Is Wellington sunnier than Blenheim?

They are nearly tied: Wellington gets about 2,510 hours of sunshine a year and Blenheim about 2,486.

Which is warmer, Wellington or Blenheim?

Blenheim is warmer across the year: average daytime highs of 18°C (64°F) versus 15°C.

Which is better in winter (November–February), Wellington or Blenheim?

Blenheim scores better across November–February: 81/100 average versus 71, with daytime highs around 22°C.

Wellington vs Blenheim: which is sunnier?

🇳🇿 New Zealand vs 🇳🇿 New Zealand · 81 km apart · long-term climate normals (NASA POWER, 2001–2020)

Wellington and Blenheim are virtually tied for annual sunshine — about 2,510 vs 2,486 hours a year. Blenheim has the higher Sunshine Score in 8 of 12 months, Wellington in 2 (2 within 2 points).

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

At a glance

	Wellington	Blenheim
Sunshine hours / year	2,510	2,486
Sunniest month	February (83/100)	February (84/100)
Nov–Feb average score	71/100	81/100
Jun–Aug average score	28/100	24/100
Rain / year	857 mm	803 mm
Peak midday UV	10 (very high)	9 (very high)

Wellington vs Blenheim month by month

Month	Sunshine Score		Day high °C		Rain mm
Month	Wellington	Blenheim	Wellington	Blenheim	Wellington	Blenheim
January	77	83	19°	24°	51	55
February	83	84	20°	24°	58	51
March	69	83	18°	22°	58	56
April	54	67	16°	18°	70	73
May	39	46	14°	15°	80	76
June	32	26	13°	12°	92	86
July	26	20	12°	11°	86	74
August	26	27	12°	12°	82	68
September	34	48	13°	15°	70	64
October	40	60	14°	17°	77	73
November	55	76	16°	19°	64	55
December	67	80	18°	22°	69	72

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

When to pick which

November–February: Blenheim (average score 81/100 vs 71). Blenheim is the warmer, around 22°C daytime highs vs 18°C.
March–May: Blenheim (average score 65/100 vs 54). Blenheim is the warmer, around 18°C daytime highs vs 16°C.
June–August: Wellington (average score 28/100 vs 24). Daytime highs are similar (12°C vs 12°C).
September–October: Blenheim (average score 54/100 vs 37). Blenheim is the warmer, around 16°C daytime highs vs 14°C.

Full month-by-month guides: Wellington weather by month · Blenheim weather by month · Best time to visit New Zealand.

More comparisons: Wellington vs Christchurch · Wellington vs Palmerston North · Wellington vs New Plymouth · Blenheim vs Christchurch · Blenheim vs Dunedin · Blenheim vs Palmerston North · all head-to-heads