Brighton and Hove, United Kingdom
Irish Sea50.82°N, 0.14°WStation UN-BRI-BRI

Brighton Beach Sea Water Temperature

A temperate beach on the Irish Sea, warmest around September at about 17.4°C. Today's reading, 7-day forecast, and monthly averages below.

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

Brighton Beach water temperature

17.4
63.3°FCool / Refreshing (16°C – 20°C)

Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing.

+0°vs Sep avgIrish Sea50.82°N, 0.14°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
19°C
66°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
17.4°C
63.3°F
Waves: 1m
Refreshing
ThuOct 1
17.7°C
63.9°F
Waves: 0.9m
Refreshing
FriOct 2
17.8°C
64°F
Waves: 0.7m
Refreshing
SatOct 3
17.7°C
63.9°F
Waves: 0.6m
Refreshing
SunOct 4
17.4°C
63.3°F
Waves: 0.7m
Refreshing
MonOct 5
17.1°C
62.8°F
Waves: 0.9m
Refreshing
TueOct 6
17°C
62.6°F
Waves: 1m
Refreshing
Forecast cooling trend: -0.4°C over 7 days at Brighton Beach.
Confidence: High

Brighton Beach Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Brighton Beach occurs inJuly, August, September, October — peaking at17.4°C (63.3°F) in September.

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

Hover a bar for details
Current month Comfortable (20–24°C) Warm (24°C+) Cool (<20°C)
10
Jan
9
Feb
8
Mar
9
Apr
11
May
14
Jun
16
Jul
17
Aug
Current
17
Sep
16
Oct
14
Nov
12
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January8.4°C9.8°C11.9°CVery Cold (< 16°C)
February6.2°C8.7°C10°CVery Cold (< 16°C)
March6.3°C8.4°C9.8°CVery Cold (< 16°C)
April8°C9.3°C11.7°CVery Cold (< 16°C)
May9.6°C11.3°C14.1°CVery Cold (< 16°C)
June12.1°C13.5°C15.3°CVery Cold (< 16°C)
July14.2°C15.7°C18.5°CVery Cold (< 16°C)
August16.1°C17.3°C18.9°CCool / Refreshing (16°C – 20°C)
SeptemberCurrent16.2°C17.4°C18.8°CCool / Refreshing (16°C – 20°C)
October15°C16.3°C17.8°CCool / Refreshing (16°C – 20°C)
November11.3°C14.1°C16.2°CVery Cold (< 16°C)
December10.1°C11.7°C13.8°CVery Cold (< 16°C)

Swimming FAQs for Brighton Beach

Is the sea warm enough to swim in Brighton Beach today?

Typical sea surface temperature in Brighton Beach this time of year is 17.4°C (63.3°F) — classified as Cool / Refreshing (16°C – 20°C). Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing. Live readings load automatically.

What are the warmest months for swimming in Brighton Beach?

The highest water temperatures in Brighton Beach typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.

What is the typical water temperature in Brighton Beach in September?

Historically in September, water temperatures in Brighton Beach average around17.4°C (63.3°F), fluctuating between a recorded minimum of 16.2°C and a maximum of 18.8°C.

Other Beaches in United Kingdom

Explore all United Kingdom stations

Brighton Beach Coastal Zone Map

Live OpenStreetMap