The Weather in Korea
Korea’s overall temperature range throughout the year may be best compared with the northeastern USA. Despite its location at about 37° latitude, Korea sometimes has severe winters, with snow accumulating in the mountains. Koreans, as well as Japanese tourists, enjoy skiing at numerous ski resorts located throughout the country. Many roads are impassable for cyclists in wintertime because compacted snow on the roads turn into ice. High passes on small roads may be closed till the month of April. Icy roads are not treated with salt; at the best, with sand.
Summer is short, hot and humid, with the rainy season in July. Don't trust this to always be the case. I’ve made once a tour in July and seen hardly any rain. From September to January, and April to mid-June, you have a fair chance encountering pleasant and dry weather. The best months for bicycle touring are September and October, when temperatures reach up to 24°C (75°F) with little rain.
Communication and Internet
If your mobile phone is working on GSM networks only, it won't work in Korea. You can rent a mobile phone at international airports. Despite the explosive use of cellulars phones, public phones are available everywhere. Many public phones (still) take coins. There is only one type of public phonecard that works on all public phones (hurray for Korea!). Many convenience stores in villages have a payphone, taking coins, in many cases outside the shop on the street.
Access to the internet is a widespread commodity in Korea, you will find internet cafés even in villages in the countryside and in many cases they are open for 24 hours a day. Such a place is called "PC bang", typically it cost you 0.60 Euro (US$ 0.90) per hour. To recognize a PC bang is easy: "PC" is always signposted in English.