Is London sunnier than Southampton?

Southampton is the sunnier: about 1,900 hours of sunshine a year versus 1,592 — a difference of 308 hours.

Which is warmer, London or Southampton?

Year-round daytime highs are similar: London averages 15°C (59°F), Southampton 15°C (59°F).

Which is better in winter (November–February), London or Southampton?

They are close in the November–February window: London averages 5/100 (about 9°C days), Southampton 5/100 (about 9°C).

London vs Southampton: which is sunnier?

🇬🇧 United Kingdom vs 🇬🇧 United Kingdom · 85 km apart · long-term climate normals (NASA POWER, 2001–2020)

Southampton is the sunnier overall: about 1,900 hours of sunshine a year to London's 1,592. Southampton has the higher Sunshine Score in 2 of 12 months; the other 10 are within 2 points.

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

At a glance

	London	Southampton
Sunshine hours / year	1,592	1,900
Sunniest month	September (79/100)	September (81/100)
Nov–Feb average score	5/100	5/100
Jun–Aug average score	76/100	79/100
Rain / year	736 mm	781 mm
Peak midday UV	5 (moderate)	6 (high)

London vs Southampton month by month

Month	Sunshine Score		Day high °C		Rain mm
Month	London	Southampton	London	Southampton	London	Southampton
January	0	0	7°	8°	68	79
February	0	0	8°	8°	56	61
March	13	13	10°	10°	52	57
April	40	40	14°	14°	44	48
May	58	60	17°	17°	57	54
June	77	79	21°	20°	58	56
July	77	79	23°	23°	60	58
August	75	78	23°	23°	67	64
September	79	81	20°	20°	46	46
October	43	49	15°	16°	77	86
November	18	18	11°	11°	77	87
December	0	0	8°	8°	74	85

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

When to pick which

November–February: too close to call — London averages 5/100, Southampton 5/100. Daytime highs are similar (9°C vs 9°C). See the winter sun ranking.
March–May: too close to call — London averages 37/100, Southampton 38/100. Daytime highs are similar (14°C vs 14°C).
June–August: Southampton (average score 79/100 vs 76). Daytime highs are similar (22°C vs 22°C).
September–October: Southampton (average score 65/100 vs 61). Daytime highs are similar (18°C vs 18°C).

Full month-by-month guides: London weather by month · Southampton weather by month · Best time to visit United Kingdom.

More comparisons: London vs London · London vs Bournemouth · London vs Norwich · Southampton vs Bristol · Southampton vs Bournemouth · all head-to-heads