Wellington
New Zealand
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
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
January in Wellington, New Zealand, is a pleasant summer month, with temperature in the range of an average high of 20.1°C (68.2°F) and an average low of 13.1°C (55.6°F).

Temperature

In Wellington, the average high-temperature is essentially the same as in December - an agreeable 20.1°C (68.2°F). The average low-temperature, in Wellington, is 13.1°C (55.6°F).

Humidity

The average relative humidity in Wellington, New Zealand, is 79.5%.

Rainfall

In Wellington, in January, it is raining for 7.2 days, with typically 77.8mm (3.1") of accumulated precipitation. Throughout the year, in Wellington, New Zealand, there are 124 rainfall days, and 1243.6mm (49") of precipitation is accumulated.

Sea temperature

In January, the average sea temperature is 16.6°C (61.9°F). For swimming, a surface water temperature of 16.6°C (61.9°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

The average length of the day in January is 14.8h.

Sunshine

January has the most sunshine of the year, with an average of 7.8h of sunshine.

UV index

The month with the highest UV index in Wellington, New Zealand, is January, with an average maximum UV index of 11. A UV Index value of 11, and more, symbolizes an excessive health risk from unsafe exposure to the UV radiation for average individuals.
The daily maximum UV index of 11 interpret into the following advice:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in January in Wellington?

The average high-temperature, in January, in Wellington, is 20.1°C (68.2°F), while the average low-temperature is 13.1°C (55.6°F).

What is the average humidity in January in Wellington?

In January, the average relative humidity in Wellington is 79.5%.

How much does it rain in Wellington in January?

In Wellington, New Zealand, in January, it is raining for 7.2 days, with typically 77.8mm (3.1") of accumulated precipitation.

What is the sea temperature in January in Wellington?

In January, the average sea temperature is 16.6°C (61.9°F). For swimming, a surface water temperature of 16.6°C (61.9°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as 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 length of the day in Wellington, New Zealand, is 14.8h.

What month has the most sunshine in Wellington?

January has the most sunshine of the year, with an average of 7.8h of sunshine.

How many hours of sunshine does Wellington have in January?

In Wellington, the average sunshine in January is 7.8h.

When is the highest UV index in Wellington?

The month with the highest UV index in Wellington is January, with an average maximum UV index of 11.

How high is the UV index in January in Wellington?

In Wellington, the average daily maximum UV index in January is 11. A UV Index reading of 11, and higher, represents an extreme health vulnerability from the exposure to the Sun's UV rays.
Average temperature in January - Wellington, New Zealand
  • Average high temperature in January: 20.1°C

The warmest month (with the highest average high temperature) is February (20.3°C).
The month with the lowest average high temperature is July (11.1°C).

  • Average low temperature in January: 13.1°C

The month with the highest average low temperature is February (13.3°C).
The coldest month (with the lowest average low temperature) is July (5.9°C).

Average humidity in January - Wellington, New Zealand
  • Average humidity in January: 79.5%

The month with the highest relative humidity is July (86.1%).
The month with the lowest relative humidity is November (78.9%).

Average rainfall in January - Wellington, New Zealand
  • Average rainfall in January: 77.8mm

The wettest month (with the highest rainfall) is July (136.4mm).
The driest month (with the lowest rainfall) is February (76.9mm).

Average rainfall days in January - Wellington, New Zealand
  • Average rainfall days in January: 7.2 days

Months with the highest number of rainy days are June and July (13.3 days).
The month with the lowest number of rainy days is February (7 days).

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).

Average daylight in January / Average sunshine in January - Wellington, New Zealand
  • Average daylight in January: 14.8h

The month with the longest days is December (Average daylight: 15.1h).
The month with shortest days is June (Average daylight: 9.2h).

  • Average sunshine in January: 7.8h

The month with most sunshine is January (Average sunshine: 7.8h).
The month with least sunshine is June (Average sunshine: 3.4h).

Average UV index in January - Wellington, New Zealand
  • Average UV index in January: 11

The month with the highest UV index is January (UV index 11).
Months with the lowest UV index are June and July (UV index 1).