Best time to visit Giant Mountains National Park
Month-by-month weather averages for Giant Mountains National Park.
Giant Mountains National Park, Poland
°C
mm
- Average daily high and low
- Precipitation
- Good month
- Best month
- Made good or best by an event
| Month | Average daily high | Average daily low | Precipitation | Verdict |
|---|---|---|---|---|
| January | -0.8 °C / 31 °F | -5.1 °C / 23 °F | 97 mm / 3.8 in | neither best nor good |
| February | 0.7 °C / 33 °F | -4.3 °C / 24 °F | 73 mm / 2.9 in | neither best nor good |
| March | 5 °C / 41 °F | -1.8 °C / 29 °F | 72 mm / 2.8 in | neither best nor good |
| April | 11 °C / 52 °F | 2.3 °C / 36 °F | 62 mm / 2.5 in | neither best nor good |
| May | 15.1 °C / 59 °F | 6.3 °C / 43 °F | 104 mm / 4.1 in | neither best nor good |
| June | 19.3 °C / 67 °F | 10.4 °C / 51 °F | 115 mm / 4.5 in | good month |
| July | 21.1 °C / 70 °F | 11.9 °C / 53 °F | 131 mm / 5.1 in | good month |
| August | 20.6 °C / 69 °F | 11.6 °C / 53 °F | 132 mm / 5.2 in | good month |
| September | 16.2 °C / 61 °F | 8.2 °C / 47 °F | 90 mm / 3.5 in | good month |
| October | 10.6 °C / 51 °F | 4.1 °C / 39 °F | 80 mm / 3.2 in | neither best nor good |
| November | 4.9 °C / 41 °F | 0.2 °C / 32 °F | 75 mm / 2.9 in | neither best nor good |
| December | 0.7 °C / 33 °F | -3.5 °C / 26 °F | 81 mm / 3.2 in | neither best nor good |
Good and best months depend on more than temperature, rain and events. How they are chosen
Each activity on this page has its own good and best months, rated on twenty years of daily weather records. Which measures count, and how much, depends on the activity: humidity for exploring outdoors, wind for the beach, hiking and skiing, snow for skiing alone. Between them, the activities are rated on:
- Daytime highs
- Night-time lows
- How warm it feels
- Humidity
- How much of the day is sunny
- Hours of daylight
- Monthly rainfall
- How many days it rains
- Days of heavy rain
- Wind
- Snowfall and days with snow
- Major events, such as festivals
The chart shows the good and best months for exploring outdoors.
The event icon marks a month that an event lifts to good or best, such as a festival or a natural spectacle. Choose “Weather only” in the toolbar to rate the months on weather alone.
Best months by activity
Exploring outdoors
Mild days and nights, mostly dry and bright. The default for 'when should I go'.
- JJanuary: neither
- FFebruary: neither
- MMarch: neither
- AApril: neither
- MMay: neither
- JJune: good
- JJuly: good
- AAugust: good
- SSeptember: good
- OOctober: neither
- NNovember: neither
- DDecember: neither
- Good
- June–September
Why these months
June · good
In its favour: feels like (high) 18.5 °C / 65 °F, average daily high 19.3 °C / 67 °F, share of daylight that is sunny 74%, precipitation 115 mm / 4.5 in, average daily low 10.4 °C / 51 °F, days with heavy rain 4 days, relative humidity 76%.
Against: wet days 16 days.
July · good
In its favour: feels like (high) 20.6 °C / 69 °F, average daily high 21.1 °C / 70 °F, share of daylight that is sunny 77%, average daily low 11.9 °C / 53 °F, days with heavy rain 4.1 days, relative humidity 75%.
Against: wet days 17.6 days, precipitation 131 mm / 5.1 in.
August · good
In its favour: feels like (high) 20.2 °C / 68 °F, average daily high 20.6 °C / 69 °F, share of daylight that is sunny 75%, average daily low 11.6 °C / 53 °F, days with heavy rain 4.2 days.
Against: wet days 16.1 days, precipitation 132 mm / 5.2 in, relative humidity 78%.
September · good
In its favour: feels like (high) 14.6 °C / 58 °F, share of daylight that is sunny 69%, average daily high 16.2 °C / 61 °F, precipitation 90 mm / 3.5 in, days with heavy rain 2.8 days, average daily low 8.2 °C / 47 °F.
Against: wet days 12.9 days, relative humidity 82%.
Hiking and trekking
Cool enough to climb in, dry enough to enjoy, long enough days.
- JJanuary: neither
- FFebruary: neither
- MMarch: neither
- AApril: best
- MMay: good
- JJune: good
- JJuly: good
- AAugust: good
- SSeptember: best
- OOctober: good
- NNovember: neither
- DDecember: neither
- Best
- April, September
- Good
- May–August, October
Why these months
April · best
In its favour: average daily high 11 °C / 52 °F, precipitation 62 mm / 2.5 in, days with heavy rain 1.1 days, share of daylight that is sunny 74%, daylight per day 13.8 h, average daily low 2.3 °C / 36 °F, feels like (high) 7.8 °C / 46 °F, wet days 12.6 days, wind (daily max) 16 km/h / 10 mph.
May · good
In its favour: average daily high 15.1 °C / 59 °F, precipitation 104 mm / 4.1 in, feels like (high) 13 °C / 55 °F, average daily low 6.3 °C / 43 °F, share of daylight that is sunny 71%, daylight per day 15.5 h, days with heavy rain 2.9 days, wind (daily max) 16 km/h / 10 mph.
Against: wet days 16.1 days.
June · good
In its favour: average daily high 19.3 °C / 67 °F, precipitation 115 mm / 4.5 in, feels like (high) 18.5 °C / 65 °F, average daily low 10.4 °C / 51 °F, share of daylight that is sunny 74%, daylight per day 16.4 h, days with heavy rain 4 days, wind (daily max) 15 km/h / 9 mph.
Against: wet days 16 days.
July · good
In its favour: average daily high 21.1 °C / 70 °F, feels like (high) 20.6 °C / 69 °F, average daily low 11.9 °C / 53 °F, share of daylight that is sunny 77%, daylight per day 16 h, precipitation 131 mm / 5.1 in, wind (daily max) 14 km/h / 9 mph.
Against: wet days 17.6 days, days with heavy rain 4.1 days.
August · good
In its favour: average daily high 20.6 °C / 69 °F, feels like (high) 20.2 °C / 68 °F, average daily low 11.6 °C / 53 °F, share of daylight that is sunny 75%, daylight per day 14.5 h, precipitation 132 mm / 5.2 in, wind (daily max) 13 km/h / 8 mph.
Against: wet days 16.1 days, days with heavy rain 4.2 days.
September · best
In its favour: average daily high 16.2 °C / 61 °F, precipitation 90 mm / 3.5 in, feels like (high) 14.6 °C / 58 °F, average daily low 8.2 °C / 47 °F, share of daylight that is sunny 69%, daylight per day 12.6 h, days with heavy rain 2.8 days, wind (daily max) 14 km/h / 9 mph.
Against: wet days 12.9 days.
October · good
In its favour: average daily high 10.6 °C / 51 °F, precipitation 80 mm / 3.2 in, days with heavy rain 2 days, average daily low 4.1 °C / 39 °F, share of daylight that is sunny 60%, feels like (high) 8.1 °C / 47 °F, daylight per day 10.7 h, wind (daily max) 15 km/h / 9 mph.
Against: wet days 12.9 days.
Skiing and snow
Wants cold and snowfall; sunshine barely matters.
- JJanuary: best
- FFebruary: best
- MMarch: best
- AApril: neither
- MMay: neither
- JJune: neither
- JJuly: neither
- AAugust: neither
- SSeptember: neither
- OOctober: neither
- NNovember: good
- DDecember: best
- Best
- December–March
- Good
- November
Why these months
January · best
In its favour: snowfall 48 cm / 18.8 in, average daily high -0.8 °C / 31 °F, days with snow 18.9 days, average daily low -5.1 °C / 23 °F, wind (daily max) 16 km/h / 10 mph, daylight per day 8.5 h.
February · best
In its favour: snowfall 31 cm / 12 in, average daily high 0.7 °C / 33 °F, days with snow 14.2 days, average daily low -4.3 °C / 24 °F, wind (daily max) 16 km/h / 10 mph, daylight per day 10 h.
March · best
In its favour: snowfall 23 cm / 9.2 in, days with snow 11.9 days, average daily low -1.8 °C / 29 °F, wind (daily max) 16 km/h / 10 mph, daylight per day 11.9 h.
Against: average daily high 5 °C / 41 °F.
November · good
In its favour: days with snow 8.3 days, snowfall 19 cm / 7.4 in, wind (daily max) 15 km/h / 9 mph, daylight per day 9 h.
Against: average daily high 4.9 °C / 41 °F, average daily low 0.2 °C / 32 °F.
December · best
In its favour: snowfall 33 cm / 12.9 in, average daily high 0.7 °C / 33 °F, days with snow 16.2 days, average daily low -3.5 °C / 26 °F, wind (daily max) 15 km/h / 9 mph, daylight per day 8 h.
An activity is listed only where it applies: skiing at ski destinations, beach and swimming at beach destinations. The nearest ski area is Skiareál Špindlerův Mlýn - Medvědín, 2 km away.
Weather averages
Monthly averages over twenty years, 2006–2025. Highs, lows and precipitation are in the chart at the top.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels like (high) | -4.9 °C | -3.4 °C | 1.1 °C | 7.8 °C | 13 °C | 18.5 °C | 20.6 °C | 20.2 °C | 14.6 °C | 8.1 °C | 1.7 °C | -3.1 °C |
| Days with heavy rain | 2.8 days | 2.1 days | 1.4 days | 1.1 days | 2.9 days | 4 days | 4.1 days | 4.2 days | 2.8 days | 2 days | 2.1 days | 2 days |
| Time rain usually falls | 10 pm | 8 am | 4 pm | 4 pm | 4 pm | 4 pm | 5 pm | 5 pm | 4 pm | 10 am | 10 am | 11 pm |
| Sunshine per day | 3.9 h | 5.5 h | 7.8 h | 10.2 h | 11 h | 12.2 h | 12.4 h | 10.8 h | 8.7 h | 6.4 h | 4.4 h | 3.6 h |
| Relative humidity | 92% | 88% | 80% | 73% | 75% | 76% | 75% | 78% | 82% | 88% | 92% | 93% |
Air quality
Averaged over a shorter period (2022–2025) than the twenty-year averages above, and not counted towards good or best months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air pollution (PM2.5) 2022–2025 | 7.1 µg/m³ | 11.5 µg/m³ | 12.9 µg/m³ | 10.2 µg/m³ | 11 µg/m³ | 12.2 µg/m³ | 11.1 µg/m³ | 9.6 µg/m³ | 8.5 µg/m³ | 8.2 µg/m³ | 9.2 µg/m³ | 8.4 µg/m³ |
| Air pollution (PM2.5, daily peak) 2022–2025 | 12.1 µg/m³ | 18.7 µg/m³ | 21.2 µg/m³ | 17.4 µg/m³ | 16.5 µg/m³ | 18.2 µg/m³ | 16.6 µg/m³ | 14.3 µg/m³ | 13 µg/m³ | 12.5 µg/m³ | 14.9 µg/m³ | 14.1 µg/m³ |
- Good 15 µg/m³ or less
- Fair 15 to 25 µg/m³
- Moderate 25 to 37.5 µg/m³
- Poor 37.5 to 50 µg/m³
- Very poor 50 to 75 µg/m³
- Extremely poor over 75 µg/m³
Each figure is compared with the World Health Organization's guideline for a day's air, 15 µg/m³ or less, and with its interim targets above that. The words are ours: the WHO does not name its steps. The figures are modelled monthly averages, so single days can be well above them. The daily peak is the average of each day's highest hour, shaded on the same scale.