Rolleston Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Rolleston. The numbers are calculated over a 30-year period to provide a reliable average. Let’s explore the details in depth to provide you with a complete overview.

Generally, Rolleston experiences moderate precipitation patterns, averaging 745 mm yearly.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

Precipitation levels in Rolleston remain relatively steady throughout the year. June has the most rain, with 69 mm over 12 days. In March, this drops slightly to 53 mm, making the city's climate fairly predictable.

June, the wettest month, has a maximum daytime temperature of 12°C. The city receives 117 hours of sunshine in this period. During the driest month March you can expect a temperature of 21°C. For more detailed insights into the city’s temperatures, visit our Rolleston Temperature page.

Annual Precipitation in New Zealand

The map below shows the annual precipitation across New Zealand. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Rolleston’s average annual precipitation is 745 mm. Let’s compare this to some popular worldwide tourist destinations:

Seville, Spain, experiences 541 mm of rainfall annually, with wet winters and dry summers typical of southern Spain.

In Seoul, South Korea, the average annual precipitation is 1237 mm, with most rain falling during the summer monsoon season.

Perth, Australia, receives 565 mm of rainfall annually, mostly during the winter months.

Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm of annual rainfall, with the heaviest precipitation occurring during September and October.

How is Precipitation Measured?

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

Sea vs. Land Precipitation

The proximity of a location to a large body of water can significantly affect its rainfall patterns:

• Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
• Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.

For more detailed information about Rolleston’s weather, including sunshine hours, humidity levels, and temperature data, visit our Rolleston Climate page.