Penzance Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Penzance, Cornwall, United Kingdom. Long-term data from 1990 to 2020 was used to calculate these averages. Now, let's explore all the details to give you a full picture.
Penzance is known for its substantial rainfall, with annual precipitation reaching 1003 mm (39 in).
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The amount of precipitation varies moderately throughout the year. The wettest month, November, sees around 115 mm (4.5 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, June, still receives a respectable 61 mm (2.4 in) of rainfall.
November, the wettest month, has a maximum daytime temperature of 13°C (55°F). The city receives 81 hours of sunshine in this period. During the driest month June you can expect a temperature of 17°C (63°F). For more detailed insights into the city's temperatures, visit our Penzance Temperature page.
Annual Rainfall in the United Kingdom: City Comparison
The map below shows the annual precipitation across the United Kingdom. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Penzance vs World: Rainfall Compared
Penzance's average annual precipitation is 1003 mm (39 in). Let's compare this to some popular worldwide tourist destinations:
The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm (18 in) of rainfall mostly during the winter months.
Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.
In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.
Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.
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.
Climate change is affecting precipitation patterns worldwide, including Penzance:
- Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
- Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.
- The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
- Approximately 70% of lightning bolts strike land rather than oceans.
- A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.
For more detailed information about Penzance's weather, including sunshine hours, humidity levels, and temperature data, visit our Penzance Climate page.
