Wakayama Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Wakayama, Japan in September.

Thinking about venturing to Wakayama, Japan this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Wakayama in September

Wakayama, Japan is a region in Japan. September in Wakayama generally has warm temperatures, with heavy precipitation. September falls during the summer season.

Temperatures

You can expect warm maximum daytime temperatures of around 28°C (82°F) and nighttime temperatures around 23°C (73°F) in Shirahama.

To learn more about the conditions in specific areas of Wakayama, Japan, check out the map below.

Precipitation

In September, precipitation varies across different areas. From heavy rainfall in Wakayama with an average of 197 mm (7.8 in) to heavy rainfall in Shingu with 352 mm (14 in).

Average sunshine

Sunshine is moderately available across various locations. In Shirahama, you can expect around 162 hours of sunlight in September, which gives a pleasant combination of sun and shade. For those who want maximum sunshine, our weather planner can point you toward the sunniest places on Earth.

Explore Wakayama by month

Best Places to Visit in Wakayama in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Wakayama.

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).

Popular Destinations in Wakayama

What is the weather like in September for some of the most popular destinations in Wakayama, Japan?

Temperature range in Wakayama (September)

Precipitation variation in Wakayama (September)

Shirahama

In September Shirahama generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
30°C (86°F)
28°C (82°F)
23°C (73°F)
Min temperature
25°C (77°F)
23°C (73°F)
18°C (64°F)
Monthly sun hours
228 hours
162 hours
164 hours
Monthly rainfall
180 mm (7.1 in)
252 mm (9.9 in)
231 mm (9.1 in)
Monthly rainy days
17 days
18 days
15 days
Weather conditions

Wakayama

In September Wakayama generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 22°C (72°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

August
September
October
Max temperature
31°C (88°F)
28°C (82°F)
23°C (73°F)
Min temperature
25°C (77°F)
22°C (72°F)
17°C (63°F)
Monthly sun hours
228 hours
162 hours
164 hours
Monthly rainfall
119 mm (4.7 in)
197 mm (7.8 in)
186 mm (7.3 in)
Monthly rainy days
15 days
17 days
14 days
Weather conditions

Koyasan

In September Koyasan generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 19°C (66°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
32°C (90°F)
28°C (82°F)
22°C (72°F)
Min temperature
23°C (73°F)
19°C (66°F)
12°C (54°F)
Monthly sun hours
228 hours
162 hours
164 hours
Monthly rainfall
168 mm (6.6 in)
214 mm (8.4 in)
192 mm (7.6 in)
Monthly rainy days
17 days
18 days
15 days
Weather conditions

Katsuura

In September Katsuura generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
30°C (86°F)
28°C (82°F)
24°C (75°F)
Min temperature
25°C (77°F)
23°C (73°F)
18°C (64°F)
Monthly rainfall
229 mm (9 in)
335 mm (13 in)
302 mm (12 in)
Monthly rainy days
19 days
19 days
16 days
Weather conditions

Tanabe

In September Tanabe generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 22°C (72°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
30°C (86°F)
28°C (82°F)
23°C (73°F)
Min temperature
25°C (77°F)
22°C (72°F)
17°C (63°F)
Monthly sun hours
228 hours
162 hours
164 hours
Monthly rainfall
183 mm (7.2 in)
249 mm (9.8 in)
226 mm (8.9 in)
Monthly rainy days
17 days
18 days
15 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Wakayama, in Japan.

Popular cities in September

Day & night temperatures, rainfall and average weather in Wakayama in September.

City Weather Day temp Night temp Rainfall
Shirahama 28°C (82°F) 23°C (73°F) 252 mm (9.9 in)
Wakayama 28°C (82°F) 22°C (72°F) 197 mm (7.8 in)
Koyasan 28°C (82°F) 19°C (66°F) 214 mm (8.4 in)
Katsuura 28°C (82°F) 23°C (73°F) 335 mm (13 in)
Tanabe 28°C (82°F) 22°C (72°F) 249 mm (9.8 in)
Hongu 27°C (81°F) 20°C (68°F) 298 mm (12 in)

Wakayama weather in September: frequently asked questions

What is the weather like in Wakayama, Japan in September?

In September, Wakayama, Japan generally has unpleasant weather conditions. Shirahama sees daytime temperatures near 28°C (82°F), with nights cooling to roughly 23°C (73°F).

What is the average temperature in Wakayama, Japan in September?

In Shirahama, the average daytime high in September is 28°C (82°F), while nighttime temperatures drop to around 23°C (73°F).

Does Wakayama, Japan get a lot of rain in September?

Yes. September brings heavy rainfall to Wakayama, Japan, with Shirahama averaging around 252 mm (9.9 in). Expect frequent showers and pack accordingly.

Is September a Good Time to Visit Wakayama, Japan?

Given the typically unpleasant weather conditions in Shirahama, September may not be the ideal time to visit Wakayama, Japan.

Generally speaking, April, May and November provide tolerable weather in Shirahama. On the other hand, the months of January, February, June and July tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Wakayama.

Weather and climate has detailed information for every country in the world. Are you going to Japan? Get detailed historical weather averages for many cities in Japan.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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