
Lake · New Zealand
Lake Wairarapa
Lake in Wellington Region, New Zealand
- Area
- 70.0km²
- Max depth
- 2m
- Average depth
- 3.4m
- Elevation
- 0m a.s.l.
- Shoreline
- 57km
- Volume
- 0.241km³
Lake Wairarapa is a lake in New Zealand. It covers 70.0 km². On average it is 3.4 m deep, and 2 m at its deepest point. Its surface lies 0 m above sea level.
Plan your visit
Stay, sail and get there
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
The water
How warm is Lake Wairarapa?
The water is warmest in January, around 19 °C at the surface, and coldest in July, around 8 °C. It rarely averages 20 °C, but it stays above 17 °C from December to February: brisk, refreshing swimming.
It does not normally freeze in winter.
On the shore, afternoons reach 20 °C on average in February and 11 °C in July. The driest month is January (53 mm of rain), the wettest June (96 mm).
Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (124 readings). Shallow bays and beaches are often warmer.
From above
The whole lake from space
Month by month
The year at the lake, month by month
Not a forecast: these are averages over many years. Water is the 2013–2021 average; air, rain, sun and wind are the 1991–2020 average.
Water: 2013–2021 averageClimate: 1991–2020 average
| Month | Water°C | Water high°C | Air high°C | Air low°C | Rainmm | Rainy daysdays | Sunh/day | Windkm/h |
|---|---|---|---|---|---|---|---|---|
| January | 19 | 20 | 19 | 14 | 53 | 9 | 8.5 | 24 |
| February | 19 | 19 | 20 | 14 | 59 | 7 | 7.8 | 23 |
| March | 17 | 18 | 18 | 13 | 60 | 9 | 6.9 | 22 |
| April | 14 | 15 | 16 | 11 | 74 | 11 | 5.5 | 21 |
| May | 11 | 12 | 14 | 10 | 86 | 12 | 4.3 | 23 |
| June | 9 | 9 | 12 | 8 | 96 | 14 | 3.4 | 23 |
| July | 8 | 9 | 11 | 7 | 92 | 14 | 3.9 | 23 |
| August | 9 | 10 | 11 | 7 | 87 | 14 | 4.8 | 23 |
| September | 11 | 12 | 12 | 8 | 76 | 12 | 5.6 | 26 |
| October | 13 | 15 | 14 | 9 | 85 | 13 | 6.3 | 25 |
| November | 16 | 17 | 15 | 10 | 66 | 11 | 7.6 | 25 |
| December | 18 | 19 | 17 | 12 | 76 | 12 | 7.6 | 24 |
Water: LakeTEMP (Landsat 8, 2013–2021). Air, rain, sun and wind: NASA POWER, 1991–2020 averages. A rainy day has at least 1 mm of rain. Sunshine hours are derived from measured solar radiation.
Size & depth
How big, how deep
- On average, water stays in the lake for about 5 months before flowing out.
- Its catchment drains 574 km² of land.
- About 18 m³ of water flow out every second, on average.
Around the shore
What's around Lake Wairarapa
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- —beaches and swimming spots
- 1campsites
Lake Domain Reserve
- —boat hire and water-sport clubs
- 1marinas and slipways
- —ferry piers
- —viewpoints
- —hotels, B&Bs and chalets
- —fishing spots
- —restaurants and cafés
Nearest airport with scheduled flights: Wellington International Airport (WLG), 38 km in a straight line.
Car hire at WLG airport (Wellington)Discover Cars · Affiliate linkOpenStreetMap is built by volunteers: when a number is low, it may just mean nobody has mapped it yet.
Photos
Seen by visitors


Recent years
How each month compared
Afternoon high on the shore. The first row is the reference, the 1991–2020 average in °C; the years below show the difference from it: warmer in orange, cooler in blue.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1991–2020 average | 19.2 | 19.6 | 18.3 | 15.8 | 13.7 | 11.6 | 10.6 | 11.1 | 12.3 | 13.5 | 15.2 | 17.4 |
| 2020 | −0.4 | +0.7 | −0.5 | +0.1 | ±0.0 | +0.7 | +0.3 | +0.7 | +0.1 | +0.8 | −0.1 | −0.8 |
| 2021 | −0.4 | −0.1 | −0.2 | +0.5 | +0.3 | +1.1 | +0.5 | +0.2 | −0.2 | +0.6 | +0.9 | +1.0 |
| 2022 | +0.8 | −0.7 | −0.5 | +0.6 | +1.3 | +0.9 | +0.9 | +0.7 | −0.1 | −0.3 | +1.5 | +0.8 |
| 2023 | ±0.0 | −0.8 | −0.8 | +0.6 | +1.4 | +0.9 | +0.8 | −0.8 | +0.7 | +0.6 | −0.2 | +0.3 |
| 2024 | +1.1 | −0.6 | −1.2 | +0.3 | −1.1 | +0.6 | +0.3 | +0.5 | +0.3 | +0.6 | +0.4 | +0.3 |
| 2025 | −1.4 | +1.4 | +0.1 | +1.3 | +0.5 | +0.6 | +0.9 | −0.3 | +0.6 | +0.9 | +1.6 | +0.2 |
+1 warmer than usual −1 cooler than usual
About these numbers
| Outline, area, depth, volume | HydroLAKES v1.0 (Messager et al. 2016) · CC BY 4.0 |
|---|---|
| Water temperature and ice | LakeTEMP v1 (Korver et al. 2024), Landsat 8 2013–2021 · CC BY 4.0 |
| Air, rain, sun, wind | NASA POWER, 1991–2020 · public domain |
| Names and description | Wikidata (Q590903) · CC0 |
| Around the shore | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average or a count from a public dataset. Licences and methods: data sources.