Summer weather

Calculations are based on the last 8 years of historical weather data.

Temperatures

Maximum Temperatures

Period	Prague	Brno	Ostrava
Jun 1	71.7°F	72.6°F	71.2°F
Jun 8	72.1°F	72.6°F	71.0°F
Jun 15	77.5°F	76.8°F	75.5°F
Jun 22	76.1°F	78.0°F	75.7°F
Jul 1	74.3°F	76.8°F	74.1°F
Jul 8	75.0°F	77.7°F	75.0°F
Jul 15	77.9°F	79.7°F	76.8°F
Jul 22	79.5°F	81.1°F	78.2°F
Aug 1	77.3°F	78.8°F	75.9°F
Aug 8	79.3°F	81.5°F	78.9°F
Aug 15	79.5°F	81.1°F	78.8°F
Aug 22	75.5°F	78.2°F	75.9°F
Average	76.3°F	75.6°F	77.9°F

Minimum Temperatures

Period	Prague	Brno	Ostrava
Jun 1	53.7°F	55.2°F	53.7°F
Jun 8	55.0°F	56.4°F	55.0°F
Jun 15	57.7°F	58.2°F	56.8°F
Jun 22	58.6°F	59.7°F	58.1°F
Jul 1	56.8°F	58.2°F	56.8°F
Jul 8	57.5°F	58.2°F	56.8°F
Jul 15	59.1°F	60.6°F	58.8°F
Jul 22	61.3°F	61.8°F	60.0°F
Aug 1	61.3°F	61.5°F	59.7°F
Aug 8	61.1°F	61.8°F	60.4°F
Aug 15	62.4°F	63.1°F	61.7°F
Aug 22	59.3°F	60.4°F	59.0°F
Average	58.7°F	58.1°F	59.6°F

Maximum/minimum temperature averages are computed by averaging the max/min temperature of each day for a given period.

Conditions

Sunny Weather

Period	Prague	Brno	Ostrava
Jun 1	7.1 hours/day	6.1 hours/day	6.9 hours/day
Jun 8	5.7 hours/day	6.3 hours/day	5.0 hours/day
Jun 15	7.6 hours/day	9.8 hours/day	7.6 hours/day
Jun 22	6.6 hours/day	8.1 hours/day	5.8 hours/day
Jul 1	6.0 hours/day	6.2 hours/day	5.4 hours/day
Jul 8	5.0 hours/day	7.0 hours/day	5.2 hours/day
Jul 15	6.4 hours/day	7.1 hours/day	6.1 hours/day
Jul 22	6.5 hours/day	7.2 hours/day	6.4 hours/day
Aug 1	5.9 hours/day	7.2 hours/day	6.6 hours/day
Aug 8	7.2 hours/day	9.7 hours/day	7.8 hours/day
Aug 15	6.1 hours/day	7.4 hours/day	6.6 hours/day
Aug 22	5.5 hours/day	6.9 hours/day	6.4 hours/day
Average	6.3 hours/day	6.3 hours/day	7.4 hours/day

Sun hours are computed from the number of hours of direct sunlight. The length of the day can affect these measurements; for example, northern cities have longer days in summer.

Precipitation Levels

Period	Prague	Brno	Ostrava
Jun 1	0.1in	0.1in	0.1in
Jun 8	0.1in	0.1in	0.1in
Jun 15	0.1in	0.1in	0.1in
Jun 22	0.2in	0.1in	0.1in
Jul 1	0.1in	0.1in	0.1in
Jul 8	0.1in	0.1in	0.1in
Jul 15	0.1in	0.1in	0.1in
Jul 22	0.1in	0.1in	0.1in
Aug 1	0.2in	0.2in	0.3in
Aug 8	0.1in	0.1in	0.1in
Aug 15	0.1in	0.1in	0.1in
Aug 22	0.1in	0.1in	0.1in
Average	0.1in	0.1in	0.1in

Average amount of precipitation that falls in a form of a rain, snow, sleet or hail.

Wind Speed

Period	Prague	Brno	Ostrava
Jun 1	9.0mph	9.4mph	8.9mph
Jun 8	9.2mph	10.4mph	9.7mph
Jun 15	9.1mph	10.2mph	9.0mph
Jun 22	10.2mph	11.3mph	10.5mph
Jul 1	10.3mph	10.4mph	9.6mph
Jul 8	9.9mph	10.4mph	9.7mph
Jul 15	8.7mph	10.4mph	8.8mph
Jul 22	9.4mph	10.3mph	9.2mph
Aug 1	8.9mph	10.4mph	9.5mph
Aug 8	8.5mph	10.2mph	8.5mph
Aug 15	8.1mph	9.4mph	8.0mph
Aug 22	9.1mph	10.0mph	8.8mph
Average	9.2mph	9.2mph	10.2mph

Humidity

Period	Prague	Brno	Ostrava
Jun 1	72.6%	77.0%	75.9%
Jun 8	70.5%	76.6%	77.4%
Jun 15	67.3%	73.2%	74.4%
Jun 22	69.9%	72.0%	75.2%
Jul 1	65.8%	69.3%	72.8%
Jul 8	67.1%	68.7%	73.5%
Jul 15	62.9%	64.4%	69.1%
Jul 22	61.5%	64.4%	68.5%
Aug 1	65.8%	65.3%	70.7%
Aug 8	62.7%	61.0%	64.8%
Aug 15	63.2%	63.7%	68.5%
Aug 22	65.4%	64.1%	69.1%
Average	66.2%	71.7%	68.3%

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Astronomy

Sunrise Time

Period	Prague	Brno	Ostrava
Jun 1	4:56	4:51	4:41
Jun 8	4:53	4:48	4:38
Jun 15	4:52	4:48	4:38
Jun 22	4:54	4:50	4:40
Jul 1	4:59	4:55	4:45
Jul 8	5:05	5:01	4:51
Jul 15	5:13	5:08	4:59
Jul 22	5:24	5:19	5:10
Aug 1	5:36	5:30	5:21
Aug 8	5:46	5:40	5:31
Aug 15	5:56	5:50	5:42
Aug 22	6:09	6:02	5:54
Average	5:18	5:06	5:12

Sunrise times are output in the local timezone of each place.

Sunset Time

Period	Prague	Brno	Ostrava
Jun 1	21:06	20:53	20:49
Jun 8	21:11	20:58	20:55
Jun 15	21:15	21:02	20:58
Jun 22	21:16	21:03	20:59
Jul 1	21:14	21:01	20:57
Jul 8	21:10	20:57	20:53
Jul 15	21:03	20:51	20:47
Jul 22	20:53	20:41	20:36
Aug 1	20:40	20:28	20:23
Aug 8	20:28	20:17	20:12
Aug 15	20:14	20:04	19:59
Aug 22	19:58	19:48	19:42
Average	20:54	20:36	20:42

Sunset times are output in the local timezone of each place.

Day Length

Period	Prague	Brno	Ostrava
Jun 1	16:10 hours	16:02 hours	16:07 hours
Jun 8	16:19 hours	16:10 hours	16:16 hours
Jun 15	16:23 hours	16:13 hours	16:20 hours
Jun 22	16:22 hours	16:13 hours	16:19 hours
Jul 1	16:15 hours	16:06 hours	16:12 hours
Jul 8	16:04 hours	15:56 hours	16:02 hours
Jul 15	15:50 hours	15:43 hours	15:48 hours
Jul 22	15:28 hours	15:22 hours	15:26 hours
Aug 1	15:04 hours	14:58 hours	15:02 hours
Aug 8	14:41 hours	14:37 hours	14:40 hours
Aug 15	14:18 hours	14:14 hours	14:17 hours
Aug 22	13:49 hours	13:46 hours	13:47 hours
Average	15:36 hours	15:30 hours	15:24 hours

Average length of the day from sunrise to sunset.

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Summer weather

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