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May Weather in Sefton, New Zealand

Last updated: August 31, 2025

In May, the average temperature in Sefton, New Zealand hovers around 11°C (52°F). Expect a minimum of 4°C (39°F) and a maximum of 19°C (67°F). During this time, anticipate about 73 mm (2.9 in) of precipitation spread over 9 days, contributing to an average humidity level of 82%.

May Temperature in Sefton

In May in Sefton, the average temperature is 11°C (52°F). The maximum can reach 19°C (67°F), while the minimum can drop to as low as 4°C (39°F). This makes it a great time to explore Sefton, but be sure to pack layers to stay comfortable during the varying temperatures.

May Weather in Sefton: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Sefton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sefton, May typically has an average temperature of 11°C (52°F), with highs reaching up to 19°C (67°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec616159555247464749525659
Data source: Temperature data for Sefton generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Sefton

In Sefton in May, the precipitation amount is 73 mm (2.9 in), occurring over the course of 9 days.

May Precipitation Trends in Sefton

The chart displays monthly precipitation patterns in Sefton, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Sefton, May typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec5755718573797755627786104
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Sefton

In Sefton in May, humidity is 82%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers and stay prepared for the moisture-laden air as you explore your surroundings.

May Average Humidity in Sefton

This chart illustrates the average monthly humidity levels in Sefton, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Sefton is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%72%77%77%82%84%85%83%82%79%77%75%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Sefton

In Sefton in May, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Sefton for better planning.

Maximum UV Index Levels in Sefton for May

The chart shows the monthly maximum UV Index (UVI) for Sefton in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Sefton typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1312964224691012
Data source: Sefton May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How May Weather in Sefton Compares to Other Months

Weather in Sefton varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Sefton, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Sefton, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (62°F)57 mm (2.2 inches)72%extreme
February Weather16°C (62°F)55 mm (2.2 inches)72%extreme
March Weather15°C (59°F)71 mm (2.8 inches)77%very high
April Weather13°C (55°F)85 mm (3.4 inches)77%high
May Weather11°C (52°F)73 mm (2.9 inches)82%moderate
June Weather9°C (48°F)79 mm (3.1 inches)84%low
July Weather8°C (46°F)77 mm (3.0 inches)85%low
August Weather8°C (47°F)55 mm (2.2 inches)82%moderate
September Weather10°C (49°F)62 mm (2.4 inches)82%high
October Weather11°C (52°F)77 mm (3.0 inches)79%very high
November Weather13°C (56°F)86 mm (3.4 inches)77%very high
December Weather15°C (59°F)104 mm (4.1 inches)75%extreme

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