Tokyo vs Toyama: which is sunnier?
🇯🇵 Japan vs 🇯🇵 Japan · 264 km apart · long-term climate normals (NASA POWER, 2001–2020)
Tokyo is the sunnier overall: about 1,958 hours of sunshine a year to Toyama's 1,590. Tokyo has the higher Sunshine Score in 11 of 12 months, Toyama in 1.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.


At a glance
| Tokyo | Toyama | |
|---|---|---|
| Sunshine hours / year | 1,958 | 1,590 |
| Sunniest month | August (66/100) | May (66/100) |
| Nov–Feb average score | 24/100 | 9/100 |
| Jun–Aug average score | 64/100 | 60/100 |
| Rain / year | 1,694 mm | 2,012 mm |
| Warmest sea | 28°C / 82°F | 29°C / 84°F |
| Peak midday UV | 7 (high) | 6 (high) |
Tokyo vs Toyama month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Tokyo | Toyama | Tokyo | Toyama | Tokyo | Toyama | Tokyo | Toyama | |
| January | 6 | 0 | 9° | 5° | 80 | 189 | 10° | 13° |
| February | 13 | 0 | 10° | 6° | 75 | 125 | 11° | 12° |
| March | 34 | 11 | 14° | 10° | 124 | 134 | 12° | 10° |
| April | 54 | 48 | 18° | 17° | 135 | 126 | 15° | 13° |
| May | 63 | 66 | 23° | 23° | 148 | 118 | 19° | 16° |
| June | 63 | 60 | 26° | 27° | 185 | 154 | 23° | 22° |
| July | 63 | 60 | 29° | 30° | 153 | 242 | 27° | 25° |
| August | 66 | 60 | 31° | 31° | 134 | 171 | 28° | 29° |
| September | 63 | 60 | 27° | 27° | 211 | 200 | 27° | 29° |
| October | 63 | 60 | 22° | 21° | 246 | 162 | 23° | 24° |
| November | 51 | 35 | 17° | 15° | 120 | 164 | 19° | 19° |
| December | 25 | 0 | 12° | 8° | 83 | 227 | 15° | 16° |
The sunnier month by month: Jan Tokyo · Feb Tokyo · Mar Tokyo · Apr Tokyo · May Toyama · Jun Tokyo · Jul Tokyo · Aug Tokyo · Sep Tokyo · Oct Tokyo · Nov Tokyo · Dec Tokyo.
When to pick which
- November–February: Tokyo (average score 24/100 vs 9). Tokyo is the warmer, around 12°C daytime highs vs 9°C. See the winter sun ranking.
- March–May: Tokyo (average score 50/100 vs 42). Daytime highs are similar (18°C vs 17°C).
- June–August: Tokyo (average score 64/100 vs 60). Daytime highs are similar (29°C vs 29°C).
- September–October: Tokyo (average score 63/100 vs 60). Daytime highs are similar (25°C vs 24°C).
Sea temperature
Toyama's sea gets warmer: 29°C / 84°F at its peak vs 28°C. Swimmable water (21°C+): Tokyo about 5 months a year, Toyama about 5 months a year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Tokyo weather by month · Toyama weather by month · Best time to visit Japan.
More comparisons: Tokyo vs Shizuoka · Tokyo vs Ibaraki · Toyama vs Nagoya · Toyama vs Shizuoka · Toyama vs Niigata · all head-to-heads