Weather in Wellington - 14-day forecast

Detailed weather forecast for Wellington, New Zealand: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in Wellington

today☁️ 14°💧 0.6 mm

Sun🌧️ 15°💧 7.1 mm

Mon🌧️ 7°💧 50.6 mm

Tue🌤️ 12°💧 0.6 mm

Wed🌧️ 12°💧 0.1 mm

Thu🌧️ 11°💧 1.1 mm

Fri🌧️ 12°💧 2.7 mm

Sat🌧️ 11°💧 0.7 mm

Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Monday 7 Sept in Wellington, the forecast high is 7°C. Typical daytime temperatures at this time of year range from 11°C to 14°C, so it will be exceptionally cool. It is cooler than 99% of similar days.

Saturday 5 Sept

14°Cexceptionally warm

usually 10°C–13°C

warmer than 95% of similar days

night: exceptionally warm rain: typical rainfall wind: stronger than usual

Sunday 6 Sept

15°Cexceptionally warm

usually 10°C–13°C

warmer than 97% of similar days

night: exceptionally warm rain: exceptionally wet wind: exceptionally strong

Monday 7 Sept

7°Cexceptionally cool

usually 11°C–14°C

cooler than 99% of similar days

night: cooler than usual rain: exceptionally wet wind: typical

Tuesday 8 Sept

12°Cnear normal

usually 11°C–14°C

night: near normal rain: typical rainfall wind: exceptionally light

Wednesday 9 Sept

12°Cnear normal

usually 11°C–14°C

night: exceptionally warm rain: typical rainfall wind: stronger than usual

Thursday 10 Sept

11°Ccooler than usual

usually 11°C–14°C

cooler than 78% of similar days

night: exceptionally warm rain: typical rainfall wind: stronger than usual

Friday 11 Sept

12°Ccooler than usual

usually 11°C–14°C

cooler than 72% of similar days

night: cooler than usual rain: more rain than usual wind: typical

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 12°C by day. The coolest year was 2018 (10°C) and the warmest was 2023 (15°C). The current forecast averages 12°C - lower than in 62% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - Wellington

Wellington - 14-day weather forecast infographic

Wellington 30 & 45-day weather - long-range outlook

Next 16 days · forecast

13°

around 12° at night · days with rain: 9

Weeks 3-4 · avg for September

14°

around 9° at night · rain chance 65%

Weeks 5-7 · avg for October

16°

around 10° at night · rain chance 47%

The 30 & 45-day outlook for Wellington: the next 16 days are a numerical forecast updated daily - on average 13° by day and 12° at night. Further out we rely on multi-year climate averages: around 14° in September, and about 16° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Wellington

Saturday5 September 2026

☁️14°broken clouds

sunrise 06:41 · sunset 18:00 · night 14° · evening 15° · rain 0.63 mm · humidity 70% · wind 13 m/s · clouds 81%

Sunday6 September 2026

🌧️15°heavy rain

sunrise 06:39 · sunset 18:01 · night 16° · evening 16° · rain 7.1 mm · humidity 84% · wind 14 m/s · clouds 100%

Monday7 September 2026

🌧️7°heavy rain

sunrise 06:37 · sunset 18:02 · night 8° · evening 8° · rain 50.63 mm · humidity 92% · wind 11 m/s · clouds 100%

Tuesday8 September 2026

🌤️12°scattered clouds

sunrise 06:36 · sunset 18:03 · night 9° · evening 10° · rain 0.58 mm · humidity 61% · wind 4 m/s · clouds 25%

Wednesday9 September 2026

🌧️12°light rain

sunrise 06:34 · sunset 18:04 · night 11° · evening 11° · rain 0.11 mm · humidity 76% · wind 12 m/s · clouds 72%

Thursday10 September 2026

🌧️11°light rain

sunrise 06:32 · sunset 18:05 · night 11° · evening 12° · rain 1.08 mm · humidity 80% · wind 13 m/s · clouds 100%

Friday11 September 2026

🌧️12°light rain

sunrise 06:31 · sunset 18:06 · night 7° · evening 12° · rain 2.67 mm · humidity 66% · wind 11 m/s · clouds 81%

Saturday12 September 2026

🌧️11°light rain

sunrise 06:29 · sunset 18:07 · night 12° · evening 10° · rain 0.72 mm · humidity 56% · wind 8 m/s · clouds 10%

Sunday13 September 2026

🌧️14°light rain

sunrise 06:27 · sunset 18:08 · night 8° · evening 9° · rain 1.89 mm · humidity 55% · wind 7 m/s · clouds 50%

Monday14 September 2026

🌧️11°light rain

sunrise 06:25 · sunset 18:09 · night 11° · evening 11° · rain 0.3 mm · humidity 64% · wind 6 m/s · clouds 98%

Tuesday15 September 2026

☀️14°clear sky

sunrise 06:24 · sunset 18:10 · night 14° · evening 13° · rain 3.39 mm · humidity 70% · wind 9 m/s · clouds 3%

Wednesday16 September 2026

🌧️14°light rain

sunrise 06:22 · sunset 18:11 · night 14° · evening 13° · rain 0.15 mm · humidity 77% · wind 13 m/s · clouds 16%

Thursday17 September 2026

🌧️15°light rain

sunrise 06:20 · sunset 18:12 · night 12° · evening 13° · rain 0.15 mm · humidity 60% · wind 11 m/s · clouds 29%

Friday18 September 2026

🌤️13°scattered clouds

sunrise 06:19 · sunset 18:13 · night 12° · evening 12° · rain 5.31 mm · humidity 72% · wind 13 m/s · clouds 44%

Saturday19 September 2026

🌧️15°light rain

sunrise 06:17 · sunset 18:14 · night 14° · evening 14° · rain 2.85 mm · humidity 86% · wind 11 m/s · clouds 100%

Sunday20 September 2026

🌧️12°light rain

sunrise 06:15 · sunset 18:15 · night 11° · evening 12° · rain 1.53 mm · humidity 80% · wind 7 m/s · clouds 92%

UV index in Wellington - is it safe to sunbathe?

Today the UV index in Wellington is 3 (moderate) - unprotected fair skin can burn in about 65 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.

Sea temperature - Wellington

Water today

14°C

Week avg

14°C

Waves today

1.3 m

How's the water?

very cold

16-day sea temperature forecast:

5.09 14°C6.09 14°C7.09 14°C8.09 14°C9.09 14°C10.09 14°C11.09 14°C12.09 14°C13.09 14°C

Average sea temperature through the year:

Jan 18°CFeb 19°CMar 18°CApr 17°CMay 16°CJun 15°CJul 14°CAug 13°CSep 14°COct 14°CNov 16°CDec 17°C

Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Air quality and smog in Wellington

Air quality in Wellington is currently very good. Fine particulate PM2.5: 6.9 µg/m³, PM10: 11.5 µg/m³.

City	PM2.5 (µg/m³)	PM10 (µg/m³)	Air quality
Wellington	6.9	11.5	very good

Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 13:00).

Wellington weather through the year

Upcoming public holidays in New Zealand: Labour Day — 26 October · Christmas Day — 25 December · Boxing Day — 28 December.

Nearby and related places

NelsonPalmerston NorthHastingsNew PlymouthChristchurchRotoruaAucklandDunedin

FAQ - Wellington weather

What is the weather like in Wellington today?

Today it is about 14° during the day and 14° at night, broken clouds.

How far ahead can I check the forecast for Wellington?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.