Gdańsk, Poland · 54.35°
Late Blight in Gdańsk
105 hours in an average year meet every threshold this disease needs in Gdańsk, peaking in July. Those add up to about 1 sustained favourable spells a year, and it is the spells rather than the scattered hours that lead to infection.
Risk in Gdańsk, next 48 hours
When conditions favour it in Gdańsk
Hours in an average month when conditions meet every threshold this disease declares (2021–2025). Faded bars are months the database does not list the problem as active.
This disease's thresholds: 10–25°C · humidity ≥90% · wet leaves / rain. Every hour in the archive was tested against them.
These come from the ERA5 reanalysis on a roughly 9 km grid, so they describe the area rather than your plot. A shaded, sheltered corner holds leaf wetness longer than open ground, so conditions there can favour it more often than the figure suggests. This is a climate profile, not a forecast — the panel above carries the current risk.
How this compares
Of the 13 locations published here, Gdańsk ranks 13 for hours favouring this disease in a year.
Remove affected material now
Take out the affected leaves, shoots or whole plants before the next wet spell, bag them as you cut, and wash your hands and tools before touching healthy plants.
Scout the planting while temperatures hold between 10°C and 25°C, with humidity above 90%, after rain or heavy dew, while the leaves are still wet. Risk builds after roughly 10 unbroken hours of those conditions, so the morning after such a night is the moment to look.
Wind-blown spores. Spores travel on air well beyond the affected bed, so a neighbouring garden can be the source. Spacing and airflow matter more than distance from your own infected plant.