Swakopmund Yearly Wind Summary

Note: Data is updated after midnight each day.

Other Summary Reports TEMP   RAIN

Maximum Wind Speed (kmh)
Date	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
2012	38.9*	24.1*	---	---	---	---	---	---	---	---	---	---	38.9*
2011	42.5	40.7*	38.9	64.8	46.3	42.5*	55.5	---	5.5	42.5	44.4	37.0	64.8*
2010	46.3	42.5	51.8*	41.7	62.9	410.7	55.5	44.4*	410.7*	51.8	42.5	35.1	410.7*
2009	42.5	50.0	53.6	46.3	53.7	50.0*	53.7	51.8	57.4	50.0*	50.0	38.9	57.4*
2008	46.3	48.1	46.3	59.2	48.1	50.0*	59.2	57.4	61.1	55.5	46.3	53.6	61.1*
2007	---	---	---	---	---	---	---	---	---	---	---	44.4*	44.4*
Max	46.3	50.0	53.6	64.8	62.9	410.7	59.2	57.4	410.7	55.5	50.0	53.6	410.7
Average Maximum Wind Speed (kmh)
Date	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
2012	24.5*	21.3*	---	---	---	---	---	---	---	---	---	---	24.1*
2011	25.8	28.9*	26.3	28.6	27.6	26.5*	30.2	---	0.2	18.8	27.5	24.8	24.1*
2010	29.9	29.4	34.4*	26.8	28.6	66.6	29.7	32.1*	45.4*	32.2	29.9	27.4	34.3*
2009	31.1	30.8	33.4	32.5	29.7	26.1*	38.0	29.2	30.6	33.1*	31.0	31.2	31.4*
2008	29.1	32.3	33.1	34.2	30.8	31.5*	32.6	33.4	38.8	34.9	33.7	33.0	33.1*
2007	---	---	---	---	---	---	---	---	---	---	---	32.0*	32.0*
Avg	28.1	30.1	31.8	30.5	29.2	37.9	32.6	31.5	28.5	29.6	30.5	29.5	30.7
Average Wind Speed (kmh)
Date	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
2012	6.6*	5.8*	---	---	---	---	---	---	---	---	---	---	6.5*
2011	6.8	7.6*	6.0	6.0	4.1	3.4*	4.8	---	0.0	4.5	6.9	7.8	5.2*
2010	8.0	7.6	8.2*	6.1	5.9	5.9	5.7	6.2*	8.2*	7.9	8.1	6.7	7.0*
2009	9.1	8.8	8.1	7.5	6.4	5.7*	8.3	6.4	7.7	8.0*	8.2	8.0	7.7*
2008	9.5	9.4	8.6	8.5	7.1	6.4*	7.3	8.4	9.6	9.7	9.7	9.8	8.7*
2007	---	---	---	---	---	---	---	---	---	---	---	9.5*	9.5*
Avg	8.0	8.3	7.7	7.0	5.9	5.3	6.5	7.1	6.3	7.5	8.2	8.3	7.2

* denotes incomplete data for the month/year.

WIND COLOR CODING CHART

Beaufort number	Description	Wind speed
		mph	km/h	kts	m/s
0	Calm	< 1	< 1	< 1	< 0.3
1	Light air	1 – 3	1.1 – 5.5	1 – 2	0.3 – 1.5
2	Light breeze	4 – 7	5.6 – 11	3 – 6	1.6 – 3.4
3	Gentle breeze	8 – 12	12 – 19	7 – 10	3.4 – 5.4
4	Moderate breeze	13 – 17	20 – 28	11 – 15	5.5 – 7.9
5	Fresh breeze	18 – 24	29 – 38	16 – 20	8.0 – 10.7
6	Strong breeze	25 – 30	39 – 49	21 – 26	10.8 – 13.8
7	High wind, Moderate gale, Near gale	31 – 38	50 – 61	27 – 33	13.9 – 17.1
8	Gale, Fresh gale	39 – 46	62 – 74	34 – 40	17.2 – 20.7
9	Strong gale	47 – 54	75 – 88	41 – 47	20.8 – 24.4
10	Storm, Whole gale	55 – 63	89 – 102	48 – 55	24.5 – 28.4
11	Violent storm	64 – 72	103 – 117	56 – 63	28.5 – 32.6
12	Hurricane-force	> 73	> 118	> 64	> 32.7

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