you're welcome to Morocco and i wish you a very safe and enjoyable trip over here in Morocco.
first of all January is quite cold over here and mainly nearby the mountains; if you mean spending the night in the High Atlas Mountains i advise you to have a warm sleeping bag as this region is so cold and mainly early morning.
traveling alone for a woman in Morocco is generally safe and i had hosted women who did it alone but always some harassment exists; traveling using the buses is also generally fine ; try to use the CTM or Supratours buses as they are more comfortable and in time, dress respectfully to the culture so that you won't face any troubles too. the journey from Marrakesh to Agadir takes around 4 to 5 hours depends on the bus.
have a very enjoyable and safe trip
peace & hugs
Well just got back from my holiday in Morocco... what an adventure! We spent 3 days in Marrakech, 2 days in Essaouira and 1 in the Atlas Mountains.
One thing I would say if you are heading to Imlil in the Atlas Mountains make sure you check the weather before you go!
We booked a tour through Imzi tours in Marrakech, they sent a normal hatchback car along to get us... as we drove nearer the mountains the weather got worse and worse, we had to pass landslides and maneouver around hairpin bends in the pouring rain!
After we passed Asni, a river from the mountains had burst its banks and had pours onto the road, basically turning the road into a river. Our car gotr stuck in the middle, we had to jump out of the car in the middle of the river, our clothes got soaked, we were in such a panic. Our driver had to go and get help from local men to push the car out as the river got higher and higher, it was terrifying. Eventually we got out and carried on the journey, only for the tyre to burst shortly after. Cue us standing in the middle of a sleet storm high up on the mountain waiting for assistance.
By the time we eventually got to Imlil it was properly snowing, we were soaked through to the bone and freezing. We collapsed in bed shivering.
We had planned to do a trek in Imlil and also carry on the drive to the Ourika Valley, but we had no clothes/boots suitable for snow trekking, not to mention the car we had came in was falling apart... we just wanted to get down off the mountain as quickly as possible!
It was such a shame as the people in Imlil were lovely and friendly, but the car we were given was not suitable for mountain driving (most other tourists had a 4x4) and we were not equipped for such weather.
So my advice... if booking a trip to Atlas Mountains, check the weather first! It may be VERY different to Marrakech and could scupper your plans.
you just didnt chose a better time , maybe if you came in march it gonna be great