Tokyo, Japan
Uchi Sea34.70°N, 139.37°EStation JA-TOK-BEA

第二砂の浜 Sea Water Temperature

A mild beach on the Uchi Sea, warmest around August at about 26.8°C. Today's reading, 7-day forecast, and monthly averages below.

Live readings · auto-updating
Water Temperature NowBuoy & Sentinel-3 SST

第二砂の浜 water temperature

26.2
79.2°FWarm & Ideal (24°C – 28°C)

Ideal swimming conditions. Feels soothing and warm, perfect for hours in the water without getting cold.

+0°vs Sep avgUchi Sea34.70°N, 139.37°E
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
28°C
81.9°F onshore
Wind Speed
12 km/h
Surface wind
Wave Height
0.8 m
Slight shore chop
Swell
0.6 m
Deep water swell
Wave Period
6 s
Peak interval
UV Index
—
Daily maximum
Sunrise
—
First morning light
Sunset
—
Golden hour close

7-Day Water Temperature Forecast

Open-Meteo ocean model
Today
WedSep 30
26.2°C
79.2°F
Waves: 1m
Warm
ThuOct 1
26.5°C
79.7°F
Waves: 0.9m
Warm
FriOct 2
26.6°C
79.9°F
Waves: 0.7m
Warm
SatOct 3
26.5°C
79.7°F
Waves: 0.6m
Warm
SunOct 4
26.2°C
79.2°F
Waves: 0.7m
Warm
MonOct 5
25.9°C
78.6°F
Waves: 0.9m
Warm
TueOct 6
25.8°C
78.4°F
Waves: 1m
Warm
Forecast cooling trend: -0.4°C over 7 days at 第二砂の浜.
Confidence: High

第二砂の浜 Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in 第二砂の浜 occurs inJuly, August, September, October — peaking at26.8°C (80.2°F) in August.

Year-Round Water Temperature Curve (°C / °F)

Hover a bar for details
Current month Comfortable (20–24°C) Warm (24°C+) Cool (<20°C)
18
Jan
17
Feb
17
Mar
18
Apr
20
May
22
Jun
25
Jul
27
Aug
Current
26
Sep
24
Oct
22
Nov
20
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January15.3°C17.6°C20.1°CCool / Refreshing (16°C – 20°C)
February14.2°C16.7°C19.2°CCool / Refreshing (16°C – 20°C)
March14.1°C16.9°C19.5°CCool / Refreshing (16°C – 20°C)
April15.6°C17.9°C20.6°CCool / Refreshing (16°C – 20°C)
May15.8°C19.6°C21.8°CCool / Refreshing (16°C – 20°C)
June19.9°C22°C24.1°CComfortable (20°C – 24°C)
July22°C24.5°C27.8°CWarm & Ideal (24°C – 28°C)
August24.4°C26.8°C28.8°CWarm & Ideal (24°C – 28°C)
SeptemberCurrent23.6°C26.2°C28.5°CWarm & Ideal (24°C – 28°C)
October22°C24.2°C27.3°CWarm & Ideal (24°C – 28°C)
November18.1°C21.6°C25°CComfortable (20°C – 24°C)
December17.2°C19.8°C22.6°CCool / Refreshing (16°C – 20°C)

Swimming FAQs for 第二砂の浜

Is the sea warm enough to swim in 第二砂の浜 today?

Typical sea surface temperature in 第二砂の浜 this time of year is 26.2°C (79.2°F) — classified as Warm & Ideal (24°C – 28°C). Ideal swimming conditions. Feels soothing and warm, perfect for hours in the water without getting cold. Live readings load automatically.

What are the warmest months for swimming in 第二砂の浜?

The highest water temperatures in 第二砂の浜 typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.

What is the typical water temperature in 第二砂の浜 in September?

Historically in September, water temperatures in 第二砂の浜 average around26.2°C (79.2°F), fluctuating between a recorded minimum of 23.6°C and a maximum of 28.5°C.

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第二砂の浜 Coastal Zone Map

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