Climate normals · 1970–2000
Koga Climate
Koga is a city in Japan (14) with a population of about 139,344. Its average annual temperature is 14.3°C (58°F), with roughly 1283 mm of rain per year.
14.3°C
Avg Temp
1283
Precip (mm/yr)
Aug
Hottest Month
Jan
Coldest Month
Koga Climate
Koga has an average annual temperature of 14.3°C (58°F) and receives about 1283 mm of precipitation per year. The warmest month is August and the coldest is January. Figures are 1970–2000 climate normals.
14.3°C
Avg Temp
1283
Precip (mm/yr)
Aug
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 3° / 38° | 34 mm |
| February | 4° / 39° | 50 mm |
| March | 7° / 45° | 76 mm |
| April | 13° / 55° | 102 mm |
| May | 18° / 64° | 118 mm |
| June | 21° / 70° | 162 mm |
| July | 24° / 76° | 147 mm |
| August | 26° / 79° | 152 mm |
| September | 22° / 72° | 187 mm |
| October | 16° / 62° | 149 mm |
| November | 11° / 51° | 69 mm |
| December | 6° / 42° | 37 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Koga
The most comfortable months to visit Koga are typically June, May and September, when temperatures are mildest and rainfall is relatively low. The hottest month is August (around 30°C high). The coldest is January (near -2°C low). September is usually the wettest month.
Where to stay near Koga
Planning a trip to Koga? Compare hotels and short-term rentals — live availability and prices.
Top-rated places to stay near Koga
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Koga?
Get climate tips and the best lodging deals for Koga by email. No spam, unsubscribe anytime.
Other cities in Japan
Frequently Asked Questions
The most comfortable months to visit Koga are typically June, May and September, when temperatures are mildest and rainfall is relatively low (1970–2000 climate normals).
Koga, Japan has an average annual temperature of 14.3°C and about 1283 mm of precipitation per year. The warmest month is August and the coldest is January.
In August, the hottest month, daily highs in Koga average about 30°C (86°F).
Monthly climate normals (1970–2000) sampled from WorldClim 2.1 at ~9 km resolution. Humidity derived from vapor pressure. City coordinates and population from GeoNames.