Weather in Wanaka in April
New Zealand · 20-year averages, April
Shoulder season. April is shoulder season in Wanaka — cheaper, quieter, and a genuine gamble. Highs average 15.2 °C, lows 6.8 °C, and rain falls on 14 days — nothing in the month is working against you.
April ranks 6 of 12 in Wanaka: past the worst of the year but short of February, which is the month to book if the dates are open.
Rain on 14 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 15.2 °C days and 6.8 °C nights; the spread matters more here than any single number.
What the averages hide
The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest April day reached 22.7 °C and the coldest night fell to -1 °C, and the wettest single day dropped 47 mm — roughly 47% of the month's rain in one day.
April is moderately variable: 25 mm in the driest year against 235 mm in the wettest, around an average of 101 mm. Roughly two Aprils in three land near that average, and the third does something else entirely.
Wind is light at 7.8 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 86%, high enough to notice on the warm days without dominating them.
How April sits in the year
The month is on the way down: 3.7 °C cooler than March, with May dropping another 3.9 °C. The first week and the last are not the same trip.
Daylight in April
10.9 hours of daylight, losing 1.5 hours across the month. That is between Wanaka's extremes of 15.5 and 8.8 hours, so days are long enough not to constrain the plan.
Sea temperature
The sea sits at about 16 °C in April — cold — a quick dip rather than a swim, and a wetsuit if you are in for longer. The sea peaks at 17.1 °C in February and bottoms out at 12.6 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.
How busy it gets
Shoulder. The value months — prices ease off and you get the place closer to itself.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
April in Wanaka versus nearby
If Wanaka is one option among several, the nearby comparison is worth making. Queenstown is close enough to be a coin toss — within a degree on temperature, 2 days more rain. Te Anau is the weaker option in April — within a degree on temperature, 6 days more rain.
So: April is a compromise. February is 19 points better and is what Wanaka is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Wanaka
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|
| January | 20.7 | 10.2 | 15 | 134 | 77 | 15.2 | 16.4 | 70 |
| February | 20.8 | 10.4 | 12 | 101 | 78 | 13.9 | 17.1 | 77 |
| March | 18.9 | 9 | 14 | 104 | 82 | 12.5 | 16.8 | 70 |
| April | 15.2 | 6.8 | 14 | 101 | 86 | 10.9 | 16 | 58 |
| May | 11.3 | 4.7 | 17 | 124 | 92 | 9.6 | 14.9 | 39 |
| June | 8.1 | 2.4 | 15 | 115 | 94 | 8.8 | 13.7 | 32 |
| July | 7.4 | 1.7 | 15 | 105 | 94 | 9.1 | 13 | 31 |
| August | 9.4 | 2.9 | 17 | 101 | 91 | 10.2 | 12.6 | 35 |
| September | 12 | 3.8 | 17 | 121 | 86 | 11.7 | 12.6 | 42 |
| October | 14.1 | 4.9 | 17 | 123 | 83 | 13.3 | 12.8 | 48 |
| November | 16.8 | 6.9 | 16 | 117 | 80 | 14.7 | 13.7 | 59 |
| December | 19.2 | 9.2 | 16 | 136 | 78 | 15.5 | 15.2 | 66 |
See all twelve months in Wanaka, or where else to go in April.
Planning the rest of the trip
- Where to eat & stay in Wanaka every café, restaurant and hotel
- Flight time to Wanaka how long you are actually in the air
- Wanaka time zone and the difference from home
- Days until your trip count down to the departure date
- Gyms & clubs in Wanaka keep training while you are there