Weather in Hiroshima

• All Year
• Winter
• Spring
• Summer
• Autumn

Yearly weather

Calculations are based on the last 8 years of historical weather data.

Temperatures

• Hiroshima experiences its highest temperatures in July and August, with maximums reaching 84.5°F and 87.7°F respectively

• The months with the lowest temperatures are December and January, where maximums fall to around 49.7°F and minimums drop to approximately 34.9°F

• Overall, there is a significant seasonal temperature variation, with warmer months offering a stark contrast to the cooler winter periods.

Conditions

• In Hiroshima, the months of May and April experience the highest total sun hours, reaching 7.2h and 6.2h respectively, while December records the least at 3.2h.

• Precipitation levels are relatively low in the winter months, particularly in December and October, with only 0.05in and 0.06in of rain, showcasing a drier trend during this season.

• Interestingly, the late spring and early summer months display a balance of moderate sun hours and slightly increasing precipitation, with June having both 5.1h of sunshine and 0.29in of rain. This pattern indicates a shift towards more varied weather as the year progresses.

Astronomy

• In Hiroshima, sunrise occurs earliest in June at 04:58 and latest in January at 07:15, indicating a significant variation in morning light throughout the year. Conversely, sunsets are latest in June at 19:23 and earliest in December at 17:02, which together with the sunrise data highlights a pronounced seasonal shift.

• The shortest day length is observed in December at just 9 hours and 54 minutes, while the longest day spans 14 hours and 25 minutes in June. This stark contrast emphasizes the impact of seasonal changes on daylight duration, directly influencing daily activities and lifestyle in the city.