Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in South Island is from January. — some variation climate
🌨Cold
| Score | 34 | 31 | 18 | 10 | 7 | 7 | 6 | 7 | 7 | 9 | 12 | 21 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Cold | Cold | Cold | Cold | Cold | Cold | Cold | Cold | Cold | Cold | Cold | Cold |
| Temperature | 8–15°C | 7–15°C | 7–13°C | 4–10°C | 2–8°C | 0–6°C | -1–5°C | -1–5°C | 0–7°C | 2–9°C | 4–11°C | 6–13°C |
| Feels like | 6–15°C | 6–14°C | 5–12°C | 1–9°C | -1–6°C | -3–3°C | -5–2°C | -4–3°C | -3–5°C | 0–7°C | 2–10°C | 5–13°C |
| Precipitation | 533mm 27 days | 579mm 22 days | 495mm 24 days | 525mm 22 days | 579mm 25 days | 383mm 20 days | 500mm 23 days | 507mm 26 days | 578mm 26 days | 569mm 30 days | 692mm 29 days | 609mm 28 days |
| Sunshine | 7.4h ☀︎ 49% | 7.4h ☀︎ 54% | 6.0h ☀︎ 49% | 5.3h ☀︎ 49% | 4.2h ☀︎ 43% | 4.5h ☀︎ 49% | 4.3h ☀︎ 46% | 4.5h ☀︎ 44% | 5.0h ☀︎ 43% | 5.1h ☀︎ 39% | 6.2h ☀︎ 42% | 6.5h ☀︎ 43% |
| Wind | NW · 12 km/h | N · 13 km/h | N · 12 km/h | N · 11 km/h | SE · 11 km/h | SE · 11 km/h | SE · 11 km/h | SE · 11 km/h | NW · 12 km/h | NW · 12 km/h | NW · 13 km/h | NW · 13 km/h |
| Humidity (%) | 85% | 85% | 86% | 88% | 88% | 84% | 87% | 88% | 86% | 87% | 86% | 86% |
| Day length | 14.9h | 13.8h | 12.4h | 10.9h | 9.7h | 9.1h | 9.4h | 10.4h | 11.8h | 13.3h | 14.6h | 15.3h |
New Zealand's longest-running wine celebration brings together the country's top winemakers and chefs in the heart of Ma…
This quirky one-day festival on the wild West Coast challenges visitors to sample unusual local delicacies like huhu gru…
Held in the small southern town of Bluff, this festival celebrates the arrival of the season's prized oysters with shuck…
There is no clever shortcut to outsmarting the South Island: the obvious midsummer months are the only time the island truly opens up, and braving the peak crowds of January and February is the necessary price of admission.
The South Island—Te Waipounamu—does not negotiate with travelers. Anchored by the spine of the Southern Alps and exposed to the howling swells of the Southern Ocean and Tasman Sea, this is an elemental, towering landmass where weather is an active participant in your plans rather than mere background scenery. Most travel wisdom whispers that you should slip in during the shoulder seasons to avoid campervan traffic across the Canterbury Plains or along the West Coast. That advice is a trap. For most of the year, the island is gripped by biting alpine chill and relentless, torrential downpours. If you want the soaring glacial valleys clear, the high passes passable, and days generous enough to actually explore, you go in the dead of summer.
January and February are as good as it gets, and the entire traveling world knows it. Roads wind thick with motorhomes between Christchurch and Queenstown, trailheads near Aoraki / Mount Cook fill by sunrise, and ferry crossings over Cook Strait require booking months ahead. Yet this is the singular stretch of the calendar where the South Island feels expansive rather than forbidding. The daylight stretches past nine in the evening, giving you over seven hours of bright sunshine to hike the high scree or gaze across turquoise glacial lakes.
Make no mistake: summer here is not tropical warmth. Daytime highs hover around a crisp, temperate realm, and when the skies open, rain falls in furious, plan-drenching sheets, particularly as storms slam into Fiordland and dump moisture against the mountains. But between those bursts come days of luminous, wind-washed clarity. In February, the Marlborough Wine & Food Festival captures the region at its golden best, filling the sun-drenched vineyards at the northern tip of the island with local wine and food when outdoor living is an effortless joy.
Come March, the atmosphere shifts with startling speed. The warmth of February drains from the soil, replaced by crisp mornings where your breath plumes in the mountain air. By April, high alpine trails begin to ice over, and daylight retreats sharply. Crowd numbers dwindle as casual tourists retreat, leaving the roads through the Kaikōura Ranges quiet and the stony shores of Dunedin peaceful, but the cost is paid in warmth.
Rain remains heavy, and when it falls in early autumn, it carries a cutting Antarctic bite. March still offers rich adventure on the wild West Coast, where the Hokitika Wildfoods Festival challenges the adventurous with foraged bush delicacies like huhu grubs amid eccentric, rain-or-shine revelry. Just come armed with heavy wool and waterproof shells; by April, afternoon highs struggle into the single digits, and the mountains are already preparing for winter.
Winter across Te Waipounamu is an austere, beautiful, and unforgiving affair. While domestic travelers surge back toward the ski fields, anyone hoping for gentle touring will encounter an island locked down by frost and early twilight. Apparent temperatures drop to hovering just above freezing, and the wind tearing up from Foveaux Strait makes coastal towns like Invercargill feel raw to the bone.
Yet winter has its own stubborn rites. In May, the Bluff Oyster and Food Festival draws determined seafood lovers to the very edge of the map to celebrate the seasonal harvest of prized cold-water oysters, shucked against a backdrop of brooding skies and blustery squalls. Beyond the ski fields, road passes across the Southern Alps are routinely threatened by ice and snow, rain falls in fierce cold deluges, and the landscape demands total respect. It is a time for firesides, wool blankets, and watching storms batter the coast from behind double glazing.
Spring on the South Island is not a gentle, blossoming thaw; it is the wettest, wildest quarter of the year. From September through November, the atmosphere over the Tasman Sea becomes volatile, hurling storm system after storm system into the western slopes. November is particularly sodden, battered by ferocious squalls and heavy downpours that can wash out mountain roads and turn tramping tracks into rushing waterways.
Temperatures slowly claw their way upward, but lingering meltwater and persistent cloud cover mean that Nelson and the Canterbury Plains only catch fleeting moments of spring ease. December begins to hint at summer's return as daylight lengthens toward the solstice, but the weather remains unpredictable and rain-lashed. If you travel now, do so with immense flexibility, watching the ridgelines from afar and waiting for the true summer to finally break.