nomadseason

May Weather in Wellington, United States

Last updated: June 24, 2025

In May, the average temperature in Wellington, United States hovers around 19°C (66°F). Expect a minimum temperature of 3°C (38°F), while the maximum can reach up to 34°C (94°F). This month typically sees 215 mm (8.4 in) of precipitation spread over 15 days, coupled with a relatively high average humidity of 82%. Get ready for a mix of conditions!

May Temperature in Wellington

In May in Wellington, the average temperature is 19°C (66°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 3°C (38°F). This diverse temperature range makes Wellington an ideal destination for travelers seeking both warm days and cooler evenings.

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

The chart illustrates May temperature patterns in Wellington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wellington, May typically has an average temperature of 19°C (66°F), with highs reaching up to 34°C (94°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec303246546677797672574437
Data source: Temperature data for Wellington generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Wellington

In Wellington in May, the precipitation amount is 215 mm (8.4 in) over a span of 15 days.

May Precipitation Trends in Wellington

The chart displays monthly precipitation patterns in Wellington, 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 Wellington, May typically receives around 215 mm (8.4 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec56441028621510810197741134733
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Wellington

In Wellington in May humidity is 82%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket wrapping around you, making it slightly uncomfortable for traveling as you might find yourself constantly seeking shade or a cool breeze.

May Average Humidity in Wellington

This chart illustrates the average monthly humidity levels in Wellington, 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 Wellington is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%78%75%77%82%83%81%78%72%72%84%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Wellington

In Wellington in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Wellington.

Maximum UV Index Levels in Wellington for May

The chart shows the monthly maximum UV Index (UVI) for Wellington 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 Wellington typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
Data source: Wellington 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 Wellington Compares to Other Months

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

This table compares monthly weather conditions in Wellington, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)56 mm (2.2 inches)80%moderate
February Weather0°C (33°F)44 mm (1.7 inches)78%moderate
March Weather8°C (46°F)102 mm (4.0 inches)75%high
April Weather12°C (54°F)86 mm (3.4 inches)77%very high
May Weather19°C (66°F)215 mm (8.4 inches)82%very high
June Weather25°C (77°F)108 mm (4.2 inches)83%extreme
July Weather26°C (79°F)101 mm (4.0 inches)81%extreme
August Weather25°C (77°F)97 mm (3.8 inches)78%very high
September Weather22°C (72°F)74 mm (2.9 inches)72%very high
October Weather14°C (57°F)113 mm (4.5 inches)72%high
November Weather7°C (44°F)47 mm (1.9 inches)84%moderate
December Weather3°C (38°F)33 mm (1.3 inches)86%moderate

Compare Wellington's Climate with Cities Worldwide