South Island Klima and Average Vær
Klima of South Island: average temperatures, rainfall and seasons month by month.
Klima in South Island month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Måned | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januar | 18° | 9° | 115 mm | ★★★★☆ |
| februar | 19° | 9° | 55 mm | ★★★★☆ |
| mars | 17° | 7° | 70 mm | ★★★★☆ |
| april | 13° | 5° | 157 mm | ★★★☆☆ |
| mai | 9° | 2° | 97 mm | ★★★☆☆ |
| juni | 6° | 0° | 129 mm | ★★☆☆☆ |
| juli | 5° | -2° | 131 mm | ★★☆☆☆ |
| august | 7° | -2° | 58 mm | ★★☆☆☆ |
| september | 9° | 1° | 228 mm | ★☆☆☆☆ |
| oktober | 11° | 2° | 254 mm | ★★☆☆☆ |
| november | 15° | 5° | 91 mm | ★★★☆☆ |
| desember | 17° | 8° | 127 mm | ★★★★☆ |
Klima type: Subarctic. Kilde: Open-Meteo archive (ERA5).
Recent extremes in South Island
Høyest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How South Island compares med nearby places
Annual averages, and the difference against South Island.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Aoraki / Mount Cook | 49 km | -11°C | 19°C cooler | 4894 mm |
| Wanaka | 137 km | 11°C | +3°C warmer | 1535 mm |
| West Coast | 177 km | 12°C | +5°C warmer | 2967 mm |
| Canterbury | 178 km | 12°C | +5°C warmer | 686 mm |
| Christchurch | 178 km | 12°C | +5°C warmer | 686 mm |
Beste tid å besøke South Island
Go in februar. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: juli, september and oktober - expect the least comfortable mix of heat, cold or rain.
What this means for South Island
Today is warmer than average for august. The forecast high of 13°C is 6.1°C above the 7°C typical for this month.
A 98% chance means rain is expected over most of the area. Plan indoor alternatives.
Wet roads are likely; braking distances roughly double in heavy rain.
Southern Hemisphere, so peak summer falls in desember til februar.
The gap between the warmest and coldest month averages 12°C.
What til pack, what til skip
- A warm mid-layer and gloves for early mornings and evenings
- A packable rain shell - 5 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid juli, september and oktober - historically the least comfortable months here.
Sammendrag
South Island is an island in New Zealand. South Island is an island known for Southern Alps, fiords and glaciers.
Akkurat nå er det 8°C (46°F) in South Island med delvis skyet. Det føles som 4°C. I dag varierer temperaturen mellom 7°C til 13°C. Sannsynligheten for nedbør er 98%. Sightseeing conditions score 5.6/10 - greit — planlegg etter været.
Beste tidspunkt å besøke South Island is februar. Klimaet er subarctic. juli, september and oktober tend til be the least comfortable months. februar is the warmest month med average highs near 19°C, while august is the coldest med lows near -2°C.
The closest major airport is Queenstown Airport (ZQN), about 183 km away. Nearby highlights include Aoraki / Mount Cook, Lake Wakatipu, Te Wahipounamu - South West New Zealand and Milford Sound.
Kort sagt. Today is warmer than average for august. The forecast high of 13°C is 6.1°C above the 7°C typical for this month. The best window til be outside is roughly 7 AM til 10 AM, when temperature, rain chance and wind line up best. fishing is the strongest bet in South Island today at 8.9/10. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about South Island
| Type | Island |
|---|---|
| Land | New Zealand |
| Kontinent | Oseania |
| Koordinater | 43°57′12.6″S 170°30′0″E (-43.9535, 170.5) |
| Known for | Southern Alps, fiords and glaciers |
| Lokal tid | 8:35 PM (UTC+12:00) |
| Best months | februar |
| Klima | Subarctic |
Vær map for South Island
Animated model layers. Pick a layer til load it.
Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Explore South Island
Every topic we hold for this place, and the same topic for the places around it.
Klima for related places
Frequently asked questions
Where is South Island?
South Island is an island in New Zealand. Its coordinates are -43.9535, 170.5. It lies in Oseania.
What is the weather like in South Island akkurat nå?
It is currently 8°C (46°F) med delvis skyet. Luftfuktighet is 72% and wind is 18 km/h.
When is the best time til visit South Island?
februar offer the most comfortable conditions in South Island, which has a subarctic climate. juli, september and oktober are usually the hardest months for outdoor plans.
What time zone is South Island in?
South Island observes Pacific/Auckland (UTC+12:00). The local time is 8:35 PM.
What is the nearest airport til South Island?
The closest airports are Queenstown Airport (ZQN), 183 km away.
What are the top things til do in South Island?
Popular options include Aoraki / Mount Cook, Lake Wakatipu, Te Wahipounamu - South West New Zealand, Milford Sound and Fiordland National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts. |
|---|---|
| Værmelding and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated august 25, 2026 at 8:35 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
