Yearly weather

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

Weather Score #

Heat Seeker Score is a composite score designed for those who crave hot, sunny weather with minimal rainfall. It prioritizes high temperatures and abundant sunshine.

Perfect for sun worshippers, beach lovers, and those seeking warm, dry climates for outdoor activities and relaxation.

Formula optimized for hot weather enthusiasts who prefer temperatures above 25°C (77°F) with maximum sun exposure and minimal precipitation.

Key factors in the calculation:

High temperatures: Favors locations with warm to hot daily highs
Abundant sunshine: Rewards areas with maximum daylight hours
Low precipitation: Penalizes frequent rain and wet conditions
Warm nights: Considers comfortable evening temperatures

Temperatures #

The temperature ranges across Prague, Brno, and Ostrava are quite similar throughout the year, with Brno exhibiting slightly warmer temperatures during the summer months
All three cities experience discomfort temperatures during the winter months of December, January, and February
During summer months, Brno and Prague have a comfortable temperature, while Ostrava is slightly below that range
August stands out as the warmest month, with Brno recording the highest average temperatures among the three cities.

Maximum Temperatures

Period	Prague	Brno	Ostrava
Jan	3.8°C	3.3°C	2.8°C
Feb	5.8°C	5.9°C	4.8°C
Mar	9.7°C	10.2°C	9.4°C
Apr	13.7°C	14.2°C	13.3°C
May	18.1°C	18.3°C	17.9°C
Jun	23.7°C	24.1°C	23.2°C
Jul	25.1°C	26.3°C	24.7°C
Aug	25.5°C	26.6°C	25.3°C
Sep	20.4°C	21.1°C	20.2°C
Oct	15.5°C	15.7°C	15.1°C
Nov	8.3°C	8.4°C	8.4°C
Dec	4.6°C	3.9°C	3.6°C
Average	14.8°C	14.1°C	14.5°C

Minimum Temperatures

Period	Prague	Brno	Ostrava
Jan	-0.6°C	-1.1°C	-1.8°C
Feb	-0.1°C	-0.1°C	-0.9°C
Mar	2.1°C	2.2°C	1.5°C
Apr	4.6°C	5.3°C	4.5°C
May	8.5°C	9.4°C	8.5°C
Jun	13.7°C	14.3°C	13.5°C
Jul	15.1°C	15.6°C	14.7°C
Aug	16.2°C	16.5°C	15.7°C
Sep	11.7°C	12.2°C	11.5°C
Oct	8.1°C	8.2°C	7.7°C
Nov	3.1°C	3.2°C	2.7°C
Dec	0.3°C	-0.5°C	-1.0°C
Average	7.1°C	6.4°C	6.9°C

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

Conditions #

When comparing the total sun hours and precipitation levels across Ostrava, Prague, and Brno, Brno consistently enjoys higher sun hours, particularly in the summer months, with July and August recording the highest sun exposure at 8.7 and 9.2 hours, respectively. In contrast, Ostrava experiences significant precipitation in September with 9.17mm, highlighting a peak in rainfall not mirrored in the other cities.
Prague, while having moderate sun hours overall, shows lower precipitation levels compared to the other two cities, particularly in the winter months. The data indicates that while all three cities share similar temperature patterns, Brno's sunnier disposition and Ostrava's wetter spells in certain months could impact outdoor activities and agricultural practices differently throughout the year.

Sunny Weather

Period	Prague	Brno	Ostrava
Jan	1.8 hours/day	1.9 hours/day	1.9 hours/day
Feb	2.7 hours/day	2.8 hours/day	2.2 hours/day
Mar	3.8 hours/day	4.1 hours/day	3.7 hours/day
Apr	4.7 hours/day	4.6 hours/day	4.5 hours/day
May	4.0 hours/day	5.2 hours/day	4.6 hours/day
Jun	6.7 hours/day	7.6 hours/day	6.3 hours/day
Jul	6.0 hours/day	6.9 hours/day	5.8 hours/day
Aug	6.1 hours/day	7.7 hours/day	6.8 hours/day
Sep	5.3 hours/day	5.8 hours/day	5.3 hours/day
Oct	4.0 hours/day	4.6 hours/day	4.5 hours/day
Nov	2.8 hours/day	2.9 hours/day	3.0 hours/day
Dec	1.6 hours/day	1.6 hours/day	1.6 hours/day
Average	4.6 hours/day	4.2 hours/day	4.1 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
Jan	1.3mm	1.4mm	1.9mm
Feb	1.6mm	1.1mm	2.0mm
Mar	1.2mm	1.3mm	1.7mm
Apr	1.5mm	1.5mm	2.3mm
May	2.6mm	2.8mm	2.9mm
Jun	3.6mm	2.7mm	2.8mm
Jul	2.4mm	2.1mm	3.0mm
Aug	3.3mm	2.6mm	3.9mm
Sep	2.2mm	3.1mm	3.8mm
Oct	1.5mm	1.3mm	2.1mm
Nov	1.5mm	1.6mm	1.7mm
Dec	1.7mm	2.0mm	2.2mm
Average	2.0mm	2.5mm	2.0mm

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

Wind Speed

Period	Prague	Brno	Ostrava
Jan	18.7km/h	18.7km/h	20.3km/h
Feb	18.7km/h	20.4km/h	20.2km/h
Mar	18.2km/h	20.8km/h	19.6km/h
Apr	18.0km/h	20.9km/h	19.1km/h
May	17.0km/h	18.8km/h	17.1km/h
Jun	15.2km/h	16.8km/h	15.5km/h
Jul	15.4km/h	16.7km/h	15.1km/h
Aug	14.0km/h	16.2km/h	14.0km/h
Sep	14.7km/h	17.1km/h	16.2km/h
Oct	16.3km/h	19.0km/h	18.1km/h
Nov	15.3km/h	19.1km/h	17.4km/h
Dec	17.0km/h	18.6km/h	18.6km/h
Average	18.6km/h	17.6km/h	16.5km/h

Humidity

Period	Prague	Brno	Ostrava
Jan	79.7%	81.9%	83.4%
Feb	74.5%	75.5%	78.5%
Mar	68.1%	68.3%	70.6%
Apr	68.8%	70.1%	72.6%
May	72.7%	75.8%	76.5%
Jun	70.1%	74.6%	75.7%
Jul	64.1%	66.5%	70.8%
Aug	64.4%	63.6%	68.4%
Sep	66.9%	66.3%	70.4%
Oct	71.4%	71.3%	73.5%
Nov	78.1%	78.2%	79.2%
Dec	81.3%	84.8%	85.4%
Average	73.1%	75.4%	71.7%

Daylight Hours #

In the summer, Ostrava experiences the earliest sunrise at 04:39, compared to 04:49 in Brno and 04:53 in Prague, indicating a trend of slightly earlier sunrises as you move northeast in the Czech Republic.
During winter, Brno has the latest sunrise at 07:41, while Prague has the latest sunset at 21:12 in June, highlighting that Prague benefits from longer daylight during the summer months compared to the other cities.
In December, Ostrava enjoys slightly shorter days with only 8 hours and 11 minutes of daylight, while Brno has the longest shortest day at 8 hours and 16 minutes, showcasing minimal variation in day length across the three cities.
Overall, while there are small differences in sunrise and sunset times, the variations do not significantly impact the overall day lengths experienced in each city throughout the year.

Sunrise Time

Period	Prague	Brno	Ostrava
Jan	7:53	7:41	7:37
Feb	7:13	7:02	6:57
Mar	6:19	6:10	6:04
Apr	6:09	6:02	5:54
May	5:16	5:11	5:02
Jun	4:53	4:49	4:40
Jul	5:11	5:07	4:57
Aug	5:53	5:47	5:38
Sep	6:38	6:31	6:23
Oct	7:21	7:11	7:05
Nov	7:16	7:04	6:59
Dec	7:53	7:41	7:37
Average	6:24	6:12	6:30

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

Sunset Time

Period	Prague	Brno	Ostrava
Jan	16:31	16:25	16:16
Feb	17:20	17:13	17:05
Mar	18:14	18:06	17:59
Apr	19:57	19:47	19:41
May	20:43	20:31	20:26
Jun	21:13	20:59	20:56
Jul	21:04	20:51	20:47
Aug	20:18	20:07	20:02
Sep	19:15	19:05	18:59
Oct	18:04	17:57	17:49
Nov	16:19	16:13	16:04
Dec	16:02	15:58	15:49
Average	18:36	18:30	18:42

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

Useful Day Length

Period	Prague	Brno	Ostrava
Jan	8:38 hours	8:44 hours	8:40 hours
Feb	10:08 hours	10:11 hours	10:05 hours
Mar	11:14 hours	11:06 hours	10:59 hours
Apr	12:57 hours	12:47 hours	12:41 hours
May	13:43 hours	13:31 hours	13:26 hours
Jun	14:13 hours	13:59 hours	13:56 hours
Jul	14:04 hours	13:51 hours	13:47 hours
Aug	13:18 hours	13:07 hours	13:02 hours
Sep	12:15 hours	12:05 hours	11:59 hours
Oct	10:43 hours	10:46 hours	10:44 hours
Nov	9:03 hours	9:08 hours	9:04 hours
Dec	8:09 hours	8:17 hours	8:11 hours
Average	11:30 hours	11:24 hours	11:30 hours

Discards daylight hours before 7 AM. In places that are located to the west of the timezone, the sun rises and sets later compared to the cities that are located to the east. This means that the useful day length is longer in the cities located to the west of the time zone.

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