Ascension, Saint Helena
Coastal Waters7.99°S, 14.40°WStation SA-ASC-SHE

Shelly Beach Sea Water Temperature

A tropical beach on the Coastal Waters, warmest around April at about 28.1°C. Today's reading, 7-day forecast, and monthly averages below.

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

Shelly Beach water temperature

24.4
75.9°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 avgCoastal Waters7.99°S, 14.40°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
26°C
78.6°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
24.4°C
75.9°F
Waves: 1m
Warm
ThuOct 1
24.7°C
76.5°F
Waves: 0.9m
Warm
FriOct 2
24.8°C
76.6°F
Waves: 0.7m
Warm
SatOct 3
24.7°C
76.5°F
Waves: 0.6m
Warm
SunOct 4
24.4°C
75.9°F
Waves: 0.7m
Warm
MonOct 5
24.1°C
75.4°F
Waves: 0.9m
Warm
TueOct 6
24°C
75.2°F
Waves: 1m
Warm
Forecast cooling trend: -0.4°C over 7 days at Shelly Beach.
Confidence: High

Shelly Beach Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Shelly Beach occurs inJanuary, February, March, April, May, June, July, August, September, October, November, December — peaking at28.1°C (82.6°F) in April.

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

Hover a bar for details
Current month Comfortable (20–24°C) Warm (24°C+) Cool (<20°C)
26
Jan
27
Feb
28
Mar
28
Apr
28
May
27
Jun
26
Jul
25
Aug
Current
24
Sep
24
Oct
25
Nov
25
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January24.9°C26°C27.2°CWarm & Ideal (24°C – 28°C)
February26.3°C27.1°C28°CWarm & Ideal (24°C – 28°C)
March26.7°C27.9°C29°CWarm & Ideal (24°C – 28°C)
April27.3°C28.1°C29.5°CTropical Warm (> 28°C)
May26.8°C27.8°C28.8°CWarm & Ideal (24°C – 28°C)
June25.6°C26.9°C27.9°CWarm & Ideal (24°C – 28°C)
July24.7°C25.9°C27.4°CWarm & Ideal (24°C – 28°C)
August23.2°C24.8°C26.2°CWarm & Ideal (24°C – 28°C)
SeptemberCurrent23.8°C24.4°C25.4°CWarm & Ideal (24°C – 28°C)
October23.8°C24.4°C25.8°CWarm & Ideal (24°C – 28°C)
November23.9°C24.7°C26.1°CWarm & Ideal (24°C – 28°C)
December24.3°C25.3°C26.4°CWarm & Ideal (24°C – 28°C)

Swimming FAQs for Shelly Beach

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

Typical sea surface temperature in Shelly Beach this time of year is 24.4°C (75.9°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 Shelly Beach?

The highest water temperatures in Shelly Beach typically occur duringJanuary, February, March, April, May, June, July, August, September, October, November, December, when monthly averages reach peak seasonal levels.

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

Historically in September, water temperatures in Shelly Beach average around24.4°C (75.9°F), fluctuating between a recorded minimum of 23.8°C and a maximum of 25.4°C.

Other Beaches in Saint Helena

Explore all Saint Helena stations

Shelly Beach Coastal Zone Map

Live OpenStreetMap