Straddling the equator, Indonesia tends to have a fairly even climate year-round. Rather than four seasons, Indonesia has two season: wet and dry and there are no extremes of winter and summer.
In most parts of Indonesia, the wet season falls between October and April (low season), and the dry season between May and September (high season). Rain tends to come in sudden tropical downpours, but it can also rain nonstop for days.
Indonesia’s climate can be hot and humid, so bringing along sunblocks and moisturizers during dry season is recommended. No need to bring umbrellas during rainy season because they are abundant and can easily be bought even in small shops. You might need extra clothing though, and you can purchase them almost anywhere. Always drink plenty of water is important.
Indonesia has several traditions and customs and it is best if you know them beforehand. Some of them are:
Even though hand shaking is deemed appropriate between men and women, bear in mind that a number of Muslim women prefer to introduce themselves to men by nodding their head, smiling, and clasping their hands without any physical contact.
Traditionally, when you greet someone, both hands are used when shaking, without grasping.
Shoes must be taken off before entering a house or place of worship like mosques.
Usually drinks are offered to guests. It is polite to accept.
When eating, receiving or giving something, always use your right hand. Right index finger should not be used to point a place, items or people. Use the right hand thumb and fold the remaining fingers to be more polite.
Most Indonesian Muslims do not consume alcoholic drinks and pork. Hence, the tradition of proposing a toast to honor someone is not generally known.
If you visit someone's house you may be asked if you have already eaten - "Sudah Makan?" The polite answer is Sudah (Already).
Indonesian people are very welcoming and friendly and tend to be very smiley. You will attend to be asked "where do you come from" and call you with "mister" even though you are woman.
Getting around Sumatra
You will not face problems traveling within the island state as the roads in Sumatra are good. You can find quite a good network of transportation and road services and buses are the most convenient way of traveling around the state. Bus travel is one of the best options for intercity travel. Trains are available in Sumatra and there is a useful rail line between Bandar Lampung and Palembang. For exploring the beautiful tourist attractions of the region, you can rent cars, motorbikes and bicycles, and there are regular ferries from Sumatra to surrounding islands.
Do not feed the orangutans under any circumstances.
Visitors should not remove, damage, or alter any of the vegetation within the forest
Leaves, seeds and shells all play a role within the forest ecosystem and should not be taken out.
Don’t go to jungle if you fell sick. If the guide feels that a visitor is not well enough authority to refuse entry to the visitor