Weather in Niihama in August
Niihama, Japan averages a high of 30.7°C (87.3°F) and low of 25.1°C (77.2°F) in August, with 16 rain days and 10.6 hours of daily sunshine. Travel score: 73.3/100 (Good). The best time to visit Niihama is May.
High
31°C87°F
Low
25°C77°F
🌧️
16
rain days
☀️
10.6
hrs/day sunshine
💧
82%
humidity
73— Good
August in Niihama is hot and rainy — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Niihama?
How much does it rain in Niihama in August?
Niihama receives an average of 184.3mm of rainfall across 16 rainy days in August. The annual total is 1844.9mm.
What should I pack for Niihama in August?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light, breathable clothing
Hot weather with highs around 31°C
🧢
Sun hat or cap
Protection from intense sun
🧥
Waterproof jacket
Frequent rain expected (16 rainy days)
☔
Umbrella
Essential for the rainy season
👢
Waterproof shoes
Keep your feet dry in wet conditions
🧴
Sunscreen SPF 30+
11 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to Japan in August?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31