Is Mombasa sunnier than Arusha?

Mombasa is the sunnier: about 2,799 hours of sunshine a year versus 2,565 — a difference of 234 hours.

Which is warmer, Mombasa or Arusha?

Mombasa is warmer across the year: average daytime highs of 32°C (90°F) versus 30°C.

Which is better in winter (November–February), Mombasa or Arusha?

They are close in the November–February window: Mombasa averages 72/100 (about 34°C days), Arusha 74/100 (about 32°C).

Mombasa vs Arusha: which is sunnier?

🇰🇪 Kenya vs 🇹🇿 Tanzania · 288 km apart · long-term climate normals (NASA POWER, 2001–2020)

Mombasa is the sunnier overall: about 2,799 hours of sunshine a year to Arusha's 2,565. Arusha has the higher Sunshine Score in 7 of 12 months, Mombasa in 2 (3 within 2 points).

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

At a glance

	Mombasa	Arusha
Sunshine hours / year	2,799	2,565
Sunniest month	August (90/100)	July (92/100)
Nov–Feb average score	72/100	74/100
Jun–Aug average score	87/100	91/100
Rain / year	895 mm	870 mm
Peak midday UV	12 (extreme)	13 (extreme)

Mombasa vs Arusha month by month

Month	Sunshine Score		Day high °C		Rain mm
Month	Mombasa	Arusha	Mombasa	Arusha	Mombasa	Arusha
January	73	78	34°	32°	24	88
February	65	73	35°	33°	15	73
March	67	75	34°	32°	62	105
April	72	67	31°	29°	129	147
May	68	77	30°	27°	217	90
June	82	91	29°	27°	74	18
July	89	92	29°	28°	36	9
August	90	91	29°	29°	29	14
September	89	91	31°	31°	38	17
October	78	82	32°	32°	98	66
November	76	70	32°	31°	104	133
December	75	74	33°	31°	69	110

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

When to pick which

November–February: too close to call — Mombasa averages 72/100, Arusha 74/100. Mombasa is the warmer, around 34°C daytime highs vs 32°C.
March–May: Arusha (average score 73/100 vs 69). Mombasa is the warmer, around 32°C daytime highs vs 29°C.
June–August: Arusha (average score 91/100 vs 87). Daytime highs are similar (29°C vs 28°C).
September–October: Arusha (average score 87/100 vs 84). Daytime highs are similar (32°C vs 32°C).

Full month-by-month guides: Mombasa weather by month · Arusha weather by month · Best time to visit Tanzania.

More comparisons: Mombasa vs Dar es Salaam · Mombasa vs Nairobi · Mombasa vs Mogadishu · Arusha vs Dar es Salaam · Arusha vs Nairobi · Arusha vs Kigali · all head-to-heads