Grimstad Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Grimstad, Aust-Agder, Norway. These averages rely on historical data collected over 30 years, from 1990 to 2020. Let's explore the details to provide you with a complete overview.
Grimstad experiences significant rain/snowfall throughout the year, averaging 1178 mm (46 in) of precipitation annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Grimstad offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between October (126 mm (5 in)) and April (66 mm (2.6 in)) is not too significant, making the climate enjoyable for visitors and residents alike.
October, the wettest month, has a maximum daytime temperature of 12°C (54°F). The city receives 94 hours of sunshine in this period. During the driest month April you can expect a temperature of 11°C (52°F). For more detailed insights into the city's temperatures, visit our Grimstad Temperature page.
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
Grimstad vs World: Rainfall Compared
Grimstad's average annual precipitation is 1178 mm (46 in). Let's compare this to some popular worldwide tourist destinations:
Chicago, USA, sees an annual precipitation of 1062 mm (42 in), with rain and snow contributing to its humid climate.
Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.
Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.
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.
Tropical Rainforests: In tropical regions, rainfall is generally abundant year-round. Areas near the equator, like the Amazon rainforest, can receive up to 3000 mm (118 in) of rain annually.
Desert Regions: Deserts such as the Sahara and Arabian deserts typically see less than 250 mm (9.8 in) of rainfall annually. Rainfall tends to be infrequent, but when it does occur, it is often intense.
Temperate Zones: In temperate regions, precipitation tends to be more evenly distributed, though areas closer to the ocean may see more rain in the winter months, and areas further inland experience drier summers.
Polar Regions: Precipitation in polar regions, like Antarctica, is extremely low, often falling as snow. Average annual precipitation in Antarctica is less than 200 mm (7.9 in), with some areas receiving as little as 50 mm (2 in) annually.
- 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 Grimstad's weather, including sunshine hours, humidity levels, and temperature data, visit our Grimstad Climate page.
