My son and I will be traveling in September this year throughout Bavaria by car. In addition to catching a match at Allianz Arena we would like any suggestions with regards to weather, places to eat/stay, and things to see other than the obvious tourist destinations? I am moderately proficient in German and have travelled throughout Germany many times, but never by car. Help and advice appreciated. Thanks in advance for your help.
Well, there's this rather large party that you may of heard of that Munich throws at that time of year. If you plan to be in Munich at that time, get your hotel reservations as soon as possible.
Weather is usually mild and sunny.
If you like Alpine hiking, head to Garmisch-Partenkirchen or Oberstdorf. It's the best time of the year for walking through the Alps.
That is mushroom season in Bavaria and some restaurants will have special menus based around wild mushrooms. Often, if they translate the usual menu into English, they don't bother doing the mushroom one because of a stereotype that English-speaking people are scared to eat wild fungi. Ones to look for include "Pfifferlinge" (known in the English-speaking world as chanterelles) and "Steinpilze" (ceps/boletus).
Last year my husband and I did two things that might be a good fit for a guy's trip with a car. The first one you don't need a car for. While in Munich we took the BMW factory tour. We both found it fascinating. You make reservation by phone (in English) and pay for the tickets when you arrive. The other thing we did was take a day trip to Stuttgart and visited the Porsche Museum had lunch downtown and visited the Mercedes Museum in the afternoon. It was a long day, 7:30 am to 8:00 pm, but one of our trip highlights. If I remember right it was about two hours both ways. We actually left Munich in the morning and slept in Fussen that night.
Be prepared for hotel prices to jump during October fest. In some places they are almost double.
Your questions are a bit vague. How many nights/days do you have, what are you interested in and where do you tentatively plan on visiting? Austria is close, so I'd add some places there. One thing, NEVER drive on a highway in Austria without buying the Austrian "Vignette", which is a "toll sticker" for the windshield of your car. The cheapest version is 8.50 Euro for a sticker good for 10 consecutive days. Buy it in Germany (gas stations, convenience store's, etc.) before crossing the border.
We love the Berchtesgaden area. In Austria we love the Dachstein area, the Zillertal, the Oetztal and Zell am See. The Grossglockner Hochalpenstrasse is a great alpine drive.
Since you said "other than the obvious tourist destinations", for someplace different and off the typical tourist map (IMO), but not in Bavaria, you may like the Vinschgau/Val Venosta in Sud Tirol (Italy). It's basically between Meran/Merano and the Val Mustair (Switzerland). Alpine scenery, small villages and plenty of castles, plus the small medieval walled town of Glurns/Glorenza. Not as far as one may think... about 4 hours from Munich. To get here you can go via the Oetztal and drive the amazing Timmelsjoch Pass or via Innsbruck to Meran/Merano via the Jaufen Pass.