January in Karlštejn Castle — the hardest end of the year
Hardest · 4.3/10January averages 1°C (33°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
Expect 40 mm of rain — occasional showers rather than washed-out days — alongside about 0 sunny days and 8.3 daylight hours.
It scores 4.3/10 here, 11th of 12 months, against 8.9/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip.
If your dates are flexible, May is materially better in Karlštejn Castle — 4.6 points higher on the same scale.
February in Karlštejn Castle — workable with trade-offs
Trade-offs · 5/10February averages 3°C (38°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
Expect 39 mm of rain — occasional showers rather than washed-out days — alongside about 0 sunny days and 9.8 daylight hours.
It scores 5/10 here, 9th of 12 months, against 8.9/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip.
If your dates are flexible, May is materially better in Karlštejn Castle — 3.9 points higher on the same scale.
March in Karlštejn Castle — workable with trade-offs
Trade-offs · 6.6/10March averages 5°C (41°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Expect 28 mm of rain — occasional showers rather than washed-out days — alongside about 7 sunny days and 11.6 daylight hours.
It scores 6.6/10 here, 8th of 12 months, against 8.9/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in.
If your dates are flexible, May is materially better in Karlštejn Castle — 2.3 points higher on the same scale.
April in Karlštejn Castle — reliably good (6th best month)
Good · 7.2/10April averages 8°C (47°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 52 mm, so plan one flexible day in three; you still get about 12 sunny days and 13.5 hours of daylight.
It scores 7.2/10 here, 6th of 12 months, against 8.9/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
If your dates are flexible, May is materially better in Karlštejn Castle — 1.7 points higher on the same scale.
May in Karlštejn Castle — the year's strongest window
Best window · 8.9/10May averages 14°C (58°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 60 mm, so plan one flexible day in three; you still get about 22 sunny days and 15.2 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Karlštejn Castle at 8.9/10 — the reference point every other month on this page is measured against.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
June in Karlštejn Castle — the year's strongest window
Best window · 8.6/10June averages 19°C (67°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rainfall runs 85 mm, so plan one flexible day in three; you still get about 26 sunny days and 16.1 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Karlštejn Castle at 8.6/10 — the reference point every other month on this page is measured against.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
July in Karlštejn Castle — the year's strongest window
Best window · 8.9/10July averages 21°C (70°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rainfall runs 78 mm, so plan one flexible day in three; you still get about 25 sunny days and 15.7 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Karlštejn Castle at 8.9/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
August in Karlštejn Castle — reliably good (4th best month)
Good · 8.2/10August averages 21°C (70°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rainfall runs 98 mm, so plan one flexible day in three; you still get about 18 sunny days and 14.3 hours of daylight.
It scores 8.2/10 here, 4th of 12 months, against 8.9/10 in the destination's best month.
Expect peak pricing, and this is one of the busiest months here.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
September in Karlštejn Castle — reliably good (5th best month)
Good · 7.5/10September averages 16°C (60°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 88 mm, so plan one flexible day in three; you still get about 10 sunny days and 12.4 hours of daylight.
It scores 7.5/10 here, 5th of 12 months, against 8.9/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
October in Karlštejn Castle — workable with trade-offs
Trade-offs · 6.7/10October averages 11°C (53°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Expect 39 mm of rain — occasional showers rather than washed-out days — alongside about 0 sunny days and 10.5 daylight hours.
It scores 6.7/10 here, 7th of 12 months, against 8.9/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in.
If your dates are flexible, May is materially better in Karlštejn Castle — 2.2 points higher on the same scale.
November in Karlštejn Castle — the hardest end of the year
Hardest · 4.7/10November averages 4°C (39°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
Rainfall runs 50 mm, so plan one flexible day in three; you still get about 0 sunny days and 8.7 hours of daylight.
It scores 4.7/10 here, 10th of 12 months, against 8.9/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer.
If your dates are flexible, May is materially better in Karlštejn Castle — 4.2 points higher on the same scale.
December in Karlštejn Castle — the hardest end of the year
Hardest · 3.6/10December averages 1°C (33°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
Rainfall runs 61 mm, so plan one flexible day in three; you still get about 0 sunny days and 7.9 hours of daylight.
It scores 3.6/10 here, 12th of 12 months, against 8.9/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer.
If your dates are flexible, May is materially better in Karlštejn Castle — 5.3 points higher on the same scale.
