I've just refurbished my front door, and have finished it with one coat of Sadolin Ultra base coat and 2 coats of Sadolin Ultra Walnut. The can says touch dry in 4 - 6 hours, and re-coatable after 16 hgours, yet 24 hours after applying the top coat, it is still tacky, despite the outside temperature being 22 deg C, and having stirred the product to within an inch of its life.
I phoned the Sadolin technical help line and they told me the problem was caused by high humidity, and that has a far greater effect than temperature. In fact, I was told that a cool dry day (10 - 12 deg C)will produce quicker drying times than a hot (24 - 26 deg C) humid day. With the current high levels of humidity you might want to take this into account before applying a finish in the late afternoon in the expectation that it will be touch dry by nightfall.
I've also experienced the same problem with Sikkens in humid conditions.