Okayama vs Takamatsu: which is sunnier?
🇯🇵 Japan vs 🇯🇵 Japan · 62 km apart · long-term climate normals (NASA POWER, 2001–2020)
Okayama and Takamatsu are virtually tied for annual sunshine — about 1,914 vs 1,982 hours a year. Takamatsu has the higher Sunshine Score in 4 of 12 months, Okayama in 3 (5 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.

At a glance
| Okayama | Takamatsu | |
|---|---|---|
| Sunshine hours / year | 1,914 | 1,982 |
| Sunniest month | August (68/100) | May (63/100) |
| Nov–Feb average score | 9/100 | 17/100 |
| Jun–Aug average score | 64/100 | 63/100 |
| Rain / year | 1,487 mm | 1,866 mm |
| Peak midday UV | 8 (very high) | 8 (very high) |
Okayama vs Takamatsu month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Okayama | Takamatsu | Okayama | Takamatsu | Okayama | Takamatsu | |
| January | 0 | 0 | 5° | 8° | 86 | 59 |
| February | 0 | 6 | 7° | 9° | 81 | 86 |
| March | 18 | 29 | 11° | 13° | 103 | 119 |
| April | 53 | 54 | 17° | 18° | 105 | 137 |
| May | 67 | 63 | 23° | 23° | 122 | 176 |
| June | 62 | 63 | 26° | 26° | 172 | 253 |
| July | 62 | 63 | 29° | 29° | 212 | 264 |
| August | 68 | 63 | 30° | 30° | 120 | 197 |
| September | 62 | 63 | 26° | 27° | 179 | 245 |
| October | 67 | 63 | 20° | 22° | 122 | 166 |
| November | 37 | 50 | 14° | 16° | 83 | 87 |
| December | 0 | 13 | 8° | 10° | 102 | 77 |
The sunnier month by month: Jan even · Feb Takamatsu · Mar Takamatsu · Apr even · May Okayama · Jun even · Jul even · Aug Okayama · Sep even · Oct Okayama · Nov Takamatsu · Dec Takamatsu.
When to pick which
- November–February: Takamatsu (average score 17/100 vs 9). Takamatsu is the warmer, around 11°C daytime highs vs 9°C. See the winter sun ranking.
- March–May: Takamatsu (average score 49/100 vs 46). Daytime highs are similar (17°C vs 18°C).
- June–August: too close to call — Okayama averages 64/100, Takamatsu 63/100. Daytime highs are similar (28°C vs 28°C).
- September–October: too close to call — Okayama averages 65/100, Takamatsu 63/100. Takamatsu is the warmer, around 25°C daytime highs vs 23°C.
Full month-by-month guides: Okayama weather by month · Takamatsu weather by month · Best time to visit Japan.
More comparisons: Okayama vs Hiroshima · Okayama vs Tottori · Okayama vs Izumo · Takamatsu vs Osaka · Takamatsu vs Kobe · Takamatsu vs Tokushima · all head-to-heads