Weather at the moment
Weather all year round
Cambodia's hot and humid climate is conditioned by the monsoons which determine the two seasons, dry (from November to the end of May) and wet (from the end of May to October), and finally by the north-western and south-eastern orientation of its seafront. The most difficult period to support weather level in Cambodia is the end of the dry season when temperatures can rise up to 40°C...
Be careful, the vast majority of Cambodia's population is poor, but the cost of living for foreigners is higher than in other Asian countries. Cambodia is not a very cheap country. The national currency is the real currency but the dollar is also used throughout the country. You can pay and withdraw with your credit card in big cities especially, plan cash for more remote areas. Tips are not mandatory but 10% of the score is welcome.
To travel to Cambodia, a tourist visa will allow you to stay there for one month. Theoretically, this tourist visa for Cambodia should cost you US$30 upon arrival (US$32 if you arrive without a passport photo), or US$38 if you opt for the e-visa on the Internet. As for the business visa, it still costs only US$35. These are the rates charged at Phnom Penh and Siem Reap airports, but when crossing a land border crossing, an average of US$35-40 is paid (officials are poorly paid...)! To avoid these shenanigans, it may therefore be preferable to obtain a visa in advance
No vaccination is required to travel to Cambodia. However, vaccines against diseases such as viral hepatitis A and B, diphtheria, tetanus, poliomyelitis, typhoid, Japanese encephalitis (prolonged stay in rural areas), rabies ("adventurous" tour) are recommended. If you are an adventurer of a completely different kind, know that AIDS is also very present in Cambodia. Most water is not drinkable.