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.
Jump to: month-by-month table · nearby alternatives · embed this data
- Sun hours / year
- 2,486
- Sunniest month
- February
- Peak score
- 84/100
- Rain / year
- 803 mm
- Midday UV at peak
- 9 (very high)
- Population
- 30k
- Elevation
- 29 m

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 |
See Blenheim on the interactive sunshine globe →
Nearby places for sunshine
- Wellington New Zealand · 81 km · best in Feb · 2,510 h sun/yr
- Palmerston North New Zealand · 198 km · best in Jan · 2,196 h sun/yr
- Christchurch New Zealand · 245 km · best in Feb · 2,377 h sun/yr
- New Plymouth New Zealand · 280 km · best in Jan · 2,321 h sun/yr
- Napier New Zealand · 341 km · best in Feb · 2,256 h sun/yr
- Tauranga New Zealand · 472 km · best in Jan · 2,513 h sun/yr
Nearest destinations
- Picton New Zealand · 20 km · 2,486 h sun/yr · best in Feb
- Nelson New Zealand · 59 km · 2,486 h sun/yr · best in Feb
- Westport New Zealand · 192 km · 2,175 h sun/yr · best in Feb
- Wanganui New Zealand · 198 km · 2,180 h sun/yr · best in Jan
Head-to-head
How Blenheim compares month by month: Blenheim vs Christchurch · Blenheim vs Wellington · Blenheim vs Dunedin · Blenheim vs Palmerston North · all comparisons
Put the Blenheim sunshine badge on your site
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