Is Santo Domingo sunnier than Port-au-Prince?

Port-au-Prince is the sunnier: about 3,150 hours of sunshine a year versus 2,867 — a difference of 283 hours.

Which is warmer, Santo Domingo or Port-au-Prince?

Year-round daytime highs are similar: Santo Domingo averages 31°C (88°F), Port-au-Prince 32°C (90°F).

Which is better in winter (November–February), Santo Domingo or Port-au-Prince?

Port-au-Prince scores better across November–February: 92/100 average versus 88, with daytime highs around 31°C.

Which has the warmer sea, Santo Domingo or Port-au-Prince?

Port-au-Prince — its sea peaks at about 32°C (90°F) versus 31°C.

Santo Domingo vs Port-au-Prince: which is sunnier?

🇩🇴 Dominican Republic vs 🇭🇹 Haiti · 277 km apart · long-term climate normals (NASA POWER, 2001–2020)

Port-au-Prince is the sunnier overall: about 3,150 hours of sunshine a year to Santo Domingo's 2,867. Port-au-Prince has the higher Sunshine Score in 6 of 12 months, Santo Domingo in 4 (2 within 2 points).

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

Santo Domingo, Dominican Republic — Santo Domingo

At a glance

	Santo Domingo	Port-au-Prince
Sunshine hours / year	2,867	3,150
Sunniest month	February (92/100)	February (95/100)
Nov–Feb average score	88/100	92/100
Jun–Aug average score	85/100	74/100
Rain / year	604 mm	509 mm
Warmest sea	31°C / 88°F	32°C / 90°F
Peak midday UV	11 (extreme)	12 (extreme)

Santo Domingo vs Port-au-Prince month by month

Month	Sunshine Score		Day high °C		Rain mm		Sea °C
Month	Santo Domingo	Port-au-Prince	Santo Domingo	Port-au-Prince	Santo Domingo	Port-au-Prince	Santo Domingo	Port-au-Prince
January	90	94	29°	31°	31	19	28°	29°
February	92	95	30°	31°	24	16	27°	28°
March	92	93	31°	31°	22	24	28°	29°
April	88	91	31°	32°	41	37	28°	30°
May	83	86	31°	32°	72	62	29°	30°
June	87	81	31°	33°	48	41	30°	30°
July	85	73	32°	34°	58	38	30°	31°
August	84	69	32°	34°	64	64	30°	31°
September	84	80	32°	33°	67	49	31°	32°
October	85	84	31°	32°	61	75	31°	32°
November	83	87	30°	31°	73	56	29°	30°
December	88	93	30°	31°	43	28	29°	29°

The sunnier month by month: Jan Port-au-Prince · Feb Port-au-Prince · Mar even · Apr Port-au-Prince · May Port-au-Prince · Jun Santo Domingo · Jul Santo Domingo · Aug Santo Domingo · Sep Santo Domingo · Oct even · Nov Port-au-Prince · Dec Port-au-Prince.

When to pick which

November–February: Port-au-Prince (average score 92/100 vs 88). Daytime highs are similar (30°C vs 31°C). See the winter sun ranking.
March–May: too close to call — Santo Domingo averages 88/100, Port-au-Prince 90/100. Daytime highs are similar (31°C vs 32°C).
June–August: Santo Domingo (average score 85/100 vs 74). Port-au-Prince is the warmer, around 34°C daytime highs vs 32°C.
September–October: Santo Domingo (average score 85/100 vs 82). Daytime highs are similar (32°C vs 33°C).

Sea temperature

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

Full month-by-month guides: Santo Domingo weather by month · Port-au-Prince weather by month · Best time to visit Dominican Republic.

More comparisons: Santo Domingo vs Puerto Plata · Santo Domingo vs Punta Cana · Port-au-Prince vs Kingston · Port-au-Prince vs Cap Haitien · Port-au-Prince vs Puerto Plata · all head-to-heads