quepos +76
Samara +78
San Jose +56
Santa Teresa +82
Tamarindo +80
Tortuguero +76
24 Hours Weather Forecast
Heredia
Local time: 22:04
06 dec, saturday
0000 58°F
W
4 mph
0300 56°F
W
4 mph
0600 56°F
W
4 mph
0900 72°F
E
2 mph
1200 80°F
E
3 mph
1500 70°F
E
2 mph
1800 64°F
S
2 mph
2100 60°F
SW
2 mph