Weather in Sendai for August 2026
Expect cooler weather in first days of August 2026 in Sendai with the forecast suggesting a temperature of 27.3 °C, lower than the historical average.
In general, the average temperature in Sendai at the beginning of August is 29.6 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 28.4 °C by the end of August.
Sendai experiences heavy rainfall in August, with over 20 rainy days and an average total precipitation 168.5 mm.
Is August a good time to visit Sendai? check out the best time to travel to Sendai page.
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Sendai Weather August
Temperatures trend during August in Sendai
August weather in Sendai day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Partly cloudy | 29° /24° | 1.9 mm | 7 | |
| 2 Aug. |  Mist | 28° /23° | 0.5 mm | 7 | |
| 3 Aug. |  Patchy rain possible | 30° /23° | 1.5 mm | 7 | |
| 4 Aug. | Patchy rain possible | 30° /23° | 2.7 mm | 7 | |
| 5 Aug. | Patchy rain possible | 31° /24° | 0.7 mm | 7 | |
| 6 Aug. | Patchy rain possible | 30° /23° | 18.1 mm | 7 | |
| 7 Aug. | Patchy rain possible | 29° /22° | 9.6 mm | 6 | |
| 8 Aug. |  Patchy light drizzle | 30° /22° | 0.5 mm | 7 | |
| 9 Aug. | Patchy rain possible | 30° /21° | 1.4 mm | 7 | |
| 10 Aug. | Patchy rain possible | 27° /22° | 5.2 mm | 6 | |
| 11 Aug. | Light rain shower | 28° /22° | 12.8 mm | 6 | |
| 12 Aug. | Light rain shower | 25° /22° | 34.6 mm | 6 | |
| 13 Aug. | Patchy light drizzle | 29° /22° | 1.3 mm | 7 | |
| 14 Aug. |  Moderate or heavy rain shower | 29° /23° | 7.2 mm | 7 | |
| 15 Aug. | Light rain shower | 30° /22° | 4.3 mm | 7 | |
| 16 Aug. | Light rain shower | 28° /23° | 2.4 mm | 6 | |
| 17 Aug. | Light rain shower | 30° /22° | 5.2 mm | 7 | |
| 18 Aug. | Patchy rain possible | 29° /23° | 0.4 mm | 7 | |
| 19 Aug. | Patchy rain possible | 30° /23° | 0.5 mm | 7 | |
| 20 Aug. | Patchy rain possible | 30° /22° | 0.2 mm | 7 | |
| 21 Aug. | Patchy rain possible | 28° /22° | 0.8 mm | 6 | |
| 22 Aug. | Patchy rain possible | 27° /22° | 1.9 mm | 6 | |
| 23 Aug. | Light rain shower | 31° /23° | 4.3 mm | 7 | |
| 24 Aug. | Light rain shower | 33° /23° | 2.9 mm | 7 | |
| 25 Aug. | Light rain shower | 25° /22° | 10.2 mm | 6 | |
| 26 Aug. | Light rain | 29° /23° | 5.4 mm | 7 | |
| 27 Aug. | Patchy rain possible | 31° /23° | 2.1 mm | 7 | |
| 28 Aug. | Light rain shower | 29° /22° | 2.8 mm | 7 | |
| 29 Aug. | Patchy light drizzle | 29° /22° | 1.3 mm | 6 | |
| 30 Aug. | Light rain shower | 28° /22° | 20 mm | 6 | |
| 31 Aug. | Light rain shower | 28° /23° | 2.3 mm | 7 | |
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Sendai weather in August vs July vs September
| July | August | September | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 28°/21° | 29°/23° | 25°/20° |
| Rainfall | 109 mm | 168 mm | 112 mm |
| Wind | 13.7 km/h | 15.8 km/h | 14 km/h |
| Humidity | 80% | 80% | 79% |
| Rainy days | 21 days | 23 days | 21 days |
| Dry days | 10 days | 8 days | 9 days |
Planning a trip to Sendai? Discover the best time to visit
Sendai in August - FAQ
What are the expected maximum and minimum temperatures in Sendai during August?
How much rainfall should be expected in Sendai during August?
What are the typical wind conditions in Sendai during August?
August rainfall patterns in Sendai
UV exposure in Sendai during August
What to pack to Sendai in August?
Warm & sunny · highs around 29 °C, frequent showers
As you prepare for your trip to Sendai in August, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Sendai, during August, is comfortable and enjoyable, regardless of the weather conditions.
🧥 Clothing
👟 Footwear
🎒 Accessories
🧴 Personal Items
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Where is Sendai?Get accurate weather forecasts for Sendai, located at latitude 38.267 and longitude 140.867. Stay updated with localized weather information tailored for Sendai.