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    New Zealand

    South Island - New Zealand weather in May 2025

    New Zealand

    South Island - New Zealand weather in May 2025

     

    Day

    13 °C

     

    Night

    4 °C

     

    Sea

    14 °C

     

    Precipitation

    84 mm

    in month

     

    Rainy days

    11 days

    in month

     

    Daylight

    9 hours

    average

     

    Sunshine

    4 hours

    average

     

    Humidity

    82 %

     

    Day

    13 °C

     

    Night

    4 °C

     

    Sea

    14 °C

     

    Precipitation

    84 mm

    in month

     

    Rainy days

    11 days

    in month

     

    Daylight

    9 hours

    average

     

    Sunshine

    4 hours

    average

     

    Humidity

    82 %

    Overview: South Island - New Zealand
    In South Island in May, the average air temperature ranges from 13 °C (56 °F) during the day to 4 °C (39 °F) at night. There are 11 days of rain on average, where the rainfall is 84 mm (3.31 in).

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    Aerial view of countryside in Christchurch on a day with cloudy weather
    Aerial view of beach in Queenstown at sunset time
    Mountain range near Wanaka in sunny weather with few clouds

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    Weather overview and FAQs

    Weather overview

    In South Island in May, the average air temperature ranges from 13 °C (56 °F) during the day to 4 °C (39 °F) at night. There are 11 days of rain on average, where the rainfall is 84 mm (3.31 in).

    Are there good conditions to visit in May in South Island?

    South Island can be visited in May - the weather will be moderate. A relatively low temperature of 13 °C (56 °F) may be ideal for walking or outdoor activities, but some people may have a different idea of the holiday. The night temperature of 4 °C (39 °F) is not inviting for evening and night activities except for visiting a bar and having beer or two.

    What temperature can I expect during the day in May in South Island?

    The average daily temperature in South Island in May is 13 °C (56 °F). Don't forget a sweater and light or normal jacket, but also pack light clothing in case the temperatures are above average. The weather at this time can be somewhat changeable and a wide range of clothing can become handy.

    What is the night temperature in South Island in May?

    The average night temperature in South Island in May is 4 °C (39 °F). The nights will be cool, layers of clothes will be needed for evening and morning walks, the hotel should be equipped with heating.

    How many days of precipitation on average can I expect in South Island in May?

    In South Island in May, we can expect 11 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.7 days of the week, or in general - 38 % days.

    What is the rainfall intensity in South Island in May?

    There is precipitation of 84 mm (3.31 in) in South Island in May, which means 3 mm (0.11 in) rainfall per day on average.

    How long is the day (from dawn till dusk) in South Island in May?

    The length of daylight in South Island in May is 9 hours.

    Is South Island rainier in May than in April?

    Yes, South Island is a rainier May than in April.

    Is May part of the dry season in South Island?

    No, May is not a dry month in South Island, expect rain approximately 11 days in a month.

    Is the weather in South Island warmer in May than in April?

    No, in May in South Island the temperature is not higher than in April.

    How humid is South Island in May?

    Humidity in South Island in May is 82 %.

    How windy is South Island in May?

    In May in South Island, there will be an average wind scale of 4.

    Is the temperature rising or falling in the course of time in South Island in May?

    During May in South Island, the day temperatures are decreasing - from 15 °C (59 °F) at the beginning of the month to 12 °C (53 °F) at the end of the month.

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