Siwa Rainfall & Precipitation: Monthly Averages and Year-Round Insights
This page shows both the average monthly rainfall and the number of rainy days in Siwa, Matruh , Egypt. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Now, let’s break down all the details for a clearer picture.
Siwa sits in an arid zone with minimal moisture, averaging 13 mm of rainfall per year.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm)
Year-round, Siwa has a balanced climate with minimal variation in precipitation. The difference between the wettest month, February, with 3.7 mm, and the driest month, July, with 0 mm, is minimal.
February, the wettest month, has a maximum daytime temperature of 21°C. The city receives 248 hours of sunshine in this period. During the driest month July you can expect a temperature of 38°C. For more detailed insights into the city’s temperatures, visit our Siwa Temperature page.
Annual Precipitation in Egypt
The map below shows the annual precipitation across Egypt. You can also select the different months in case you are interested in a specific month.





Amsterdam Precipitation Compared World Wide
Siwa’s average annual precipitation is 13 mm. Let’s compare this to some popular worldwide tourist destinations:
In Toronto, Canada, annual precipitation averages [964 mm], with snowy winters and rainy summers.
In Shanghai, China, the annual average precipitation is 1347 mm, with a humid subtropical climate.
Melbourne, Australia, has 690 mm of rainfall annually, spread fairly evenly throughout the year.
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 Siwa’s weather, including sunshine hours, humidity levels, and temperature data, visit our Siwa Climate page.