Cold water. Now in the Tasman Sea +15°. Swimming season — from January to December.
Water temperature map of the Tasman Sea
ColderWarmer
Water temperature in the Tasman Sea by city today 📍
+14°
Wellington
+14°
Oklend
+14°
Vellington
+20°
Novra
+17°
Merimbula
+11°
Timaru
+13°
Gisborne
+13°
Greymut
+11°
Oamaru
+11°
Mosgil
+13°
Khoera
+18°
Wollongong
| City | Now | Swimming |
|---|---|---|
| Wellington | +14° | Cold water |
| Oklend | +14° | Cold water |
| Vellington | +14° | Cold water |
| Novra | +20° | Comfortable for swimming |
| Merimbula | +17° | Cool for swimming |
| Timaru | +11° | Cold water |
| Gisborne | +13° | Cold water |
| Greymut | +13° | Cold water |
| Oamaru | +11° | Cold water |
| Mosgil | +11° | Cold water |
| Khoera | +13° | Cold water |
| Wollongong | +18° | Cool for swimming |
| Sydney | +18° | Cool for swimming |
| Newcastle | +19° | Comfortable for swimming |
| Port Makuori | +21° | Comfortable for swimming |
| Koffs-Kharbor | +21° | Comfortable for swimming |
| Uonganui | +13° | Cold water |
| Bairnsdale | +14° | Cold water |
| Batemans | +18° | Cool for swimming |
| Burnie | +13° | Cold water |
| Taradeyl | +13° | Cold water |
| Kheyvlok-Nort | +13° | Cold water |
| Lover Khatt | +14° | Cold water |
| Porirua | +14° | Cold water |
| Upper Hutt | +14° | Cold water |
| Paraparaumu | +13° | Cold water |
| Raymond-Terras | +19° | Comfortable for swimming |
| Ueykana | +13° | Cold water |
| Hastings | +13° | Cold water |
| Auckland | +15° | Cold water |
| Tauranga | +15° | Cool for swimming |
| Oreva | +15° | Cold water |
| Blenheim | +13° | Cold water |
| New Plymouth | +14° | Cold water |
| Napier | +13° | Cold water |
| Nelson | +13° | Cold water |
| Maunt-Kuk | +14° | Cold water |
| Richmond | +13° | Cold water |
| Dunedin | +10° | Cold water |
| Forster | +20° | Comfortable for swimming |
🎣 Fishing in cities on the Tasman Sea
Water temperature forecast in the Tasman Sea 📅
Sunday
13 September
+16°
Monday
14 September
+16°
Tuesday
15 September
+16°
Wednesday
16 September
+15°
Thursday
17 September
+15°
Friday
18 September
+15°
Saturday
19 September
+15°
Computed by a climate model. Water changes slowly — no sharp shifts.
Water temperature in the Tasman Sea this weekend
Saturday, 19 September · water +15° · cold water
Sunday, 20 September · water +15° · cold water
Water temperature in the Tasman Sea for a month
There is no exact monthly water forecast — it changes slowly. The reference is the climate normal: up to +17° in summer. The monthly normal is below.
Monthly water temperature in the Tasman Sea 🗓️
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| +27 | +27 | +27 | +21 | +17 | +17 | +15 | +12 | +16 | +21 | +23 | +25 |
Climate normal (model estimate).
Swimming conditions in the Tasman Sea by month
Jan+27°Swimming season — comfortable.
Feb+27°Swimming season — comfortable.
Mar+27°Swimming season — comfortable.
Apr+21°Swimming season — comfortable.
May+17°Swimming season — comfortable.
Jun+17°Swimming season — comfortable.
Jul+15°Cool for swimming.
Aug+12°Cold, only for the hardy.
Sep+16°Cool for swimming.
Oct+21°Swimming season — comfortable.
Nov+23°Swimming season — comfortable.
Dec+25°Swimming season — comfortable.
When to swim in the Tasman Sea 🏖️
🏖️
Comfortable to swim in from January to December, when the water warms to +17° and above.
Cities on the Tasman Sea 📍
WellingtonOklendVellingtonNovraMerimbulaTimaruGisborneGreymutOamaruMosgilKhoeraWollongongSydneyNewcastlePort MakuoriKoffs-KharborUonganuiBairnsdaleBatemansBurnieTaradeylKheyvlok-NortLover KhattPoriruaUpper HuttParaparaumuRaymond-TerrasUeykanaHastingsAucklandTaurangaOrevaBlenheimNew PlymouthNapierNelsonMaunt-KukRichmondDunedinForster
FAQ about water in the Tasman Sea ❓
What is the water temperature in the Tasman Sea now?
Now +15° — Cold water.
Can you swim in the Tasman Sea?
Comfortable season — from January to December.
When is water warmest in the Tasman Sea?
Warmest in February — up to +27°.
Where does the water temperature data come from?
A water temperature model (by latitude, longitude and day of year) and SST measurements, by cities.
Water temperature archive in the Tasman Sea on this day
| City | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|---|---|---|
| Wellington | +15° | +17° | +17° | +14° | +12° | +12° | +14° | +17° | +17° | +15° |
| Oklend | +16° | +19° | +19° | +16° | +14° | +14° | +16° | +19° | +19° | +17° |
| Vellington | +14° | +16° | +16° | +14° | +12° | +11° | +13° | +16° | +16° | +15° |
| Novra | +19° | +21° | +21° | +19° | +17° | +16° | +18° | +21° | +21° | +20° |
| Merimbula | +17° | +19° | +19° | +16° | +14° | +14° | +16° | +19° | +19° | +17° |
Climate normal (model estimate for this date), not a measurement archive.
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Water temperature in the Tasman Sea — in detail
Water temperature in the Tasman Sea is tracked across 228 cities. The water is now about +15°. The page has a temperature map by city, a daily forecast and a monthly climate normal.