Measurements:
°C
°F
CURRENT WEATHER
07:27
Yosemite
44°F
W 5 mph
Feels like: 40°F
Precip: 9%
World Resorts USA Yosemite Weather

7 Day Weather Forecast

09.15
tue
DAY
68°F
NE 12 mph
precip
9%
NIGHT
40°F
NW 6 mph
precip
1%
09.16
wed
DAY
64°F
NE 12 mph
precip
0%
NIGHT
36°F
NW 7 mph
precip
7%
09.17
thu
DAY
60°F
NE 11 mph
precip
0%
NIGHT
36°F
W 5 mph
precip
4%
09.18
fri
DAY
64°F
E 8 mph
precip
0%
NIGHT
44°F
W 8 mph
precip
1%
09.19
sat
DAY
70°F
E 9 mph
precip
0%
NIGHT
48°F
W 5 mph
precip
10%
09.20
sun
DAY
64°F
E 7 mph
precip
7%
NIGHT
50°F
W 6 mph
precip
9%
09.21
mon
DAY
68°F
E 5 mph
precip
2%
NIGHT
48°F
W 7 mph
precip
3%

Yosemite Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Yosemite was 18.8°F. The maximum and minimum values were 17.6°F and 20.7°F respectively.

Yosemite on the Weather Map

Best Time to Visit Yosemite
The most sunny months:
August 27 days
July 27 days
June 25 days
The most warm months:
July 75.8 °F
August 75.5 °F
September 67.6 °F
Warmest sea temperature:
August 69.7 °F
July 69.1 °F
September 65.4 °F
The most cold months:
February 34.4 °F
December 35.3 °F
January 35.5 °F
The most rainy months:
May 2 days
July 2 days
April 2 days
The most windy months:
June 7 mph
August 7 mph
July 6 mph
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