Half-moon Bay Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Half-moon Bay, Southland, New Zealand. This average is based on long-term data collected between 1990 and 2020. Let's now guide you through the details for a complete overview.

Half-moon Bay has a relatively rainy climate with high precipitation levels, averaging 1364 mm (54 in) of rainfall annually.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

Year-round, Half-moon Bay has a balanced climate with minimal variation in precipitation. The difference between the wettest month, October, with 134 mm (5.3 in), and the driest month, July, with 96 mm (3.8 in), is minimal.

October, the wettest month, has a maximum daytime temperature of 13°C (55°F). The city receives 176 hours of sunshine in this period. During the driest month July you can expect a temperature of 10°C (50°F). For more detailed insights into the city's temperatures, visit our Half-moon Bay Temperature page.

Half-moon Bay's average annual precipitation is 1364 mm (54 in). Let's compare this to some popular worldwide tourist destinations:

The city of Rome, Italy, has an average annual precipitation of 832 mm (33 in), spread fairly evenly throughout the year.

In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.

In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.

Kuala Lumpur, Malaysia, receives 2529 mm (100 in) of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.

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.

• Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
• In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) per year, with some years recording virtually no rainfall.
• Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.

For more detailed information about Half-moon Bay's weather, including sunshine hours, humidity levels, and temperature data, visit our Half-moon Bay Climate page.