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El Roble weather in September

Weather in El Roble: September

Average day temperature: 80.9°F
Average night temperature: 77.1°F
Sea water temperature: 84.1°F
Number of sunny days: 0 days
Day length: 12.0 - 12.3 hours
Number of rainy days: 11 days
Precipitation totals: 4.7 in.

Air temperature in September, °F

Show year:
2026
2025
2024

The highest day temperature during September of 2026 was 89°F. At the same time the lowest night temperature was 73°F. Daily and nightly averages during September were 85.8°F and 76.6°F.

Sea water temperature in El Roble in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 86.3°F. The highest and lowest sea temperatures during the month were 86.9°F and 85.8°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 El Roble in September is 4.7 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 3.9 mph It makes September one of the least windy months 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: 3.9.

Best time for vacation in El Roble

Sunniest months:
February 22 days
March 22 days
January 21 days
Warmest months:
April 85.2 °F
February 85.0 °F
March 84.4 °F
Warmest sea temp:
May 85.3 °F
April 84.8 °F
June 84.6 °F
Coldest months:
November 78.7 °F
October 79.6 °F
September 80.9 °F
Rainiest months:
June 15 days
August 14 days
October 14 days
Windiest months:
February 5.3 mph
April 5.2 mph
March 5.1 mph

El Roble on a weather map

El Roble
+77°F
S 3 mph
Feels like: +82°F
Precip.: 45%
Places in Costa Rica:
Name
°F
+66°F
+82°F
+61°F
+79°F
+81°F
+73°F
+61°F
+81°F
+77°F
+77°F
+77°F
+61°F
24 Hours Forecast
El Roble
Local time: 17:17
September 27, sunday
1800
77°F
S
3 mph
2100
77°F
S
3 mph
September 28, monday
0000
75°F
S
1 mph
0300
75°F
W
3 mph
0600
75°F
SW
4 mph
0900
82°F
N
4 mph
1200
86°F
N
7 mph
1500
82°F
N
5 mph
Units of measurement: °C / °F