Last updated: August 31, 2025
In May, the average temperature in Rolleston, New Zealand is a mild 10°C (50°F). Expect temperatures to range from a chilly -1°C (31°F) to a pleasant 23°C (74°F). During this period, you'll encounter about 56 mm (2.2 in) of precipitation spread over 8 days, contributing to an average humidity of a humid 87%. Stay prepared for varying weather conditions!
In May in Rolleston, the average temperature is 10°C (50°F), with maximums reaching up to 23°C (74°F) and minimums dropping as low as -1°C (31°F). This variation in temperature makes it essential for travelers to pack layered clothing to stay comfortable throughout the day.
In Rolleston in May, the precipitation amount is 56 mm (2.2 in) over the course of 8 days.
In Rolleston in May humidity is 87%. With an average temperature of 10°C (50°F), this humidity feels like a heavy cloak wrapping around you, making every step feel laborious and the air thick with moisture, challenging your comfort while traveling.
In Rolleston 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 Rolleston, you can check the information here.
UV Risk Categories
Weather in Rolleston varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Rolleston, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 18°C (64°F) | 48 mm (1.9 inches) | 81% | extreme |
| February Weather | 18°C (64°F) | 40 mm (1.6 inches) | 79% | extreme |
| March Weather | 16°C (60°F) | 53 mm (2.1 inches) | 81% | very high |
| April Weather | 13°C (55°F) | 69 mm (2.7 inches) | 84% | high |
| May Weather | 10°C (50°F) | 56 mm (2.2 inches) | 87% | moderate |
| June Weather | 7°C (46°F) | 61 mm (2.4 inches) | 87% | low |
| July Weather | 7°C (45°F) | 72 mm (2.8 inches) | 87% | low |
| August Weather | 8°C (47°F) | 50 mm (2.0 inches) | 85% | moderate |
| September Weather | 10°C (50°F) | 53 mm (2.1 inches) | 85% | moderate |
| October Weather | 12°C (54°F) | 63 mm (2.5 inches) | 84% | very high |
| November Weather | 15°C (58°F) | 75 mm (2.9 inches) | 82% | very high |
| December Weather | 16°C (62°F) | 77 mm (3.0 inches) | 84% | extreme |