Blenheim weather by month & the best time to visit
New Zealand · small town · oceanic / maritime climate
The best time to visit Blenheim is February — its sunniest month (Sunshine Score 84/100), with January and March close behind. Blenheim averages about 2,486 hours of sunshine a year. Daytime highs around 24°C / 75°F and roughly 51 mm of rain in February.
When is the best time to visit Blenheim?
For sunshine, the best time to visit Blenheim is February, then January and March. The dullest month is July (20/100, 74 mm of rain). The full month-by-month picture is in the table below.
How sunny is Blenheim?
Blenheim gets a moderate 2,486 hours of sunshine a year. 64 Sunshine Score points separate February (84) from July (20), so the month you pick matters. It ranks #4 of 26 destinations in New Zealand for annual sunshine, above the national median of 2,342 hours. The year's 803 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 83 | 24° / 75°F | 13° / 55°F | 55 mm | 9 |
| February | 84 | 24° / 75°F | 13° / 55°F | 51 mm | 8 |
| March | 83 | 22° / 72°F | 12° / 54°F | 56 mm | 6 |
| April | 67 | 18° / 64°F | 10° / 50°F | 73 mm | 3 |
| May | 46 | 15° / 59°F | 8° / 46°F | 76 mm | 2 |
| June | 26 | 12° / 54°F | 6° / 43°F | 86 mm | 1 |
| July | 20 | 11° / 52°F | 5° / 41°F | 74 mm | 1 |
| August | 27 | 12° / 54°F | 6° / 43°F | 68 mm | 2 |
| September | 48 | 15° / 59°F | 7° / 45°F | 64 mm | 3 |
| October | 60 | 17° / 63°F | 8° / 46°F | 73 mm | 5 |
| November | 76 | 19° / 66°F | 10° / 50°F | 55 mm | 7 |
| December | 80 | 22° / 72°F | 12° / 54°F | 72 mm | 8 |
Nearest destinations
Head-to-head
How Blenheim compares month by month: Blenheim vs Christchurch · Blenheim vs Wellington · Blenheim vs Dunedin · Blenheim vs Palmerston North · all comparisons
Blenheim: questions and answers
What kind of destination is Blenheim?
Blenheim is a small town in New Zealand with a oceanic / maritime climate.
How many hours of sunshine does Blenheim get a year?
Blenheim gets about 2,486 hours of sunshine a year, at its best around February.
When is the best time to visit Blenheim?
The sunniest time to visit Blenheim is February, when the Sunshine Score peaks at 84/100 (with January and March close behind). Expect daytime highs around 24°C / 75°F.
What is the least sunny month in Blenheim?
July is the least sunny month in Blenheim, scoring 20/100 with about 74 mm of rain.
How strong is the sun in Blenheim?
The typical midday UV index in Blenheim peaks around 9 (very high) in January, easing to about 1 (low) in June. Month-by-month midday UV values are in the UV column of the table on this page.
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