Is Miyakojima sunnier than Ishigaki?

Miyakojima is the sunnier: about 2,008 hours of sunshine a year versus 1,858 — a difference of 150 hours.

Which is warmer, Miyakojima or Ishigaki?

Year-round daytime highs are similar: Miyakojima averages 25°C (77°F), Ishigaki 25°C (77°F).

Which is better in winter (November–February), Miyakojima or Ishigaki?

They are close in the November–February window: Miyakojima averages 77/100 (about 22°C days), Ishigaki 75/100 (about 22°C).

Which has the warmer sea, Miyakojima or Ishigaki?

Both peak at about 31°C (88°F); month-by-month sea temperatures for both are on this page.

Miyakojima vs Ishigaki: which is sunnier?

🇯🇵 Japan vs 🇯🇵 Japan · 115 km apart · long-term climate normals (NASA POWER, 2001–2020)

Miyakojima is the sunnier overall: about 2,008 hours of sunshine a year to Ishigaki's 1,858. Miyakojima has the higher Sunshine Score in 3 of 12 months; the other 9 are within 2 points.

Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.

At a glance

	Miyakojima	Ishigaki
Sunshine hours / year	2,008	1,858
Sunniest month	February (80/100)	February (77/100)
Nov–Feb average score	77/100	75/100
Jun–Aug average score	65/100	64/100
Rain / year	1,528 mm	1,491 mm
Warmest sea	31°C / 88°F	31°C / 88°F
Peak midday UV	11 (extreme)	11 (extreme)

Miyakojima vs Ishigaki month by month

Month	Sunshine Score		Day high °C		Rain mm		Sea °C
Month	Miyakojima	Ishigaki	Miyakojima	Ishigaki	Miyakojima	Ishigaki	Miyakojima	Ishigaki
January	78	76	20°	21°	68	73	23°	24°
February	80	77	21°	21°	55	69	23°	24°
March	76	75	22°	22°	78	80	23°	23°
April	68	70	23°	24°	120	106	26°	26°
May	63	62	26°	26°	184	161	28°	28°
June	63	62	28°	28°	221	182	29°	29°
July	68	67	29°	29°	124	120	31°	31°
August	63	62	29°	29°	205	199	31°	31°
September	63	62	28°	28°	191	195	31°	30°
October	69	67	26°	27°	117	125	29°	29°
November	74	71	24°	25°	92	99	27°	27°
December	77	74	22°	22°	73	82	23°	25°

The sunnier month by month: Jan even · Feb Miyakojima · Mar even · Apr even · May even · Jun even · Jul even · Aug even · Sep even · Oct even · Nov Miyakojima · Dec Miyakojima.

When to pick which

November–February: too close to call — Miyakojima averages 77/100, Ishigaki 75/100. Daytime highs are similar (22°C vs 22°C). See the winter sun ranking.
March–May: too close to call — Miyakojima averages 69/100, Ishigaki 69/100. Daytime highs are similar (24°C vs 24°C).
June–August: too close to call — Miyakojima averages 65/100, Ishigaki 64/100. Daytime highs are similar (29°C vs 29°C).
September–October: too close to call — Miyakojima averages 66/100, Ishigaki 65/100. Daytime highs are similar (27°C vs 28°C).

Sea temperature

Both seas peak at 31°C / 88°F. Swimmable water (21°C+): Miyakojima all year, Ishigaki all year. Month-by-month sea temperatures are in the table above.

Full month-by-month guides: Miyakojima weather by month · Ishigaki weather by month · Best time to visit Japan.

More comparisons: Miyakojima vs Naha · Miyakojima vs Miyakojima · Ishigaki vs Taoyuan · Ishigaki vs Miyakojima · all head-to-heads