Chatham Islands Territory, New Zealand
Coastal Waters43.89°S, 176.34°WStation NE-CHA-MAT

Matawhenua Sea Water Temperature

A temperate beach on the Coastal Waters, warmest around February at about 15.5°C. Today's reading, 7-day forecast, and monthly averages below.

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

Matawhenua water temperature

11.2
52.2°FVery Cold (< 16°C)

Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.

+0°vs Sep avgCoastal Waters43.89°S, 176.34°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
13°C
54.9°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
11.2°C
52.2°F
Waves: 1m
Very Cold
ThuOct 1
11.5°C
52.7°F
Waves: 0.9m
Very Cold
FriOct 2
11.6°C
52.9°F
Waves: 0.7m
Very Cold
SatOct 3
11.5°C
52.7°F
Waves: 0.6m
Very Cold
SunOct 4
11.2°C
52.2°F
Waves: 0.7m
Very Cold
MonOct 5
10.9°C
51.6°F
Waves: 0.9m
Very Cold
TueOct 6
10.8°C
51.4°F
Waves: 1m
Very Cold
Forecast cooling trend: -0.4°C over 7 days at Matawhenua.
Confidence: High

Matawhenua Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Matawhenua occurs inJanuary, February, March, April — peaking at15.5°C (59.9°F) in February.

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

Hover a bar for details
Current month Comfortable (20–24°C) Warm (24°C+) Cool (<20°C)
15
Jan
16
Feb
15
Mar
15
Apr
14
May
13
Jun
12
Jul
11
Aug
Current
11
Sep
12
Oct
12
Nov
14
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January12.3°C14.7°C17.5°CVery Cold (< 16°C)
February13.3°C15.5°C17.4°CVery Cold (< 16°C)
March13.2°C15.4°C16.9°CVery Cold (< 16°C)
April13.9°C14.8°C15.8°CVery Cold (< 16°C)
May12.9°C13.8°C15.4°CVery Cold (< 16°C)
June11.4°C12.7°C14.5°CVery Cold (< 16°C)
July11.1°C12°C13.5°CVery Cold (< 16°C)
August10.1°C11.3°C12.6°CVery Cold (< 16°C)
SeptemberCurrent9.9°C11.2°C12.4°CVery Cold (< 16°C)
October10.3°C11.5°C13°CVery Cold (< 16°C)
November10.9°C12.4°C14°CVery Cold (< 16°C)
December12.3°C13.8°C15.5°CVery Cold (< 16°C)

Swimming FAQs for Matawhenua

Is the sea warm enough to swim in Matawhenua today?

Typical sea surface temperature in Matawhenua this time of year is 11.2°C (52.2°F) — classified as Very Cold (< 16°C). Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges. Live readings load automatically.

What are the warmest months for swimming in Matawhenua?

The highest water temperatures in Matawhenua typically occur duringJanuary, February, March, April, when monthly averages reach peak seasonal levels.

What is the typical water temperature in Matawhenua in September?

Historically in September, water temperatures in Matawhenua average around11.2°C (52.2°F), fluctuating between a recorded minimum of 9.9°C and a maximum of 12.4°C.

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Matawhenua Coastal Zone Map

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