Ralphs Bay :: Weather

Temperatures and Rain Days

The Bureau of Metereology has published the following climate statistics collected from their weather station situated at Kingston on the opposite shore of the Derwent Estuary.

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Wind

Situated on the “Roaring 40s”, it is well known that Tasmania is generally a very windy place. In summer, the “katabatic/sea-breeze cycle” is very noticeable with a predominant northerly component through the morning but a southerly component dominating during the afternoon and early evening.

The “Derwent Wind Study” (1987) analysed wind velocity measurements at White Rock Point on South Arm, at the entrance to Ralphs Bay, taken at 3 hourly intervals throughout the day for one year. Amongst the results it was shown that for over 60% of all readings taken during summer, the recorded wind speed was in excess of 21 kilometres per hour. At 6 pm 85% of all readings were in excess of 21 kilometres per hour.

The low hills of Droughty Point and Tranmere do little to guard Ralphs Bay from the full force of the prevailing North-Westerly and Westerly winds. The Bureau of Meteorology recorded a maximum wind gust of 146 km/hour on Droughty Hill on 19th October 2002.

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