Chase the autumn leaves in Japan
Japan is one of these cases which turns into a gold, yellow and orange fairy tale starting from September. And we can honestly say: We cannot imagine a more beautiful season to visit Japan.
Iwanai Weather in August
Iwanai in August sees high temperatures, with highs around 25°C (77°F) and overnight lows of 18°C (64°F). Rainfall is at its peak this month, around 171 mm (6.7 in) on average, so waterproofs are essential.
Rainfall in Iwanai in August
This month is known for its intense rain, often falling heavily. Having a poncho will help you stay dry during the showers. Historically, the month has about 18 days of rain, averaging 171 mm (6.7 in) in total. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.
Temperature in Iwanai in August
In August, expect high temperatures in Iwanai, with highs of 25°C (77°F) and lows of 18°C (64°F) at night. The month of August belongs to the summer season. Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 18°C (64°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping. On average, it has the peak temperatures of the year.
Sunshine in Iwanai in August
The city usually sees around 172 hours of sunlight, indicating a moderately sunny period.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Iwanai Temperature in August
Min Temperature
18°C (64°F)
Max Temperature
25°C (77°F)
Chance of Rain
61%
Precipitation
171 mm (6.7 in)
Rainy days
18 days
Humidity
75% *
Sunshine
172 hours *
Percentage Sunshine
*
* Data from: Sapporo, Japan (69 KM, 43 Miles).
Iwanai Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Iwanai - and find the best time to visit.
Best Places in Japan in August
Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in August →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Iwanai in August
Pleasant temperatures in August mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Iwanai in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming7/10 -
Camping6/10
Iwanai 3-Day Forecast
More climate data for Iwanai
Temperature Rainfall Sunshine Humidity
See the full Iwanai climate overview or explore weather in Japan.
Popular in August
Where to go in August - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Chase the autumn leaves in Japan
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