| BREEDE RIVER: Climate |
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eWISA Home | BREEDE: MAIN INDEX | ALPHABETICAL LIST OF RIVERS | ||||||||||||||||||||||
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Map of the BREEDE River |
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| TEMPERATURE | |||||||||||||||||||||||
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The mean annual temperature varies between 17ºC in the east to 15ºC along the south-west coast, with an average of 17ºC for the whole Water Management Area. Maximum temperatures are experienced in January (average daily max = 37ºC) and minimum temperatures usually occur in July (average daily min = 0ºC). Frost occurs throughout the WMA in winter, typically between mid-May and late August. (Ref 1). | ||||||||||||||||||||||
| RAINFALL | |||||||||||||||||||||||
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Most of the rain falls between the months of May and August. An all year round rainfall pattern prevails in the far south-east. Occasional snowfalls occur on the mountains in the south-west and north-west of the Water Management Area during most winters. In the high mountainous regions in the south-west, the maximum MAP exceeds 3 000mm, but rainfall is as low 250mm in the central and north-eastern Breede River valley and other interior valleys. The average potential mean annual evaporation (measured by S-Pan) ranges from 1200 mm in the south to 1700 mm in the north of the Water Management Area. (Ref 1). | ||||||||||||||||||||||
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Rainfall is mostly Winter to all year | ||||||||||||||||||||||
| References | |||||||||||||||||||||||
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Ref 1: Department of Water Affairs and Forestry, South Africa. 2004. Breede Water Management Area: Internal Strategic Perspective. Prepared by Ninham Shand (Pty) Ltd in association with Jakoet & Associates, Umvoto Africa and Tlou and Matji, on behalf of the Directorate: National Water Resource Planning. DWAF Report No P WMA18/000/00/0304. | ||||||||||||||||||||||
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