Measurements:
°C
°F
Santa Teresa
86°F
N 4 mph
Feels like: 92°F
Precip: 19%
World Resorts Costa Rica Santa Teresa Weather

7 Day Weather Forecast

09.28
mon
DAY
84°F
N 3 mph
precip
6%
NIGHT
86°F
NW 2 mph
precip
21%
09.29
tue
DAY
86°F
N 6 mph
precip
9%
NIGHT
84°F
N 5 mph
precip
78%
09.30
wed
DAY
86°F
NE 4 mph
precip
13%
NIGHT
86°F
N 4 mph
precip
19%
10.01
thu
DAY
86°F
N 6 mph
precip
8%
NIGHT
86°F
SE 3 mph
precip
6%
10.02
fri
DAY
84°F
N 6 mph
precip
58%
NIGHT
84°F
S 3 mph
precip
20%
10.03
sat
DAY
84°F
NW 7 mph
precip
34%
NIGHT
84°F
SW 4 mph
precip
71%
10.04
sun
DAY
84°F
N 4 mph
precip
8%
NIGHT
82°F
W 9 mph
precip
80%

Santa Teresa Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Santa Teresa was 30.4°F. The maximum and minimum values were 30.0°F and 30.8°F respectively.

Santa Teresa on the Weather Map

Best Time to Visit Santa Teresa
The most sunny months:
February 23 days
March 21 days
January 20 days
The most warm months:
March 91.4 °F
February 91.3 °F
April 90.8 °F
Warmest sea temperature:
May 89.4 °F
April 89.0 °F
July 88.5 °F
The most cold months:
November 84.5 °F
October 84.9 °F
September 85.7 °F
The most rainy months:
August 14 days
June 14 days
October 13 days
The most windy months:
February 7 mph
March 6 mph
January 6 mph