Christchurch
Christchurch, New Zealand: the weather, the air and the distance to the coast, each with its source. The costs are in a report built from your answers.
A year here
7 of 12 months have a mean temperature inside 10–26 °C, a band we chose and apply to every city alike. Thirty-year normals from NASA POWER, measured at this city’s own coordinates.
- Jan241812
- Feb241712
- Mar211510
- Apr18128
- May1496
- Jun1173
- Jul1063
- Aug1273
- Sept1494
- Oct16116
- Nov19138
- Dec221610
Each cell: average daily high, monthly mean, average daily low, in °C. These are averages of daily values over 2001–2020, not records — the hottest day is higher and is not shown.
How near the sea is
9.8 km
Straight-line distance from this city’s coordinates to the nearest coastline, computed from Natural Earth 1:10m Physical Vectors — Coastline (ne_10m_coastline) v5.1.2 at 1:10,000,000. Natural Earth is public domain, and anyone can download the same file and get the same number.
It is a distance and not an access. A city 8 km from the coast across a mountain ridge is not 8 km from the sea in any sense you would use, and the figure says nothing about what is on that coast — a container terminal and a bay give the same number. The coastline is the outline of the dataset’s land, so a river wide enough to separate land counts as coast.
Air through the year
Christchurch, 2025: PM2.5 averaged over 3 reference monitor(s) within 25 km. The World Health Organization’s guideline is 5 µg/m³ and its first interim target is 35.
- Jan5
- Feb6
- Mar8
- Apr15
- May15
- Jun11
- Jul7
- Aug5
- Sept6
- Oct4
- Nov6
- Dec5
How this city rates
- Safety
- 95 / 100measured
- Healthcare
- 88 / 100measured
- Air quality
- 91 / 100measured