Otinshi Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Otinshi, Greater Accra, Ghana. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Now, let's break down all the details for a clearer picture.
Generally, Otinshi experiences moderate precipitation patterns, averaging 702 mm (28 in) yearly. However, this average masks significant seasonal variation, including a distinct dry season during certain months that are clearly visible in our monthly breakdown below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The climate in Otinshi shows significant variation throughout the year. Expect 174 mm (6.9 in) of precipitation during the wettest month June, distributed over 20 rainy days.
In contrast, January offers drier and sunnier days, with around 15 mm (0.6 in) of rainfall over 5 rainy days.
June, the wettest month, has a maximum daytime temperature of 29°C (84°F). The city receives 138 hours of sunshine in this period. During the driest month January you can expect a temperature of 31°C (88°F). For more detailed insights into the city's temperatures, visit our Otinshi Temperature page.
Daily Historical Precipitation
40-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Explore Otinshi's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Otinshi spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Ghana: City Comparison
The map below shows the annual precipitation across Ghana. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Otinshi vs World: Rainfall Compared
Otinshi's average annual precipitation is 702 mm (28 in). Let's compare this to some popular worldwide tourist destinations:
In Lisbon, Portugal, the average annual precipitation is 774 mm (30 in), characterized by wet winters and dry summers typical of the Mediterranean climate.
Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.
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.
Precipitation has a very strong role in determining the local climate and ecosystem:
- 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 Otinshi's weather, including sunshine hours, humidity levels, and temperature data, visit our Otinshi Climate page.
