Blenheim in December
7.2out of 10
Possible, with caveats
Mild: highs around 19°C. Frequent rain: about 11 rainy days.
19°CAvg high
12°CAvg low
11Rainy days (72 mm)
15:00 hDaylight
05:51Sunrise · 20:50 Sunset
Why this score
- Mild: highs around 19°C
- Frequent rain: about 11 rainy days
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in December varies a lot between years (±3.5 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 21°C | 13°C | 61 mm | 9 | – | – | 7.8 |
| February | 21°C | 13°C | 51 mm | 6 | – | – | 8.1 |
| March | 19°C | 12°C | 54 mm | 7 | – | – | 7.7 |
| April | 17°C | 9°C | 66 mm | 8 | – | – | 7.2 |
| May | 14°C | 8°C | 63 mm | 8 | – | – | 6.8 |
| June | 12°C | 5°C | 82 mm | 10 | – | – | 6.1 |
| July | 11°C | 5°C | 76 mm | 10 | – | – | 6.0 |
| August | 12°C | 5°C | 74 mm | 11 | – | – | 6.0 |
| September | 14°C | 7°C | 72 mm | 11 | – | – | 6.3 |
| October | 16°C | 8°C | 84 mm | 12 | – | – | 6.5 |
| November | 18°C | 10°C | 73 mm | 10 | – | – | 7.0 |
| December | 19°C | 12°C | 72 mm | 11 | – | – | 7.2 |
Frequently asked questions
How hot is Blenheim in December?
Daytime highs average 19°C and nights about 12°C.
When is the best time to visit Blenheim?
The best months are February, January, March.