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

May 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
May, the last month of the autumn, in Wellington, is also a moderate month, with temperature in the range of an average low of 8.6°C (47.5°F) and an average high of 14°C (57.2°F).

Temperature

In May, the average high-temperature is practically the same as in April - a moderate 14°C (57.2°F). In Wellington, the average low-temperature is 8.6°C (47.5°F).

Humidity

The average relative humidity in May is 84.6%.

Rainfall

In Wellington, it is raining for 11.6 days, with typically 120.3mm (4.7") of accumulated precipitation. In Wellington, during the entire year, the rain falls for 124 days and collects up to 1243.6mm (49") of precipitation.

Sea temperature

In May, the average sea temperature is 14.7°C (58.5°F).
Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

Daylight

The average length of the day in Wellington, New Zealand, is 9.8h.

Sunshine

In Wellington, the average sunshine in May is 4.1h.

UV index

The average daily maximum UV index in May is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: In May, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in May in Wellington?

In May, the average high-temperature is 14°C (57.2°F), and the average low-temperature is 8.6°C (47.5°F).

What is the average humidity in May in Wellington?

The average relative humidity in May in Wellington is 84.6%.

How much does it rain in Wellington in May?

In Wellington, during May, the rain falls for 11.6 days and regularly aggregates up to 120.3mm (4.7") of precipitation.

What is the sea water temperature in May in Wellington?

In May, the average sea temperature is 14.7°C (58.5°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

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

The average length of the day in May in Wellington is 9.8h.

How long on average sun shines in May in Wellington?

In Wellington, the average sunshine in May is 4.1h.

How high is the UV index in May in Wellington?

In Wellington, the average daily maximum UV index in May is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in May - Wellington, New Zealand
  • Average high temperature in May: 14°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 May: 8.6°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 May - Wellington, New Zealand
  • Average humidity in May: 84.6%

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 May - Wellington, New Zealand
  • Average rainfall in May: 120.3mm

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 May - Wellington, New Zealand
  • Average rainfall days in May: 11.6 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 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).

Average daylight in May / Average sunshine in May - Wellington, New Zealand
  • Average daylight in May: 9.8h

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 May: 4.1h

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 May - Wellington, New Zealand
  • Average UV index in May: 2

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).