Monkey Island Beach Water Temperature & Swim Forecast
Southland wild cove.
Cool water with a light chop and a light breeze — tough conditions for unprotected swimming.
Model estimate · modelled, not a buoy measurement. How accurate is this?
Location
Monkey Island Beach on the map, with nearby beaches and live sea temperatures.
7-day forecast
Water, air, waves, wind and UV outlook for the week ahead.
4/3mm fullsuit
At 13.3°C you need a 4/3mm fullsuit, and many surfers add neoprene boots.
- + Optional 3mm boots
Recommendation tuned for Monkey Island Beach's current water temperature. Individual tolerance, wind chill, and session length all matter — when in doubt, size up.
Monkey Island Beach swimming conditions summary
- Water temperature
- 13.3°C
- Water feels
- Bracing
- Swimmable today
- Only with thermal protection
- Swim conditions score
- 50/100 · Fair
- Wetsuit needed
- 4/3mm fullsuit
- Air temperature
- —
- Waves
- —
- Wind
- —
- UV index
- —
- Average sea temperature (September)
- 13.0 °C
- Warmest months to swim
- January, February, March
At 13.3°C you need a 4/3mm fullsuit, and many surfers add neoprene boots. Model estimate. Water, wave, wind and UV values are Open-Meteo marine/weather model estimates, refreshed hourly — not buoy measurements.
Frequently asked questions
Can I swim at Monkey Island Beach right now?
The sea at Monkey Island Beach is currently 13.3°C — cold swimming conditions. Most swimmers will find the water comfortable when it's above 22°C; below 18°C feels fresh and a wetsuit is recommended.
What will the sea temperature be at Monkey Island Beach next week?
Based on long-term September averages and the latest marine model, expect the sea around Monkey Island Beach to sit close to 13.7°C over the next 7 days. Check the live 7-day chart above for the exact daily outlook.
When is the best month to swim at Monkey Island Beach?
January – February – March are typically the warmest months to swim at Monkey Island Beach, with sea temperatures at their seasonal peak.
Do I need a wetsuit at Monkey Island Beach?
With water currently at 13.3°C: above 22°C no wetsuit needed; 18–22°C a shorty is comfortable for long swims; 14–18°C a 3/2mm full suit; below 14°C a 4/3mm or thicker.
Can I swim at Monkey Island Beach today?
The sea is currently 13.3°C — fair swimming conditions. Acclimatised swimmers will be most comfortable.
- • Located in Southland, New Zealand (Pacific Ocean).
- • Best suited to confident swimmers and watersports.
- • Live data refreshed hourly from Open-Meteo Marine.
Monthly sea temperature averages
Tap any month to see what to expect — based on regional climatology.
Best time to swim in Monkey Island Beach
The sea in Monkey Island Beach peaks in January, when the water averages around 18°C.
On average, 0 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
Outside peak season the water drops toward 12°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable.
The coldest month is typically July at around 12°C, when cold-water swimmers dominate the coast.
Monkey Island Beach sits in the Southern Hemisphere, so the warmest sea coincides with the December–February summer and the coolest with July–August.
Monkey Island Beach sea temperature history
Long-term climatology for Monkey Island Beach shows an annual mean sea temperature of 15°C, ranging from 12°C in winter to 18°C at the summer peak.
The seasonal swing is roughly 6°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.
Recent decades have trended slightly warmer at Monkey Island Beach, in line with regional sea-surface temperature records for the wider basin.
Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.
Monkey Island Beach sea temperature: frequently asked questions
What is the warmest month to swim in Monkey Island Beach?
January is the warmest month in Monkey Island Beach, when the sea averages about 18°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Monkey Island Beach?
The coldest month in Monkey Island Beach is typically July, when the water averages around 12°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Monkey Island Beach without a wetsuit?
The sea in Monkey Island Beach rarely climbs above 20°C, so a wetsuit is recommended year-round for anything longer than a quick dip.
Do I need a wetsuit in Monkey Island Beach?
Outside peak summer the water in Monkey Island Beach drops toward 12°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable. In peak months most swimmers go without.
What is the average sea temperature in Monkey Island Beach?
The long-term annual mean sea temperature in Monkey Island Beach is about 15°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Monkey Island Beach?
The live reading at the top of this page shows the current sea temperature in Monkey Island Beach, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.
Year-round sea temperature
| Month | Sea | Comfort |
|---|---|---|
| Jan ⭐ | 18°C | Pleasant |
| Feb | 18°C | Pleasant |
| Mar | 17°C | Bracing |
| Apr | 16°C | Bracing |
| May | 15°C | Bracing |
| Jun | 13°C | Cold |
| Jul | 12°C | Cold |
| Aug | 12°C | Cold |
| Sep | 13°C | Cold |
| Oct | 14°C | Bracing |
| Nov | 15°C | Bracing |
| Dec | 17°C | Bracing |
Nearby beaches
The closest coastline, with live water temperatures.