Sandnes Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Sandnes, Rogaland, Norway. Long-term data from 1990 to 2020 was used to calculate these averages. Now, let's break down all the details for a clearer picture.
Sandnes is known for its substantial rain/snowfall, with annual precipitation reaching 1945 mm (77 in). While the overall climate is wet, there are notable seasonal patterns that create interesting contrasts, as demonstrated in our graph below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Sandnes can be quite wet during October, receiving approximately 229 mm (9 in) of precipitation over 24 rainy days.
In contrast May, experiences much drier conditions, with 91 mm (3.6 in) of rainfall, spread across 17 rainy days.
October, the wettest month, has a maximum daytime temperature of 12°C (54°F). The city receives 81 hours of sunshine in this period. During the driest month May you can expect a temperature of 13°C (55°F). For more detailed insights into the city's temperatures, visit our Sandnes Temperature page.
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Explore Sandnes's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Sandnes spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Norway: City Comparison
The map below shows the annual precipitation across Norway. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Sandnes vs World: Rainfall Compared
Sandnes's average annual precipitation is 1945 mm (77 in). Let's compare this to some popular worldwide tourist destinations:
In Toronto, Canada, annual precipitation averages 964 mm (38 in), with snowy winters and rainy summers.
Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.
Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.
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.
- "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
- The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm (15 inches) wide and 20 cm (7.9 inches) thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
- The greatest snowfall recorded was on Mt. Rainier, Washington State, USA—over 31.5 meters (103 feet) fell during the winter of 1972.
For more detailed information about Sandnes's weather, including sunshine hours, humidity levels, and temperature data, visit our Sandnes Climate page.
