The peak tourist season in Cetinje is during the summer months, from June to August, when the weather is warm and sunny. However, the city is also beautiful in the spring (April and May) and autumn (September and October), when temperatures are milder and crowds are smaller.

The official currency in Montenegro is the Euro (€). You can exchange foreign currencies at banks, exchange offices, and some hotels in Cetinje. It's advisable to have some cash on hand, as some smaller establishments may not accept credit cards.

Major credit and debit cards are widely accepted in Cetinje, especially in hotels, restaurants, and larger shops. However, it's always a good idea to carry some cash, as smaller establishments or local markets may prefer or only accept cash payments.

Cetinje is generally considered a safe destination for solo travelers. However, as with any place, it's essential to exercise caution and be aware of your surroundings, especially at night. Avoid isolated areas, keep valuables out of sight, and trust your instincts if a situation feels uncomfortable.

While Cetinje is a modern city, it's essential to respect local customs and dress modestly when visiting religious sites or traditional events. Women should avoid revealing clothing, and both men and women should cover their shoulders and knees when entering churches or monasteries.