September
Best time
21.8°C / 16.3°C
12 rain days
mild, rainy
- comfortable temperatures (avg high 21.8°C / 71°F)
- warm evenings without humidity overload
Best time to visit Hakodate
Hakodate, Japan — ranked month by month from data: temperature, rainfall, snow, and peak hazard seasons. The standouts: September, June, July.
Best months to visit
June
Best time
18.7°C / 13.3°C
13 rain days
mild, rainy
- comfortable temperatures (avg high 18.7°C / 66°F)
July
Best time
23°C / 18.4°C
13 rain days
warm, rainy
- comfortable temperatures (avg high 23°C / 73°F)
- warm evenings without humidity overload
August
Best time
24.5°C / 19.9°C
14 rain days
warm, rainy
- comfortable temperatures (avg high 24.5°C / 76°F)
- warm evenings without humidity overload
May
Best time
15.8°C / 8.9°C
12 rain days
cool, rainy
October
Best time
15.8°C / 9.5°C
12 rain days
cool, rainy
OK — shoulder months
April
OK
10.8°C / 3.5°C
11 rain days
cool, rainy
November
OK
9.3°C / 3.3°C
12 rain days
chilly, rainy
March
OK
6.1°C / -0.7°C
12 rain days
chilly, freezing nights, rainy
Months to skip
December
Skip
2.3°C / -3.3°C
12 rain days
cold, freezing nights, rainy
- freezing at night (-3.3°C)
February
Skip
0.5°C / -5.9°C
9 rain days
cold, freezing nights
- bitterly cold (overnight -5.9°C)
January
Skip
0°C / -6.2°C
11 rain days
cold, freezing nights, rainy
- bitterly cold (overnight -6.2°C)
How we ranked these
Each month is scored on temperature comfort (18–27°C avg high is the sweet spot), rainfall (more rain days = lower score), snow days, and peak hazard seasons (hurricanes, monsoons, etc.). Green-tier months are within ideal range with no major issues. Yellow are workable but with trade-offs. Red has at least one significant problem — extreme heat or cold, heavy rain, or peak storm season.
🇯🇵 Japanese survival phrases
The 16 phrases that will earn you smiles, food, and help when you need it. English-speaking travellers — start with the first 4 and add the rest as needed.
Hello
こんにちは
konnichiwa
Thank you
ありがとう
arigatou
Please
お願いします
onegaishimasu
Yes / No
はい / いいえ
hai / iie
Excuse me
すみません
sumimasen
Do you speak English?
英語を話せますか
eigo o hanasemasu ka
I don't understand
分かりません
wakarimasen
How much?
いくらですか
ikura desu ka
The bill, please
お会計お願いします
okaikei onegaishimasu
Water
水
mizu
Where is…?
…はどこですか
wa doko desu ka
Bathroom
トイレ
toire
Help!
助けて
tasukete
Call the police
警察を呼んでください
keisatsu o yonde kudasai
I need a doctor
医者が必要です
isha ga hitsuyou desu
I'm allergic to…
…にアレルギーがあります
ni arerugii ga arimasu
Pronunciations are rough English approximations — they'll get you understood, even if your tones aren't perfect.