Wellington Weather in August

🇳🇿 New Zealand

12°C

High

9°C

Low

Rain Days

Sunshine

65%

Humidity

Oceania › 🇳🇿 New Zealand › Wellington

Updated: March 2026

Is August a Good Time to Visit Wellington?

4/10

Fair

August is a fair time to visit Wellington (4/10). With 8 daily sunshine hours and only 13 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 9th sunniest of the year in Wellington. August suits travellers visiting for indoor culture, food, and architecture rather than outdoor activities. Pack accordingly for 13 potential rain days. September offers a similar profile at lower hotel rates if dates are flexible. The main practical note: Wellington's popular sites are busiest between 10am and 3pm regardless of season. Arriving at opening time or after 4pm makes a significant difference to the experience. Planning tips: most accommodation categories have availability, and last-minute deals are common. The quieter streets and shorter queues can make this a genuinely enjoyable time to visit for the right type of traveller. Budget-conscious visitors will find the best value of the year in this period.

vs July:11°C avg high

Based on 30-year climate normals (1991 to 2020), August in Wellington averages 12°C by day and 9°C overnight, a range that places it at the cooler end of the annual distribution. The month records approximately 8 sunshine hours per day and 83mm of total rainfall across 13 wet days, giving it a sunshine-to-rain ratio that is broadly workable for most itineraries.

12°C

Avg High

9°C

Avg Low

13 days

Rain Days

Sunshine

65%

Humidity

Temperature in Wellington in August

The narrow 3°C gap between daytime and overnight temperatures, characteristic of coastal cities with maritime moderation, means a single mid-layer works across the whole day. Humidity averages 65%, which is comfortable for most visitors. On warmer days, lighter fabrics help with the mild stickiness in the afternoon. The UV index of 1 is low, meaning sun exposure is minimal concern and sunscreen is largely optional. Average wind speeds of 29 km/h add a meaningful windchill factor, making the 12°C temperature feel cooler than it reads. In Fahrenheit: 54°F average high, 48°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).

Temperature in August

Monthly Precipitation (mm)

What to Wear in Wellington in August

Morning9°CBefore the day warms up

Afternoon12°CPeak daytime temperature

Evening12°CAfter sunset cools down

Packing for Wellington in August means dressing for 12°C days and 9°C evenings. Layering is key: a thermal base, mid-layer fleece, and a windproof outer jacket for 12°C highs that feel colder in the wind. Evening temperatures settle at 9°C, a modest 3°C drop that a light cardigan or denim jacket covers. Comfortable walking trainers are the versatile choice for both outdoor sightseeing and indoor venues. With 13 rain days expected, a compact travel umbrella is worth the bag space. A waterproof jacket is better than an umbrella if you plan full-day outdoor routes.

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Local tip: Layers are more practical than a single heavy garment in Wellington. The day-to-evening temperature shift rewards packing a versatile mid-layer you can add or remove as conditions change.

Events in Wellington in August

August has no major festivals or public holidays in Wellington, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.

What to Pack for Wellington in August

Based on 12°C average highs and 13 rainy days

Warm jacket (down or fleece)
Merino wool base layer (regulates temperature and resists odour)
Sweaters and lined trousers
Scarf and lightweight gloves
Compact folding umbrella
Waterproof outer layer or packable rain jacket
Quick-dry clothing that recovers fast after a shower
Comfortable walking shoes (a second pair lets the first air out overnight)
Universal travel adapter
Small day pack for city exploration
Reusable water bottle

Best Activities in Wellington in August

Vigorous walking tour of the UNESCO heritage districtMidday (12-2pm)The 12°C peak temperature provides ideal conditions for brisk sightseeing walks
Cycling the riverside or park circuitAfternoon (1-4pm)Cool dry air makes long cycling sessions comfortable without overheating
Explore hilltop viewpoints and fortressesMorning for clear viewsCold-weather atmospheric clarity gives the longest sightlines of the year
Open-air Christmas or seasonal marketsAfternoon into eveningCool temperatures make festive outdoor markets genuinely atmospheric
Spend a morning in the national or city art museumOpens at 10am; arrive earlyWith 13 rain days expected, having a full-day indoor plan is practical insurance
Cooking class focused on regional cuisineHalf-day sessions run 10am-1pm or 3-6pmIndoor activity that fills a rainy half-day with genuine cultural content
Visit covered historical sites: cathedral, palace, or bazaarAny time; most crowded middayRoofed monuments and covered markets provide exploration without weather exposure
Visit the main botanical garden or city park at seasonal peakYear-round; best light in morningAugust brings distinct seasonal changes to public green spaces worth exploring
Warm up with traditional hot dishes: local stew, fondue, or braised specialities at a neighbourhood restaurantLunch (12-2pm) or dinner (7-9pm)Cold-weather cuisine is a genuine cultural experience and the best local restaurants serve their heartiest dishes in cooler months

Why is Wellington cool in August?

In August, Wellington feels the full influence of the continental polar air mass, which dominates mid-latitude interiors during winter. Cold, dry air from the north suppresses temperatures to 12°C during the day, dropping further to 9°C at night when radiative cooling is greatest. Precipitation tends to be low, as the cold air holds little moisture. Climate data: Open-Meteo ERA5 (1991–2020).

Sunshine Hours

The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.

UV Index

A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate -- wear sunscreen. UV 6-7: High -- hat and SPF 30+ essential. UV 8-10: Very High -- limit midday exposure. UV 11+: Extreme -- seek shade between 10am-4pm.

Rain Days

A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.

Humidity

Relative humidity as a percentage. Below 40%: Dry -- skin and throat may feel parched. 40-60%: Comfortable -- ideal for most people. 60-80%: Sticky -- light, breathable fabrics recommended. Above 80%: Muggy -- heat feels more intense; quick-dry clothing is essential.

Frequently Asked Questions: Wellington in August

In August, Wellington experiences average highs of 12°C (54°F) and lows of 9°C (48°F). Expect around 13 rainy days and 8 hours of sunshine per day, with humidity averaging 65%. The 3°C gap between daytime and overnight temperatures is worth planning around: light layers work for most visitors during the day, but an extra jacket is essential for evenings. UV exposure is moderate at index 1.

Wellington typically sees 13 rainy days in August, with total precipitation of around 83mm. Rain is moderate and manageable. Showers tend to pass quickly, and a light rain layer or foldable umbrella is sufficient protection for most days. For context, the driest month in Wellington typically sees 4-6 fewer rain days than August.

Pack a warm jacket, sweaters, and layering pieces for Wellington in August. Temperatures can drop to 9°C at night, so thermal underlayers are advisable for evening outings. Waterproof footwear is important with 13 rainy days expected. A scarf, hat, and gloves handle the windchill on clear cold days, which often feel colder than the thermometer reads.

August is a reasonable time to visit Wellington. Expect 13 rainy days, so pack a light rain layer for flexibility. Average temperatures of 12°C make outdoor exploration comfortable during the dry periods. With 8 daily sunshine hours, there are reliable windows of good weather to plan outdoor activities around, even if the month is not the driest on the calendar.

The average high temperature in Wellington in August is 12°C (54°F), and the average low is 9°C (48°F). The mean daily temperature is approximately 11°C (51°F). The day-to-night range of 3°C is narrow, typical of coastal or maritime cities. These are 30-year climate normals based on the 1991 to 2020 reference period; individual years will vary, particularly in transitional months like spring and autumn.

The best month to visit Wellington is generally January. January offers the most sunshine at 12 hours per day and only 8 rainy days. Average temperatures reach 18°C, making it comfortable for sightseeing, outdoor dining, and exploring the city. If your travel dates are flexible, planning your trip around January gives you the best chance of dry, bright weather.

August is shoulder or low season in Wellington, meaning fewer tourists and generally lower prices than peak months. With 8 sunshine hours and 13 rainy days, the weather is less of a draw for mass tourism. This is an advantage for travellers who prefer a quieter, more relaxed experience with shorter queues and easier accommodation availability.

In August, Wellington suits a range of activities thanks to cool conditions around 12°C. Mix of indoor and outdoor activities works well given the moderate chance of rain. Top options include exploring historic neighbourhoods, visiting museums and galleries, local food markets, and day trips to surrounding areas. With 8 hours of sunshine, parks and waterfront walks are particularly enjoyable.

August ranks 9th sunniest of the year in Wellington, with an average 8 daily sunshine hours. The driest months are February, January, and March. February is the hottest month (19°C avg high); July is the coolest (11°C). From here, temperatures rise 1°C into September. Compared to last month (July: 11°C high, 12 rain days), August is warmer and wetter. August sits in the middle of the annual sunshine ranking for Wellington, offering a reasonable balance of good weather and manageable crowds.

Year-Round Climate

Month	High	Low	Rain Days	Sun	Details
January	18°C	15°C	8	12h	View
February	19°C	15°C	7	11h	View
March	18°C	14°C	8	10h	View
April	16°C	13°C	10	8h	View
May	14°C	11°C	10	7h	View
June	12°C	10°C	12	6h	View
July	11°C	9°C	12	7h	View
August	12°C	9°C	13	8h	View
September	13°C	10°C	12	9h	View
October	14°C	11°C	12	10h	View
November	15°C	12°C	10	11h	View
December	17°C	14°C	11	12h	View

Other Months in Wellington

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Plan Your Trip to Wellington

Best Time to Visit Wellington Wellington vs Auckland in August Wellington vs Christchurch in August

Nearby Destinations with Similar Weather

These cities are within 500 km and experience broadly comparable weather conditions during the same calendar month, making them practical standalone alternatives or worthwhile additions to a longer regional itinerary.

Auckland🇳🇿 New Zealand493 km away

14°C9°C low

Christchurch🇳🇿 New Zealand305 km away

11°C4°C low

Data Sources for Wellington

Wellington on Wikipedia Open-Meteo Climate API NOAA National Centers UK Met Office WMO GeoNames

Climate normals represent 30-year averages (1991-2020). Individual years may vary.