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May Weather in Carterton, New Zealand

Last updated: August 31, 2025

In May, the average temperature in Carterton, New Zealand hovers around 10°C (51°F). Expect chilly nights with a minimum temperature dropping to -2°C (29°F), while pleasant daytime highs can reach up to 19°C (66°F). During this month, precipitation averages 69 mm (2.7 in) over 10 days, contributing to an average humidity level of 82%. Be prepared for a mix of cool air and occasional rain!

May Temperature in Carterton

In May in Carterton, the average temperature is 10°C (51°F). The maximum can reach 19°C (66°F), while the minimum can drop as low as -2°C (29°F). Be sure to pack both warm and light clothing to comfortably enjoy your travels during this time.

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

The chart illustrates May temperature patterns in Carterton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Carterton, May typically has an average temperature of 10°C (51°F), with highs reaching up to 19°C (66°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec626259545147454648525659
Data source: Temperature data for Carterton 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 Carterton

In Carterton in May, the precipitation amount is 69 mm (2.7 in) spread over a period of 10 days.

May Precipitation Trends in Carterton

The chart displays monthly precipitation patterns in Carterton, 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 Carterton, May typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec62688411069101989011395110143
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Carterton

In Carterton in May humidity is 82%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill that clings to your skin, making outdoor adventures less appealing and prompting travelers to seek cozy indoor activities or warm drinks to counter the brisk air.

May Average Humidity in Carterton

This chart illustrates the average monthly humidity levels in Carterton, 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 Carterton is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%76%76%77%82%83%84%81%80%79%78%75%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Carterton

In Carterton 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 Carterton for better planning.

Maximum UV Index Levels in Carterton for May

The chart shows the monthly maximum UV Index (UVI) for Carterton 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 Carterton typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1313974224691113
Data source: Carterton 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 Carterton Compares to Other Months

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

This table compares monthly weather conditions in Carterton, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (62°F)62 mm (2.4 inches)75%extreme
February Weather16°C (62°F)68 mm (2.7 inches)76%extreme
March Weather15°C (59°F)84 mm (3.3 inches)75%very high
April Weather12°C (55°F)110 mm (4.3 inches)77%high
May Weather10°C (51°F)69 mm (2.7 inches)82%moderate
June Weather8°C (47°F)101 mm (4.0 inches)83%low
July Weather7°C (46°F)98 mm (3.9 inches)83%low
August Weather8°C (47°F)90 mm (3.6 inches)81%moderate
September Weather9°C (49°F)113 mm (4.5 inches)80%high
October Weather11°C (52°F)95 mm (3.7 inches)79%very high
November Weather13°C (56°F)110 mm (4.3 inches)78%extreme
December Weather15°C (60°F)143 mm (5.6 inches)75%extreme

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