Is Surabaya sunnier than Yogyakarta?

They are nearly tied: Surabaya gets about 2,492 hours of sunshine a year and Yogyakarta about 2,418.

Which is warmer, Surabaya or Yogyakarta?

Surabaya is warmer across the year: average daytime highs of 32°C (90°F) versus 29°C.

Which is better in winter (November–February), Surabaya or Yogyakarta?

Yogyakarta scores better across November–February: 66/100 average versus 63, with daytime highs around 28°C.

Which has the warmer sea, Surabaya or Yogyakarta?

Surabaya — its sea peaks at about 32°C (90°F) versus 31°C.

Surabaya vs Yogyakarta: which is sunnier?

🇮🇩 Indonesia vs 🇮🇩 Indonesia · 264 km apart · long-term climate normals (NASA POWER, 2001–2020)

Surabaya and Yogyakarta are virtually tied for annual sunshine — about 2,492 vs 2,418 hours a year. Yogyakarta has the higher Sunshine Score in 4 of 12 months, Surabaya 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

	Surabaya	Yogyakarta
Sunshine hours / year	2,492	2,418
Sunniest month	July (87/100)	August (87/100)
Nov–Feb average score	63/100	66/100
Jun–Aug average score	80/100	82/100
Rain / year	1,849 mm	2,162 mm
Warmest sea	32°C / 90°F	31°C / 88°F
Peak midday UV	11 (extreme)	11 (extreme)

Surabaya vs Yogyakarta month by month

Month	Sunshine Score		Day high °C		Rain mm		Sea °C
Month	Surabaya	Yogyakarta	Surabaya	Yogyakarta	Surabaya	Yogyakarta	Surabaya	Yogyakarta
January	66	66	30°	28°	326	346	32°	29°
February	66	66	30°	28°	321	342	31°	31°
March	66	66	30°	29°	280	222	31°	31°
April	66	66	30°	29°	194	191	32°	30°
May	71	66	31°	29°	121	148	31°	27°
June	81	75	31°	28°	69	96	31°	28°
July	87	83	32°	28°	34	55	29°	27°
August	73	87	34°	29°	11	31	29°	25°
September	54	81	36°	30°	17	66	30°	27°
October	50	67	36°	30°	60	140	31°	28°
November	55	66	34°	29°	133	231	32°	30°
December	66	66	31°	28°	283	294	31°	30°

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

When to pick which

November–February: Yogyakarta (average score 66/100 vs 63). Surabaya is the warmer, around 31°C daytime highs vs 28°C.
March–May: too close to call — Surabaya averages 68/100, Yogyakarta 66/100. Daytime highs are similar (30°C vs 29°C).
June–August: too close to call — Surabaya averages 80/100, Yogyakarta 82/100. Surabaya is the warmer, around 32°C daytime highs vs 28°C.
September–October: Yogyakarta (average score 74/100 vs 52). Surabaya is the warmer, around 36°C daytime highs vs 30°C.

Sea temperature

Surabaya's sea gets warmer: 32°C / 90°F at its peak vs 31°C. Swimmable water (21°C+): Surabaya all year, Yogyakarta all year. Month-by-month sea temperatures are in the table above.

Full month-by-month guides: Surabaya weather by month · Yogyakarta weather by month · Best time to visit Indonesia.

More comparisons: Surabaya vs Semarang · Surabaya vs Malang · Surabaya vs Denpasar · Yogyakarta vs Semarang · Yogyakarta vs Malang · Yogyakarta vs Surakarta · all head-to-heads