Blenheim weather in January
In January, Blenheim sees average daytime highs of 20°C and overnight lows near 13°C, with 60 mm of rain across 8.1 wet days and about 14.7 hours of daylight. It is the 2nd-warmest and 10th-wettest month of the year here.
Day-to-day highs hold fairly steady near 20°C through the month. The sky is clear or mostly clear about 33% of the time in January, and the air most often feels dry.
Daylight stretches from about 15 hours at the start of January to 14 h 12 min by month's end. Set against the rest of the year, January is Blenheim's 9th-clearest and 3rd-windiest month. For the whole year in context, see Blenheim's year-round climate.
- Daytime high
- 20°
- 2nd warmest
- Overnight low
- 13°
- 11th coldest
- Rainfall
- 60 mm
- 8.1 wet days
- Daylight
- 14 h 42 min
- 6:13 AM – 8:54 PM
- Cloud cover
- 57%
- 9th clearest
- Wind
- 15 km/h
- 3rd windiest
- Solar energy
- 7.31 kWh/m²
- Travel score
- 6.6
- out of 10
Blenheim is town in New Zealand.
- Air quality
- Good
- PM10 18.5 µg/m³ · 2012
- Density
- 287/km²
- people per km²
- Founded
- 1850
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in January
Day-to-day highs hold fairly steady near 20°C through the month.
A typical January day in Blenheim reaches about 20°C in the afternoon and slips back to 13°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 24°C. Set against its neighbours, January runs about 2°C warmer than December and on par with February.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Avg low (°C) | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 20 | 12 |
| 2 | 20 | 13 |
| 3 | 20 | 13 |
| 4 | 20 | 13 |
| 5 | 20 | 13 |
| 6 | 20 | 13 |
| 7 | 20 | 13 |
| 8 | 20 | 13 |
| 9 | 20 | 13 |
| 10 | 20 | 13 |
| 11 | 20 | 13 |
| 12 | 20 | 13 |
| 13 | 20 | 13 |
| 14 | 20 | 13 |
| 15 | 20 | 13 |
| 16 | 20 | 13 |
| 17 | 20 | 13 |
| 18 | 20 | 13 |
| 19 | 20 | 13 |
| 20 | 20 | 13 |
| 21 | 20 | 13 |
| 22 | 20 | 13 |
| 23 | 20 | 13 |
| 24 | 20 | 13 |
| 25 | 21 | 13 |
| 26 | 21 | 13 |
| 27 | 21 | 13 |
| 28 | 21 | 13 |
| 29 | 21 | 13 |
| 30 | 21 | 13 |
| 31 | 21 | 13 |
Blenheim weather by month
How January compares with the rest of the year at a glance. January is the 2nd-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 20° / 13° | 60 | 8.1 | 14.7 | 6.6 |
| Feb | 20° / 13° | 53 | 6.3 | 13.7 | 6.9 |
| Mar | 19° / 11° | 53 | 7.1 | 12.3 | 6.6 |
| Apr | 16° / 9° | 67 | 8.2 | 10.9 | 5.5 |
| May | 14° / 7° | 63 | 8.4 | 9.7 | 4.4 |
| Jun | 12° / 5° | 81 | 9.4 | 9.1 | 3.1 |
| Jul | 11° / 5° | 76 | 9.7 | 9.3 | 2.7 |
| Aug | 12° / 5° | 74 | 10.8 | 10.3 | 3.1 |
| Sep | 13° / 7° | 73 | 10.3 | 11.7 | 3.8 |
| Oct | 15° / 8° | 83 | 11.1 | 13.1 | 4.6 |
| Nov | 17° / 10° | 73 | 9.9 | 14.3 | 5.4 |
| Dec | 19° / 12° | 73 | 10.4 | 14.9 | 6.0 |
Cloud cover in January
The sky is clear or mostly clear about 33% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 18% of January, with mostly cloudy or overcast conditions the remaining 50%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 49 | 49 | 49 | 49 | 49 | 49 | 48 | 49 | 49 | 50 | 50 | 50 | 51 | 51 | 51 | 51 | 51 | 52 | 52 | 52 | 53 | 52 | 52 | 52 | 51 | 51 | 50 | 50 | 50 | 50 | 51 |
| Cloudier (%) | 51 | 51 | 51 | 51 | 51 | 51 | 52 | 51 | 51 | 50 | 50 | 50 | 49 | 49 | 49 | 49 | 49 | 48 | 48 | 48 | 47 | 48 | 48 | 48 | 49 | 49 | 50 | 50 | 50 | 50 | 49 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 49 | 51 |
| 2 | 49 | 51 |
| 3 | 49 | 51 |
| 4 | 49 | 51 |
| 5 | 49 | 51 |
| 6 | 49 | 51 |
| 7 | 48 | 52 |
| 8 | 49 | 51 |
| 9 | 49 | 51 |
| 10 | 50 | 50 |
| 11 | 50 | 50 |
| 12 | 50 | 50 |
| 13 | 51 | 49 |
| 14 | 51 | 49 |
| 15 | 51 | 49 |
| 16 | 51 | 49 |
| 17 | 51 | 49 |
| 18 | 52 | 48 |
| 19 | 52 | 48 |
| 20 | 52 | 48 |
| 21 | 53 | 47 |
| 22 | 52 | 48 |
| 23 | 52 | 48 |
| 24 | 52 | 48 |
| 25 | 51 | 49 |
| 26 | 51 | 49 |
| 27 | 50 | 50 |
| 28 | 50 | 50 |
| 29 | 50 | 50 |
| 30 | 50 | 50 |
| 31 | 51 | 49 |
Chance of precipitation in January
Blenheim gets around 60 mm of rain over 8.1 wet days in January. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 27% and peaks near 30% on the wettest days. The odds ease toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 22 | 22 |
| Rain chance (%) | |
|---|---|
| 1 | 30 |
| 2 | 30 |
| 3 | 29 |
| 4 | 29 |
| 5 | 29 |
| 6 | 29 |
| 7 | 29 |
| 8 | 29 |
| 9 | 29 |
| 10 | 29 |
| 11 | 29 |
| 12 | 29 |
| 13 | 28 |
| 14 | 28 |
| 15 | 28 |
| 16 | 27 |
| 17 | 27 |
| 18 | 26 |
| 19 | 26 |
| 20 | 26 |
| 21 | 25 |
| 22 | 25 |
| 23 | 24 |
| 24 | 24 |
| 25 | 24 |
| 26 | 24 |
| 27 | 23 |
| 28 | 23 |
| 29 | 23 |
| 30 | 22 |
| 31 | 22 |
Humidity in January
Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the dry band about 64% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 71 | 70 | 70 | 69 | 69 | 68 | 68 | 68 | 68 | 68 | 68 | 67 | 66 | 66 | 66 | 64 | 64 | 63 | 62 | 61 | 61 | 59 | 59 | 58 | 57 | 57 | 57 | 57 | 57 | 58 | 58 |
| Comfortable (%) | 26 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 30 | 30 | 30 | 31 | 31 | 31 | 32 | 32 | 33 | 33 | 33 | 33 | 33 | 33 | 32 | 32 |
| Humid (%) | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Dry (%) | Comfortable (%) | Humid (%) | |
|---|---|---|---|
| 1 | 71 | 26 | 3 |
| 2 | 70 | 27 | 3 |
| 3 | 70 | 27 | 3 |
| 4 | 69 | 28 | 3 |
| 5 | 69 | 28 | 3 |
| 6 | 68 | 28 | 4 |
| 7 | 68 | 28 | 4 |
| 8 | 68 | 28 | 4 |
| 9 | 68 | 28 | 4 |
| 10 | 68 | 28 | 4 |
| 11 | 68 | 28 | 4 |
| 12 | 67 | 28 | 5 |
| 13 | 66 | 29 | 5 |
| 14 | 66 | 29 | 5 |
| 15 | 66 | 29 | 5 |
| 16 | 64 | 30 | 6 |
| 17 | 64 | 30 | 6 |
| 18 | 63 | 30 | 7 |
| 19 | 62 | 31 | 7 |
| 20 | 61 | 31 | 8 |
| 21 | 61 | 31 | 8 |
| 22 | 59 | 32 | 9 |
| 23 | 59 | 32 | 9 |
| 24 | 58 | 33 | 9 |
| 25 | 57 | 33 | 10 |
| 26 | 57 | 33 | 10 |
| 27 | 57 | 33 | 10 |
| 28 | 57 | 33 | 10 |
| 29 | 57 | 33 | 10 |
| 30 | 58 | 32 | 10 |
| 31 | 58 | 32 | 10 |
Wind in January
Winds average 15 km/h in January.
Across January, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 16 | light breeze |
| 2 | 16 | light breeze |
| 3 | 16 | light breeze |
| 4 | 16 | light breeze |
| 5 | 16 | light breeze |
| 6 | 16 | light breeze |
| 7 | 16 | light breeze |
| 8 | 16 | light breeze |
| 9 | 16 | light breeze |
| 10 | 16 | light breeze |
| 11 | 16 | light breeze |
| 12 | 16 | light breeze |
| 13 | 16 | light breeze |
| 14 | 16 | light breeze |
| 15 | 16 | light breeze |
| 16 | 15 | light breeze |
| 17 | 15 | light breeze |
| 18 | 15 | light breeze |
| 19 | 15 | light breeze |
| 20 | 15 | light breeze |
| 21 | 15 | light breeze |
| 22 | 15 | light breeze |
| 23 | 15 | light breeze |
| 24 | 15 | light breeze |
| 25 | 15 | light breeze |
| 26 | 15 | light breeze |
| 27 | 15 | light breeze |
| 28 | 15 | light breeze |
| 29 | 15 | light breeze |
| 30 | 15 | light breeze |
| 31 | 15 | light breeze |
Sunrise & sunset in January
Daylight runs from about 15 hours at the start of January to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 48 minutes over January. Sunrise moves from 5:59 AM to 6:30 AM, and sunset from 8:56 PM to 8:45 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 15.0 | 14.9 | 14.9 | 14.9 | 14.9 | 14.9 | 14.9 | 14.9 | 14.8 | 14.8 | 14.8 | 14.8 | 14.8 | 14.7 | 14.7 | 14.7 | 14.7 | 14.6 | 14.6 | 14.6 | 14.6 | 14.5 | 14.5 | 14.5 | 14.4 | 14.4 | 14.4 | 14.3 | 14.3 | 14.3 | 14.2 |
| Sunrise (AM) | 5:59 | 5:59 | 6:00 | 6:01 | 6:02 | 6:03 | 6:04 | 6:05 | 6:06 | 6:07 | 6:08 | 6:09 | 6:10 | 6:11 | 6:12 | 6:13 | 6:14 | 6:15 | 6:16 | 6:17 | 6:18 | 6:19 | 6:21 | 6:22 | 6:23 | 6:24 | 6:25 | 6:27 | 6:28 | 6:29 | 6:30 |
| Sunset (PM) | 8:56 | 8:56 | 8:56 | 8:56 | 8:56 | 8:56 | 8:56 | 8:56 | 8:56 | 8:56 | 8:56 | 8:55 | 8:55 | 8:55 | 8:55 | 8:54 | 8:54 | 8:53 | 8:53 | 8:52 | 8:52 | 8:51 | 8:51 | 8:50 | 8:49 | 8:49 | 8:48 | 8:47 | 8:46 | 8:46 | 8:45 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 15.0 | 5:59 | 8:56 |
| 2 | 14.9 | 5:59 | 8:56 |
| 3 | 14.9 | 6:00 | 8:56 |
| 4 | 14.9 | 6:01 | 8:56 |
| 5 | 14.9 | 6:02 | 8:56 |
| 6 | 14.9 | 6:03 | 8:56 |
| 7 | 14.9 | 6:04 | 8:56 |
| 8 | 14.9 | 6:05 | 8:56 |
| 9 | 14.8 | 6:06 | 8:56 |
| 10 | 14.8 | 6:07 | 8:56 |
| 11 | 14.8 | 6:08 | 8:56 |
| 12 | 14.8 | 6:09 | 8:55 |
| 13 | 14.8 | 6:10 | 8:55 |
| 14 | 14.7 | 6:11 | 8:55 |
| 15 | 14.7 | 6:12 | 8:55 |
| 16 | 14.7 | 6:13 | 8:54 |
| 17 | 14.7 | 6:14 | 8:54 |
| 18 | 14.6 | 6:15 | 8:53 |
| 19 | 14.6 | 6:16 | 8:53 |
| 20 | 14.6 | 6:17 | 8:52 |
| 21 | 14.6 | 6:18 | 8:52 |
| 22 | 14.5 | 6:19 | 8:51 |
| 23 | 14.5 | 6:21 | 8:51 |
| 24 | 14.5 | 6:22 | 8:50 |
| 25 | 14.4 | 6:23 | 8:49 |
| 26 | 14.4 | 6:24 | 8:49 |
| 27 | 14.4 | 6:25 | 8:48 |
| 28 | 14.3 | 6:27 | 8:47 |
| 29 | 14.3 | 6:28 | 8:46 |
| 30 | 14.3 | 6:29 | 8:46 |
| 31 | 14.2 | 6:30 | 8:45 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 7.31 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 1.7 kWh/m² to a high of 7.31 kWh/m² in January across the year — January's 7.31 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 7.7 | 7.7 | 7.6 | 7.6 | 7.6 | 7.5 | 7.5 | 7.4 | 7.4 | 7.3 | 7.3 | 7.2 | 7.2 | 7.1 | 7.1 | 7.1 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 6.9 | 6.9 | 6.9 | 6.8 | 6.8 | 6.8 | 6.8 | 6.7 | 6.7 | 6.7 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 7.7 | Intense |
| 2 | 7.7 | Intense |
| 3 | 7.6 | Intense |
| 4 | 7.6 | Intense |
| 5 | 7.6 | Intense |
| 6 | 7.5 | Intense |
| 7 | 7.5 | Intense |
| 8 | 7.4 | Intense |
| 9 | 7.4 | Intense |
| 10 | 7.3 | Intense |
| 11 | 7.3 | Intense |
| 12 | 7.2 | Intense |
| 13 | 7.2 | Intense |
| 14 | 7.1 | Intense |
| 15 | 7.1 | Intense |
| 16 | 7.1 | Intense |
| 17 | 7.0 | Intense |
| 18 | 7.0 | Intense |
| 19 | 7.0 | Intense |
| 20 | 7.0 | Intense |
| 21 | 7.0 | Intense |
| 22 | 6.9 | Intense |
| 23 | 6.9 | Intense |
| 24 | 6.9 | Intense |
| 25 | 6.8 | Intense |
| 26 | 6.8 | Intense |
| 27 | 6.8 | Intense |
| 28 | 6.8 | Intense |
| 29 | 6.7 | Intense |
| 30 | 6.7 | Intense |
| 31 | 6.7 | Intense |
Is January a good time to visit Blenheim?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is a reasonable time to visit Blenheim for sightseeing.
What to pack for Blenheim in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Blenheim sees daytime highs around 20°C and nights near 13°C. Pack sun protection. Worth having: rain gear. About 8 days see rain.
Sea temperature near Blenheim in January
The nearest coast averages about 16°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 21 km away) is warmest in February at about 17°C and coldest in August near 12°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 16 | 17 | 16 | 15 | 14 | 13 | 12 | 12 | 12 | 13 | 14 | 15 |
| Comfort | Cool | Cool | Cool | Cool | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 16 | Cool |
| Feb | 17 | Cool |
| Mar | 16 | Cool |
| Apr | 15 | Cool |
| May | 14 | Bracing |
| Jun | 13 | Bracing |
| Jul | 12 | Bracing |
| Aug | 12 | Bracing |
| Sep | 12 | Bracing |
| Oct | 13 | Bracing |
| Nov | 14 | Bracing |
| Dec | 15 | Bracing |
UV index in Blenheim in January
Clear-sky midday UV in January peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Blenheim peaks around January 11 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 16 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 11 | 10 | 6 | 4 | 2 | 1 | 2 | 3 | 4 | 6 | 9 | 11 |
| Level | Extreme | Extreme | High | Moderate | Low | Low | Low | Moderate | Moderate | High | Very high | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 10 | Extreme |
| Mar | 6 | High |
| Apr | 4 | Moderate |
| May | 2 | Low |
| Jun | 1 | Low |
| Jul | 2 | Low |
| Aug | 3 | Moderate |
| Sep | 4 | Moderate |
| Oct | 6 | High |
| Nov | 9 | Very high |
| Dec | 11 | Extreme |
Where is Blenheim?
Blenheim sits at 41.5°S, 174.0°E, 9 m above sea level, in New Zealand. The nearest listed city is Picton, 25 km away.
Topography around Blenheim
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Blenheim.
Within 3 km, the terrain around Blenheim has only modest variations in elevation — a maximum elevation change of 79 m around an average of 9 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 899 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,829 m.
The land around Blenheim is covered by grassland (47%) and artificial surfaces (32%) within 3 km, grassland (53%) and trees (24%) within 16 km, and water (47%), trees (28%) and grassland (21%) within 80 km.
New Zealand travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type I
- 230 V · 50 Hz
- Prices
- ≈ 86% of US
- price level, 2025
- GDP per capita
- $49,591
- 2025
- Happiness
- 7.0 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 1.5
- per 100k, 2022
- Road deaths
- 9.6
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Blenheim (-41.516°, 173.9528°, elevation 9 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).