Annaka Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Annaka.
Climate overview of Annaka
Annaka, Japan, experiences significant temperature variation throughout the year. Summers bring daytime highs of 29°C (84°F) in August, while winters cool to 6°C (43°F) in January.
With around 1956 mm (77 in) of annual rain/snowfall, Annaka has a notably wet climate. However, this rain/snowfall is not evenly distributed, the city has a distinct rainy season from May to October, with warm summers and cold winters. The wettest month is July. The sunniest month is August, with 6.9 hours of sunshine per day on average.
Annaka Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Annaka - and find the best time to visit.
Monthly Temperature in Annaka
Depending on the time of the year, temperatures range from comfortable to chilly in Annaka. Average daytime temperatures reach a comfortable 29°C (84°F) in August. In January, the coolest month of the year, temperatures drop to a chilly 6°C (43°F).
At night, temperatures range from around 21°C (70°F) in August to -3°C (27°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Annaka
Annaka has a relatively rain/snowy climate with high precipitation levels, averaging 1956 mm (77 in) of rain/snowfall annually. Annaka can be quite wet during July, receiving approximately 276 mm (11 in) of precipitation over 22 rainy days.
In contrast, during the driest month (December), you will experience much drier conditions, with 63 mm (2.5 in) of precipitation spread across 10 rainy days. For more details, please visit our Annaka Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Annaka
Annaka experiences moderate variation in sunshine hours across the seasons. With 6.9 hours daily sunshine in August, it dips to 4.4 hours in June, offering a balanced mix of sunny and overcast days.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Annaka by Month
The relative humidity is high throughout the year in Annaka.
The city experiences its highest humidity in July, reaching 79%. In February, the humidity drops to its lowest level at 60%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Annaka
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May
- Warmest weather: July and August
- Most sunshine: April and August
- Fewest rainy days: January, November and December
- Seasonal pattern: A distinct rainy season from May to October, with warm summers and cold winters
- Coldest conditions: January, with freezing nights around -3°C (27°F).
Frequently asked questions about the climate in Annaka
What is the best time to visit Annaka?
May typically offers the most optimal weather in Annaka. In contrast, January, February, March, July, October and December tend to have less optimal conditions. Annaka has a distinct rainy season from May to October, with warm summers and cold winters.
What temperatures can I expect in Annaka?
Daytime highs range from 6°C (43°F) in January to 29°C (84°F) in August. Nighttime lows range from -3°C (27°F) to 21°C (70°F). Temperatures vary considerably through the year.
How much rain does Annaka get?
Annual rainfall is around 1956 mm (77 in). July is the wettest month with 276 mm (11 in), while December is the driest with 63 mm (2.5 in).
How sunny is Annaka?
Annaka receives around 2,173 hours of sunshine per year. August is the sunniest month with 207 hours, while June is the cloudiest with just 133 hours. Overall, Annaka enjoys abundant sunshine.
Annaka 3-Day Forecast
Annaka on the map
Annaka is highlighted - select any city to see its climate.
Popular this month
Where to go in September - 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
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.
Walk the 88 temple circuit
We recommend walking the 88 temple circuit from April til October. Although June, July and August can be a bit wet, hot and humid.
The famous bamboo forests of Arashiyama
The famous bamboo forests of Arashiyama lie just outside the city center of Kyoto and is unique in the world. If you look at photos of this bamboo forest, it looks like you have landed in a fairy-tale world.
10 reasons why you should visit Japan in winter
Here are 10 reasons why you should plan a winter trip to Japan. During this period, popular sights are less busy and prices for flights and hotels much cheaper.