Swannanoa Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Swannanoa.

Climate overview of Swannanoa

Temperatures in Swannanoa, New Zealand, shift moderately through the seasons. The warmest month is January at 22°C (72°F), and the coolest is July at 12°C (54°F).

Annual rain/snowfall is moderate at around 804 mm (32 in), with October being the wettest month. The city also has warm summers and cold winters. Sunshine peaks in January, when the city sees around 7.9 hours of sunshine per day.

Swannanoa Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Swannanoa - and find the best time to visit.

Monthly Temperature in Swannanoa

The weather in Swannanoa changes moderately throughout the year, offering enough variation to appreciate each season. Average daytime temperatures reach a comfortable 22°C (72°F) in January. In July, the coolest month of the year, temperatures drop to a chilly 12°C (54°F).

At night, temperatures range from around 12°C (54°F) in January to 2°C (36°F) in July.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Swannanoa

Generally, Swannanoa receives mid-range precipitation levels, with 804 mm (32 in) annually. Despite minor fluctuations, Swannanoa enjoys fairly consistent precipitation throughout the year. In October, you can expect around 76 mm (3 in) of precipitation, while in March, Swannanoa receives about 55 mm (2.2 in). For more details, please visit our Swannanoa Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Sunshine Hours in Swannanoa

Swannanoa can be enjoyed more throughout the sunniest month of January under a blue sky, with approximately 7.9 hours of sunshine daily. In contrast, the city experiences much darker days in June, with only 3.9 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Christchurch, New Zealand (12 KM, 8 Miles).

Daily hours of sunshine

Data from: Christchurch, New Zealand (12 KM, 8 Miles).

Water Temperature in Swannanoa

The mean water temperature over the year ranges from 10°C (50°F) in June to 16°C (61°F) in January.

Water temperature over the year

Data from: Christchurch, New Zealand (12 KM, 8 Miles).

Humidity in Swannanoa by Month

Wind Speed in Swannanoa

Best Time to Visit Swannanoa

Conditions in Swannanoa are generally most comfortable in January, February, March and December. They are typically least comfortable in June, July and August.

Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.

  • Best overall: January, February, March and December
  • Warmest weather: January and February
  • Most sunshine: January
  • Warmest water temperature: January and February, although the water may still feel cool.
  • Seasonal pattern: Warm summers and cold winters

Frequently asked questions about the climate in Swannanoa

What is the best time to visit Swannanoa?

January, February, March and December typically offer the most optimal weather in Swannanoa. In contrast, June, July and August tend to have less optimal conditions. Swannanoa has warm summers and cold winters.

What temperatures can I expect in Swannanoa?

Daytime highs range from 12°C (54°F) in July to 22°C (72°F) in January. Nighttime lows range from 2°C (36°F) to 12°C (54°F).

How much rain does Swannanoa get?

Annual rainfall is around 804 mm (32 in). October is the wettest month with 76 mm (3 in), while March is the driest with 55 mm (2.2 in).

How sunny is Swannanoa?

Swannanoa receives around 2,129 hours of sunshine per year. January is the sunniest month with 238 hours, while June is the cloudiest with just 117 hours. Overall, Swannanoa enjoys abundant sunshine.

Swannanoa 3-Day Forecast

Swannanoa on the map

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