Sendai in August
In August, Sendai averages 28°C (82°F) during the day and 22°C (71°F) at night, with frequent rain — about 19 days of the month see precipitation (185 mm total).
High seasonConditions are warm and beach-friendly. Expect daily rain or showers, often in heavy bursts.
August offers comfortable temperatures in Sendai, with some rain to plan around.
How August compares to the rest of the year in Sendai
August is one of the warmest months in Sendai (1st of 12) and one of the wettest months (2nd of 12). Daytime temperature runs 11°C above the annual average (17°C). August runs 1°C warmer than July (27°C) and cools 4°C in September (24°C).
August sunrise & sunset in Sendai
Times shown for Sendai local time (Asia/Tokyo), calculated for the 15th of August. They shift by a few minutes day to day across the month.
Photography light in Sendai — August
Golden-hour and blue-hour windows for the 15th of August, in Sendai's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Sendai in August
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on August's tier (High season) and Sendai's popularity.
August in Japan — events that affect travel
Known cultural, religious, or national events that surge prices, fill hotels, or close businesses during this month. Plan around them, or build your itinerary around the ones you'd like to see.
Buddhist festival when most of Japan travels back to family hometowns. Major attractions stay open but city-to-city trains book solid, especially Tokyo → Osaka.
Plan: Reserve Shinkansen seats 1+ month ahead, expect higher hotel prices in countryside, lower in Tokyo/Osaka.
Crowds & pricing — August in Sendai
This is a busy month in Sendai — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.
Why this tier: Northern Hemisphere summer holidays
Sun & mosquito risk — August in Sendai
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Sendai in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 5°C / 40°F | -2°C / 28°F | 64 mm | 12 | — |
| February | 6°C / 43°F | -2°C / 28°F | 61 mm | 10 | — |
| March | 11°C / 51°F | 1°C / 34°F | 100 mm | 10 | — |
| April | 15°C / 60°F | 5°C / 42°F | 104 mm | 10 | — |
| May | 21°C / 69°F | 11°C / 52°F | 100 mm | 11 | — |
| June | 23°C / 74°F | 16°C / 61°F | 146 mm | 16 | — |
| July | 27°C / 80°F | 21°C / 69°F | 197 mm | 19 | — |
| August | 28°C / 82°F | 22°C / 71°F | 185 mm | 19 | — |
| September | 24°C / 76°F | 18°C / 64°F | 177 mm | 15 | — |
| October | 19°C / 65°F | 11°C / 51°F | 150 mm | 11 | — |
| November | 14°C / 56°F | 5°C / 41°F | 64 mm | 10 | — |
| December | 7°C / 45°F | 0°C / 32°F | 68 mm | 13 | — |
Other cities with similar August weather
🌍 See the full ranked list of climate twins for Sendai in August →
Frequently asked questions
How hot is Sendai in August?
In August, Sendai averages a high of 28°C (82°F) and a low of 22°C (71°F) — generally warm.
Does it rain a lot in Sendai in August?
August is quite rainy in Sendai, with about 19 rainy days on average.
Is August a good time to visit Sendai?
August is warm but on the rainy side. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Sendai in August?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full August packing list for Sendai for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.