Ostrov Temperature by Month
Ostrov, Karlovy Vary Region, Czech Republic has an average annual maximum temperature of 12°C (54°F), ranging from 1°C (34°F) in January to 23°C (73°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Ostrov Monthly Temperatures
The climate in Ostrov is dynamic, ranging widely from very cold in winter to comfortable in summer. Nights are significantly colder, with lows dropping from 12°C (54°F) in July to -4°C (25°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Ostrov by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. July, the city's warmest month, sees 196 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Ostrov vs Czech Republic
The map below shows the annual temperature across Czech Republic. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Ostrov vs World: Temperature Compared
Ostrov's average annual maximum temperature is 12°C (54°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
What Does the Temperature Feel Like in Ostrov?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Ostrov, January is the coolest month, with average highs of 1°C (34°F) and humidity around 86% — considered very high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Ostrov this rarely lasts long on the ground.
For more on Ostrov's weather — including monthly rainfall, sunshine hours, and humidity — visit our Ostrov climate page.
