Measurements:
°C
°F
Quepos
78°F
W 2 mph
Feels like: 84°F
Precip: 67%
World Resorts Costa Rica Quepos Weather

7 Day Weather Forecast

09.07
mon
DAY
86°F
N 4 mph
precip
26%
NIGHT
78°F
S 1 mph
precip
33%
09.08
tue
DAY
88°F
N 6 mph
precip
16%
NIGHT
80°F
SW 2 mph
precip
51%
09.09
wed
DAY
86°F
NE 7 mph
precip
54%
NIGHT
80°F
S 2 mph
precip
17%
09.10
thu
DAY
88°F
N 6 mph
precip
13%
NIGHT
80°F
SW 4 mph
precip
35%
09.11
fri
DAY
90°F
N 7 mph
precip
22%
NIGHT
80°F
SW 4 mph
precip
49%
09.12
sat
DAY
88°F
N 7 mph
precip
36%
NIGHT
78°F
SW 3 mph
precip
53%
09.13
sun
DAY
88°F
N 5 mph
precip
15%
NIGHT
78°F
W 3 mph
precip
78%

Quepos Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Quepos was 28.8°F. The maximum and minimum values were 28.5°F and 29.2°F respectively.

Quepos on the Weather Map

Best Time to Visit Quepos
The most sunny months:
February 8 days
March 8 days
January 5 days
The most warm months:
March 89.0 °F
April 88.8 °F
February 88.2 °F
Warmest sea temperature:
April 90.2 °F
March 89.9 °F
May 89.6 °F
The most cold months:
November 82.5 °F
October 83.8 °F
September 83.9 °F
The most rainy months:
August 21 days
September 21 days
October 21 days
The most windy months:
March 4 mph
February 4 mph
April 4 mph