The climate in Niihama during August can be summarized as hot, humid and wet.
August is in the summer in Niihama and is typically the warmest month of the year. Daytime maximum temperatures average around a steamy 29°C (85°F), whilst at night 22°C (71°F) is normal.
|Daytime temperature||29.4°C 84.8°F|
|Nightly temperature||21.9°C 71.3°F|
|Average temperature||25.6°C 78.1°F|
|Daily sunshine||7.1 hrs|
|Avg rainfall||188 mm 7.4 ins|
|Rainy days||16 days|
|Sea temperature||27.7°C 81.9°F|
|Windspeed||9.4kph 6 mph|
On average August is the 4th wettest month of the year in Niihama with around 188mm 7.4 inches of rain making it a wet time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.1 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Niihama in August 2022.
|Hottest month:||August||29.2°C 84.6°F|
|Driest month:||December||33mm 1.3ins|
|Coldest month:||January||6.9°C 44.4°F|
|Wettest month:||June||291mm 11.5ins|