May Weather in Palmerston, New Zealand

Last updated: August 31, 2025

In May, the average temperature in Palmerston, New Zealand hovers around 9°C (49°F). Expect variations, with minimums dipping to 0°C (32°F) and maximums reaching 18°C (65°F). Be prepared for 40 mm (1.6 in) of precipitation spread over 9 days, and enjoy the crisp atmosphere with an average humidity of 84%.

May Temperature in Palmerston

In May in Palmerston, the average temperature is 9°C (49°F). The maximum can reach 18°C (65°F), while the minimum can drop as low as 0°C (32°F). It's a great time to visit if you enjoy mild weather and the chance to experience both cool and warmer days.

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

The chart illustrates May temperature patterns in Palmerston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Palmerston, May typically has an average temperature of 9°C (49°F), with highs reaching up to 18°C (65°F) and lows dropping to around 0°C (32°F).

Data source: Temperature data for Palmerston generated using information from the Copernicus Climate Change Service.

May Precipitation in Palmerston

In Palmerston in May, the precipitation amount is 40 mm (1.6 in) over the course of 9 days.

May Precipitation Trends in Palmerston

The chart displays monthly precipitation patterns in Palmerston, 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 Palmerston, May typically receives around 40 mm (1.6 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Palmerston

In Palmerston in May, humidity is 84%. With an average temperature of 9°C (49°F), this humidity feels like a chilly embrace, making travel uncomfortable as the dampness seeps into your clothes and lingers in the air, leaving you feeling cool yet clammy.

May Average Humidity in Palmerston

This chart illustrates the average monthly humidity levels in Palmerston, 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 Palmerston is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Palmerston

In Palmerston in May, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Palmerston, you can check the information here.

Maximum UV Index Levels in Palmerston for May

The chart shows the monthly maximum UV Index (UVI) for Palmerston 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 Palmerston typically reaches 3, which falls under the moderate exposure category.

Data source: Palmerston 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 Palmerston Compares to Other Months

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

This table compares monthly weather conditions in Palmerston, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	15°C (59°F)	88 mm (3.5 inches)	79%	extreme
February Weather	15°C (59°F)	97 mm (3.8 inches)	76%	extreme
March Weather	14°C (57°F)	50 mm (2.0 inches)	78%	very high
April Weather	11°C (53°F)	76 mm (3.0 inches)	81%	moderate
May Weather	9°C (49°F)	40 mm (1.6 inches)	84%	moderate
June Weather	7°C (44°F)	37 mm (1.5 inches)	85%	low
July Weather	6°C (43°F)	65 mm (2.6 inches)	85%	low
August Weather	7°C (46°F)	38 mm (1.5 inches)	84%	moderate
September Weather	9°C (48°F)	48 mm (1.9 inches)	83%	moderate
October Weather	10°C (51°F)	77 mm (3.0 inches)	80%	very high
November Weather	12°C (55°F)	90 mm (3.5 inches)	78%	very high
December Weather	14°C (58°F)	97 mm (3.8 inches)	81%	extreme