World Resorts Japan Yokohama Weather

Yokohama sea water temperature

Current sea water temperature:
+59.5°F
Minimum sea water temperature in April: 65.8°F
Maximum sea water temperature in April: 54.3°F
Average sea water temperature in April: 59.7°F

Sea water temperature for the last 10 days:

April 8 59.5°F April 3 60.6°F
April 7 60.8°F April 2 59.0°F
April 6 59.4°F April 1 59.5°F
April 5 58.3°F March 31 58.8°F
April 4 58.8°F March 30 57.7°F

When is the warmest sea in Yokohama?

Based on the data about daily sea water temperature for the last three years the warmest sea in Yokohama was noticed in August, September and July.

Monthly Sea Temperatures in Yokohama, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 82.8°F. The highest and lowest sea temperatures during the month were 85.1°F and 81.3°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 80.9°F. The highest and lowest sea temperatures during the month were 84.9°F and 75.7°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 80.8°F. The highest and lowest sea temperatures during the month were 84.2°F and 76.6°F.

Best time for vacation in Yokohama

Sunniest months:
January 16 days
December 16 days
July 14 days
Warmest months:
August 87.7 °F
July 84.4 °F
September 81.9 °F
Warmest sea temp:
August 81.2 °F
September 78.4 °F
July 77.5 °F
Coldest months:
January 48.8 °F
February 49.7 °F
December 53.6 °F
Rainiest months:
September 7 days
June 7 days
October 6 days
Windiest months:
April 12.4 mph
March 12.1 mph
February 11.6 mph

Yokohama on a weather map

Yokohama
+57°F
N 18 mph
Feels like: +52°F
Precip.: 0%
Places in Japan:
Name
°F
+52°F
+57°F
+57°F
+57°F
+57°F
+57°F
+59°F
+57°F
+66°F
+59°F
+43°F
+57°F
+59°F
+54°F
+50°F
24 Hours Forecast
Yokohama
Local time: 18:12
April 08, wednesday
2100
57°F
N
18 mph
April 09, thursday
0000
57°F
N
18 mph
0300
55°F
NE
14 mph
0600
55°F
NE
14 mph
0900
59°F
NE
19 mph
1200
63°F
N
25 mph
1500
63°F
N
27 mph
1800
61°F
NE
26 mph
Units of measurement: °C / °F