Visit the Rainbow Mountains
The Rainbow Mountain (Vinicunca) is acolored rainbow mountain that will steal your heart forever and the view from the top will take your breath away.
This page shows both the average monthly rainfall and the number of rainy days in Windwardside, Saba, Bonaire, St Eustatius, Saba. These averages rely on historical data collected over 30 years, from 1990 to 2020. Let's now guide you through the details for a complete overview.
Generally, Windwardside receives mid-range precipitation levels, with 902 mm (36 in) annually. The distribution varies significantly throughout the year, with a distinct dry season during certain months, as shown in our charts below.
Windwardside can be quite wet during September, receiving approximately 135 mm (5.3 in) of precipitation over 18 rainy days.
In contrast March, experiences much drier conditions, with 29 mm (1.1 in) of rainfall, spread across 13 rainy days.
September, the wettest month, has a maximum daytime temperature of 30°C (86°F). During the driest month March you can expect a temperature of 27°C (81°F). For more detailed insights into the city's temperatures, visit our Windwardside Temperature page.
Average daily rainfall for each day of the month based on long-term records. 50-year average (1976-2025)
Browse day-by-day precipitation records for Windwardside spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
The map below shows the annual precipitation across Bonaire, St Eustatius, Saba. You can also select the different months in case you are interested in a specific month.
Windwardside's average annual precipitation is 902 mm (36 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.
Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.
Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.
Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.
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 Windwardside:
For more detailed information about Windwardside's weather, including sunshine hours, humidity levels, and temperature data, visit our Windwardside Climate page.
Pick a month to see the average temperature, rainfall and sunshine in Windwardside - and find the best time to visit.
Temperature Rainfall Humidity
See the full Windwardside climate overview or explore weather in Bonaire, St Eustatius, Saba.
Where to go in October - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Visit the Rainbow Mountains
The Rainbow Mountain (Vinicunca) is acolored rainbow mountain that will steal your heart forever and the view from the top will take your breath away.
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