Is Rennes sunnier than Brest?

Brest is the sunnier: about 1,927 hours of sunshine a year versus 1,848 — a difference of 79 hours.

Which is warmer, Rennes or Brest?

Rennes is warmer across the year: average daytime highs of 16°C (61°F) versus 14°C.

Which is better in winter (November–February), Rennes or Brest?

They are close in the November–February window: Rennes averages 10/100 (about 10°C days), Brest 12/100 (about 10°C).

Rennes vs Brest: which is sunnier?

🇫🇷 France vs 🇫🇷 France · 203 km apart · long-term climate normals (NASA POWER, 2001–2020)

Brest is the sunnier overall: about 1,927 hours of sunshine a year to Rennes's 1,848. Rennes has the higher Sunshine Score in 6 of 12 months, Brest in 2 (4 within 2 points).

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

At a glance

	Rennes	Brest
Sunshine hours / year	1,848	1,927
Sunniest month	September (82/100)	July (80/100)
Nov–Feb average score	10/100	12/100
Jun–Aug average score	81/100	75/100
Rain / year	707 mm	897 mm
Peak midday UV	6 (high)	6 (high)

Rennes vs Brest month by month

Month	Sunshine Score		Day high °C		Rain mm
Month	Rennes	Brest	Rennes	Brest	Rennes	Brest
January	0	6	8°	9°	69	104
February	7	6	9°	9°	58	87
March	26	19	12°	11°	57	66
April	54	33	16°	13°	46	55
May	72	46	19°	15°	58	56
June	80	67	23°	18°	50	54
July	81	80	24°	20°	48	55
August	81	79	24°	20°	47	59
September	82	75	22°	19°	42	45
October	57	48	17°	16°	75	95
November	25	23	12°	12°	77	111
December	6	12	9°	10°	80	110

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

When to pick which

November–February: too close to call — Rennes averages 10/100, Brest 12/100. Daytime highs are similar (10°C vs 10°C). See the winter sun ranking.
March–May: Rennes (average score 51/100 vs 33). Rennes is the warmer, around 16°C daytime highs vs 13°C.
June–August: Rennes (average score 81/100 vs 75). Rennes is the warmer, around 24°C daytime highs vs 19°C.
September–October: Rennes (average score 70/100 vs 62). Rennes is the warmer, around 20°C daytime highs vs 18°C.

Full month-by-month guides: Rennes weather by month · Brest weather by month · Best time to visit France.

More comparisons: Rennes vs Nantes · Rennes vs Caen · Rennes vs Jersey · Brest vs Jersey · Brest vs Saint Peter Port · all head-to-heads