Swimming in Dunedin in september 2025: Average sea temperature in september and tide times in september 2025
Average sea temperature in Dunedin in september 2025.
In september, according to seasonal norms, the sea temperature in Dunedin is:
Minimum: 47°F
Average: 49°F
Maximum: 51°F
Other useful seasonal weather averages in september:
- Outside temperature: 46°F to 52°F
- Most common weather: "Partly Cloudy"
- The wind blows at 3.1mph
- It rains a total of 1.7in, over 3 day(s).
Should we swim in Dunedin in september?
No... The water temperature in Dunedin in september is freezing
You won't be able to swim in Dunedin in september! The water temperature is freezing, reaching as low as 47°F (and only 51°F at best)! Our advice: if you are going to Dunedin this month, plan to sightsee and forget the beach!
Note also that in september, the climate is bad with an average outside temperature of 49°F, 1.7in of precipitation (over 3 days) and 79.26 % humidity.
Water and normal seasonal temperatures in Dunedin in september
| September | |||
| Average sea temperature | 49°F | ||
| Minimum sea temperature | 47°F | ||
| Maximum sea temperature | 51°F | ||
| Average outside temperature | 49°F | ||
| Maximum outside temperature | 52°F | ||
| Minimum outside temperature | 47°F | ||
| Wind speed | 17.4mph | ||
| Wind temperature | 41°F | ||
| Precipitation | 1.7in | ||
| Number of days of rain | 3 jour(s) (8%) | ||
| Humidity | 80% | ||
| Visibility in kilometers | 9.5km | ||
| Cloud cover | 43% | ||
| Our opinion | freezing swimming |
Chart of the tides in september 2025
Tide times in september 2025 in Dunedin
Swim elsewhere in New Zealand in september
| City | Average T° | Min. T° | Max. T° | Our opinion | Auckland in september | 60°F | 61°F | cold swimming | Christchurch in september | 51°F | 53°F | freezing swimming | Wellington in september | 56°F | 58°F | freezing swimming | Tauranga in september | 60°F | 62°F | cold swimming | Akaroa in september | 51°F | 53°F | freezing swimming | Cathedral Cove in september | 60°F | 62°F | cold swimming | Invercargill in september | 52°F | 54°F | freezing swimming | Napier in september | 57°F | 60°F | freezing swimming | Nelson in september | 56°F | 58°F | freezing swimming | Stewart Island in september | 52°F | 54°F | freezing swimming | Waiheke Island in september | 60°F | 62°F | cold swimming | Blenheim in september | 56°F | 58°F | freezing swimming | Greymouth in september | 55°F | 57°F | freezing swimming | New Plymouth in september | 58°F | 59°F | freezing swimming | Picton in september | 56°F | 58°F | freezing swimming | Timaru in september | 51°F | 53°F | freezing swimming |