Weather in Iwaki

• All Year
• Spring
• Summer
• Autumn
• Winter

Yearly weather

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

Temperatures

• Iwaki experiences cold winters with temperatures occasionally dropping into the discomfort zone in December, January, and February

• Summers are mild, with July and August seeing temperatures within or close to the comfort zone

• The transition months of May, June, September and October offer pleasant temperatures

• April and November can be somewhat cool but generally mild.

Conditions

• In Iwaki, the trend shows a significant decline in sun hours from mid-summer to early autumn, with the lowest point occurring in September at just 2.7 hours.

• Precipitation levels peak during the same period, particularly in July and September, indicating a pattern of increased rainfall coinciding with reduced sunlight.

• Notably, the months of April and May offer a more balanced climate, featuring relatively higher sun hours and moderate precipitation, making them potentially the most pleasant months of the year.

Astronomy

• In Iwaki, Japan, the earliest sunrise occurs at 04:16 in June, while the latest sunrise takes place at 06:47 in January.

• The city experiences the shortest day length of 9 hours and 39 minutes in December and the longest day length of 14 hours and 40 minutes in June, highlighting a significant variation in daylight throughout the year.

• Additionally, the earliest sunset happens at 16:21 in December, while the latest sunset is at 18:57 in June, further illustrating the seasonal shifts in daylight hours.