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West Auckland summer

TUESDAY NOVEMBER 04, 2014

December, January and summer weather

The summer will start late and finish late. The first summer month, December, may be wetter than average but with average sunshine hours, and possibly more sunshine hours than January. Most rain comes in the second week of the month and then around Christmas, which may make the statutory holidays a washout. Camping and outdoor festivals or events may be affected. With king tides right on Christmas, there may be some slight flooding of drains.  It may be advisable to secure boats until the weather eases after Boxing Day.  The sunniest spell in December may be15-22nd. Temperatures do not vary much from those in the previous two months, and overall the month should be average to warmer. Daily maximums may average around 20-22C and minimums 11-14C.  The warmest week is the fourth week.

Wind systems in December should be mostly from southwest with some days from the northwest, and with a brief period of north-easterlies bringing that Christmas rain. The first week is likely to be the windiest. The barometer is at its lowest around 26th and highest around 18th-19th, overall averaging 1011mbs for the month, which is on the wetter side. The highest December tides at Cornwallis are on 22nd-25th. There is a lesser king-tide on the 8th. The Titirangi Market Day on the 28th should be dry. Best fishing bite times of the month are around noon during 5th-8th and 21st-23rd.  There are also better-than-average bite chances around the dusks of 1st, 13th-16th and 28th-30th. For gardeners, there are no best days for pruning this month, and 5 December is best for planting.  Recommended days for harvesting crops are 15th-17th. 

Overall January brings more than average rain. The first week is dry and the first and heaviest of the month's anticipated two rain systems is at or near 9th-10th. The second rain system is around 21st-22nd, which is also a large kingtide period, being the fourth highest for 2015   January sunshine is expected to be below average. The sunniest period may be 22nd-31st and dry spells for the month may be around 3rd-7th, 14th-19th and 23rd-27th. January may be overall average to cooler. Maximums may average 20-23C and minimums 13-15C. The warmest week is the second week. January sees more north-easterlies than in December, especially during the second and fourth weeks, but southwesterlies may feature on most other days. The windiest week is likely to be the fourth week.

As to air pressures, January's first week has the highest with the lowest barometer reading around 22nd. The overall average for the month may be 1015mbs which is around the cusp of the wet threshold. The highest tides at Cornwallis are 21st-24th. There is a lesser kingtide on the 6th. The Titirangi Market Day on the 25th should be dry but with passing showers expected within 24 hours. Best fishing bite times of the month are around midday during 4th-7th and 19th-22nd.  There are also better-than-average bite chances around the dusks of 12th-15th and 26th-28th.  For gardeners, the best day for planting is 3 January, and for pruning, the 19th-20th. Recommended days for harvesting crops are 15th and 29th. 

December and January are both months with useful dry spells punctuated by short periods of heavy downpours, with more rain for those further to the west, due to the usual path taken across Auckland by the occasional rain-bearing north-easterlies.  January is wet mainly in the second week, again more for Henderson and areas west, and again due to the wet northeaster. February should be dry and sunny, particularly for the whole first half of the month which will be mostly rain-free for most of the country.  February rain mostly arrives in the second half of the month. Remnants of cyclones combined with unusually high tides will be a feature of the first four months of 2015, particularly in March's fourth week, when the tide will be the second highest for 2015.

Heat wave temperatures may arrive in the first and last weeks of February and through to mid March. Some of the season's highest temperatures, possibly over 30C, will be in March's second week and will generate heat showers. Times to consider for summer holidays are the first week of January, the first two weeks of February and the last week of March. The second week of April is also dry, with temperatures still  20-25C. Times to avoid will be the second and fourth weeks of December, the second week in January, and the first and fourth weeks in April. Unusually high tides are 21-24 January, 19-22 February, 20-23 March and 17-20 April. Around the out-tide times these will also be the best days for recreational diving.

Once it gets going it will be a great summer. Hope you enjoy it!

For more information email ken@predictweather.com


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