May 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 May

May, the last month of the autumn in Wellington, is another mild month, with an average temperature varying between 11.4°C (52.5°F) and 14.1°C (57.4°F).

Temperature

In Wellington, the average high-temperature in May is relatively the same as in April - a still moderate 14.1°C (57.4°F). In Wellington, the average low-temperature is 11.4°C (52.5°F).

Humidity

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

Rainfall

In Wellington, it is raining for 13.4 days, with typically 33mm (1.3") of accumulated precipitation. Throughout the year, there are 144.3 rainfall days, and 394mm (15.51") of precipitation is accumulated.

Sea temperature

In May, the average sea temperature in Wellington is 14.7°C (58.5°F).
Note: Swimming in 14.7°C (58.5°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In May, the average length of the day in Wellington, New Zealand, is 9h and 50min.
On the first day of May, sunrise is at 7:07 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:01 pm NZST.

Sunshine

In May, the average sunshine is 7.4h.

UV index

The months with the lowest UV index are May and June, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 3 in May interpret into the following advice:
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 May in Wellington?

The average high-temperature, in May, in Wellington, is 14.1°C (57.4°F), while the average low-temperature is 11.4°C (52.5°F).

What is the average humidity in May in Wellington?

In May, the average relative humidity is 79%.

How many days does it rain in May in Wellington?

In May, in Wellington, New Zealand, the rain falls for 13.4 days. Throughout May, 33mm (1.3") of precipitation is accumulated.

What is the sea water temperature in May in Wellington?

In Wellington, the average seawater temperature in May is 14.7°C (58.5°F). Swimming in 14.7°C (58.5°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

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

The average day length in May in Wellington is 9h and 50min.

When is the sunrise / sunset in May in Wellington?

In May, on the first day of the month, sunrise is at 7:07 am and sunset at 5:28 pm. On the last day of the month, in Wellington, New Zealand, sunrise is at 7:35 am and sunset at 5:01 pm NZST.

How many hours of sunshine does Wellington have in May?

In Wellington, the average sunshine duration in May is 7.4h.

What are the months with the lowest UV index in Wellington?

May and June, with an average maximum UV index of 3, are months with the lowest UV index.

How high is the UV index in May in Wellington?

In Wellington, the average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.

Average temperature in May
Wellington, New Zealand

Average temperature in May - Wellington, New Zealand
  • Average high temperature in May: 14.1°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 May: 11.4°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 May
Wellington, New Zealand

Average pressure in May - Wellington, New Zealand
  • Average pressure in May: 1014mbar

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 May
Wellington, New Zealand

Average wind speed in May - Wellington, New Zealand
  • Average wind speed in May: 25.5km/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 May
Wellington, New Zealand

Average humidity in May - Wellington, New Zealand
  • Average humidity in May: 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 May
Wellington, New Zealand

Average rainfall in May - Wellington, New Zealand
  • Average rainfall in May: 33mm

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 May
Wellington, New Zealand

Average rainfall days in May - Wellington, New Zealand
  • Average rainfall days in May: 13.4 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 May
Wellington, New Zealand

Average sea temperature in May - Wellington, New Zealand
  • Average sea temperature in May: 14.7°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 May /
Average sunshine in May
Wellington, New Zealand

Average daylight in May / Average sunshine in May - Wellington, New Zealand
  • Average daylight in May: 9h and 50min

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 May: 7h and 24min

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 May
Wellington, New Zealand

Average sunshine days in May - Wellington, New Zealand
  • Average sunshine days in May: 13.9 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 May
Wellington, New Zealand

Average UV index in May - Wellington, New Zealand
  • Average UV index in May: 3

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 May
Wellington, New Zealand

Average cloud cover in May - Wellington, New Zealand
  • Average cloud cover in May: 38

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 May
Wellington, New Zealand

Average visibility in May - Wellington, New Zealand
  • Average visibility in May: 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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