January weather forecast
Wellington, New Zealand

A red cable bus on the road in Wellington, New Zealand, with the view of the sea, mountains, and the city in the distance
A red cable bus on the road in Wellington, New Zealand, with the view of the sea, mountains, and the city in the distance

Weather in January

January, like December, in Wellington, New Zealand, is another enjoyable summer month, with an average temperature ranging between max 18.5°C (65.3°F) and min 15°C (59°F).

Temperature

In January, the average high-temperature is practically the same as in December - a still comfortable 18.5°C (65.3°F). In Wellington, the average low-temperature is 15°C (59°F).

Humidity

In January, the average relative humidity in Wellington is 79%.

Rainfall

The months with the least rainfall in Wellington are January and February Rain falls for 9.6 days and accumulates 20mm (0.79") of rain.

Sea temperature

In January, the average sea temperature in Wellington is 16.6°C (61.9°F).
Note: Swimming in 16.6°C (61.9°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

The average length of the day in January in Wellington is 14h and 46min.
On the first day of January, sunrise is at 5:51 am and sunset at 8:57 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 8:43 pm NZDT.

Sunshine

In January, the average sunshine is 8.8h.

UV index

The months with the highest UV index are January through March and December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 5 in January transform into the following instructions:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in January in Wellington?

In January, in Wellington, the average high-temperature is 18.5°C (65.3°F), and the average low-temperature is 15°C (59°F).

What is the average humidity in January in Wellington?

In January, the average relative humidity in Wellington, New Zealand, is 79%.

What is the driest month in Wellington?

January and February are months with the least rain in Wellington, New Zealand, when the rain falls for 9.6 days and typically aggregates up to 20mm (0.79") of rain.

How many days does it rain in January in Wellington?

In Wellington, New Zealand, during January, the rain falls for 9.6 days and regularly aggregates up to 20mm (0.79") of precipitation.

What is the sea water temperature in January in Wellington?

In January, the average sea temperature is 16.6°C (61.9°F). Swimming in 16.6°C (61.9°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

What is the average length of the day in January in Wellington?

In January, the average day length in Wellington, New Zealand, is 14h and 46min.

When is the sunrise / sunset in January in Wellington?

On the first day of January in Wellington, sunrise is at 5:51 am and sunset at 8:57 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 8:43 pm NZDT.

How long on average sun shines in January in Wellington?

In Wellington, the average sunshine duration in January is 8.8h.

When is the highest UV index in Wellington?

The months with the highest UV index are January through March and December, with an average maximum UV index of 5.

How high is the UV index in January in Wellington?

In January, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.

Average temperature in January
Wellington, New Zealand

Average temperature in January - Wellington, New Zealand
  • Average high temperature in January: 18.5°C

The warmest month (with the highest average high temperature) is February (18.8°C).
The month with the lowest average high temperature is July (11.4°C).

  • Average low temperature in January: 15°C

The month with the highest average low temperature is February (15.4°C).
The coldest month (with the lowest average low temperature) is July (9°C).

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Average pressure in January
Wellington, New Zealand

Average pressure in January - Wellington, New Zealand
  • Average pressure in January: 1012.4mbar

The month with the highest atmospheric pressure is March (1017.7mbar).
The months with the lowest atmospheric pressure are September and November (1012.2mbar).

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Average wind speed in January
Wellington, New Zealand

Average wind speed in January - Wellington, New Zealand
  • Average wind speed in January: 25.7km/h

The windiest month (with the highest average wind speed) is September (26.9km/h).
The calmest month (with the lowest average wind speed) is March (23.1km/h).

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Average humidity in January
Wellington, New Zealand

Average humidity in January - Wellington, New Zealand
  • Average humidity in January: 79%

The months with the highest relative humidity are February, March, April and December (80%).
The month with the lowest relative humidity is July (78%).

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Average rainfall in January
Wellington, New Zealand

Average rainfall in January - Wellington, New Zealand
  • Average rainfall in January: 20mm

The wettest month (with the highest rainfall) is June (47mm).
The driest months (with the least rainfall) are January and February (20mm).

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Average rainfall days in January
Wellington, New Zealand

Average rainfall days in January - Wellington, New Zealand
  • Average rainfall days in January: 9.6 days

The month with the highest number of rainy days is June (14.5 days).
The month with the least rainy days is February (8 days).

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Average sea temperature in January
Wellington, New Zealand

Average sea temperature in January - Wellington, New Zealand
  • Average sea temperature in January: 16.6°C

The best month for swimming (with the highest average sea temperature) is February (17.1°C).
The coldest month (with the lowest average sea temperature) is August (12.3°C).

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Average daylight in January /
Average sunshine in January
Wellington, New Zealand

Average daylight in January / Average sunshine in January - Wellington, New Zealand
  • Average daylight in January: 14h and 46min

The month with the longest days is December (Average daylight: 15h and 6min).
The month with the shortest days is June (Average daylight: 9h and 15min).

  • Average sunshine in January: 8h and 48min

The month with the most sunshine is December (Average sunshine: 9h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 24min).

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Average sunshine days in January
Wellington, New Zealand

Average sunshine days in January - Wellington, New Zealand
  • Average sunshine days in January: 18 days

The month with the most sunshine days is March (19 days).
The month with the least sunshine days is June (11.5 days).

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Average UV index in January
Wellington, New Zealand

Average UV index in January - Wellington, New Zealand
  • Average UV index in January: 5

The months with the highest UV index are January, February, March and December (UV index 5).
The months with the lowest UV index are May and June (UV index 3).

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Average cloud cover in January
Wellington, New Zealand

Average cloud cover in January - Wellington, New Zealand
  • Average cloud cover in January: 31

The month with the most cloud cover is June (Cloud cover 44).
The month with the least cloud cover is February (Cloud cover 30).

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Average visibility in January
Wellington, New Zealand

Average visibility in January - Wellington, New Zealand
  • Average visibility in January: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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