Rainbow forecast for Christchurch
Christchurch, New Zealand: live rainbow odds for today, the best hour to look up, and the week ahead.
Rainbow weather in Christchurch
Christchurch shares New Zealand's shower-and-sunshine rhythm: weather arrives off the Tasman and Southern Ocean in pulses, with clear bright air between them. The southern light is famously crisp, and bows over water or the ranges are a regular reward for watching the clearing sky.
Wherever you are, the rules are the same: a rainbow forms opposite the sun, only while the sun is less than 42 degrees above the horizon, and most often in the minutes after a shower moves through. The gauge above runs those rules against live ensemble forecasts for the 12 km around Christchurch.
Rainbow questions, answered
- When do rainbows appear in Christchurch?
- Rainbows need sunlit rain with the sun lower than 42 degrees, so in Christchurch the best windows are the hours after sunrise and before sunset on showery days. Around nine in ten rainbows appear in the hour right after rain stops.
- Where should I look for a rainbow in Christchurch?
- Always directly opposite the sun: put the sun at your back and look toward the retreating rain. In the evening that means looking east; in the morning, west.
- What is the rainbow chance in Christchurch today?
- Bowcast computes it live from ensemble weather models: about 40 forecast runs are checked for sunlit-rain conditions around Christchurch, hour by hour, for the next 7 days. The live figure is on this page and on the map.
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