My PH had his boots drying in front of the fire each evening due to the amount of dew we encountered hunting Eastern Cape a month ago and his were not Goretex lined. We had only one day of rain in 14 days and we did not hunt that day but the due in the mornings was pretty heavy. Not sure about other months since both of my SA trips were in May. My old run of the mill Irish Setter Goretex lined boots were nice and dry when I took them off in the evening and when I put them back on in the morning.
The important issue are making sure your boots are well worn, broken in and that you have good socks.
Best wishes and good luck on your hunt.
