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 Recreational Marine: Christchurch Marine Weather Situation and Forecast issued at 1641hrs Sunday 21-Dec-2025 by MetService Situation: Cold, showery southwesterlies ease over NZ as a ridge of high pressure moves east over the country from the Tasman Sea. On Monday, a front from the Tasman moves across central and northern areas of the North Island while a second, more active, front affects southern New Zealand. The second front moves to the North Island on Tuesday, becoming slow-moving. A westerly flow covers New Zealand on Christmas Eve with embedded fronts affecting the North Island, and southern and western parts of the South Island. A small, deep low may pass over the far south of the South Island. On Christmas morning, a departing front may affect Northland. Another, more active front moves northwards over the South Island, bringing brief heavy rain to Fiordland and the ranges of Westland before becoming slow-moving about the north of the South Island later on Christmas Day. Forecast for Inshore waters from Lyttelton Harbour to the Waimakariri River mouth Nil warnings Sunday: Southerly 10 knots. Changing northeast 15 knots early evening, then easing to variable 5 knots late evening. Sea slight. Cloudy periods. Monday: Variable 5 knots. Easterly 15 knots developing late morning, rising to 20 knots for a time in the evening. Sea becoming moderate for a time in the evening. Morning and evening cloud. Poor visibility in rain developing evening. Tuesday: Easterly 15 knots, becoming northwest 15 knots in the morning. Becoming easterly 15 knots in the afternoon. Fine. Wednesday: Northeast 15 knots, changing westerly 20 knots early, easing to 10 knots late. Fine. Thursday: Westerly 10 knots, becoming northerly 15 knots early. Partly cloudy. High Tide at Lyttelton: Sunday 1834 2.1 metres Monday 0701 2.3 metres Article © 2025 Metservice, Funded by the NZ Government Data is for information only. New Zealand City disclaims all liability or responsibility for any loss or damage that may result from the action or failure to act by any person in reliance on any information provided herein. |
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