Riaang wrote: Last year January a couple of us did a 4 day hike in the Mnweni and Cathedral Peak area. On the Friday, we hit 39 degrees with high humidity on the approach to Ifidi pass. Two days later, I was shivering in Easter cave from the cold. It was rainy, wet and the wind was pumping. Even though I had my down jacket on and wore my windproof outer layer over the jacket, it was very cold and I was happy to be able to climb into a warm sleeping bag.
That was cold yes. If I recall my bag is rated to -7 and I slept at the back of the cave, in my bivi bag too as I see from the photos. Agreed with Riaan. Things change quickly. And if too hot, I sleep with the zip mostly open. Rather be slightly over gunned.