Winter
There are a lot of possibilities to practice winter sports - snowboarding, cross country skiing, downhill skiing etc. Ramkalni (http://www.ramkalni.lv/en.php/), Baili (http://www.baili.lv/), Zviedru Cepure (http://www.zviedrucepure....). Some of slopes are open till late night. Usually need car to access.
Spring
Summer
riga good times event during the last week of jun and beginning july organized by riga couchsurfing community
Latvian Song and Dance Festival
One of the key cultural events in Latvia, which started back in 1873 as a singing festival. Now the festival involves live performances of various choirs, folk dance groups, brass bands etc. Competitions, exibitions, concerts, parades and joint concerts are some of the cultural events. Riga is full with people wearing traditional costumes and cheerful people from all Latvia. It is held once in five years. The last Latvian Song and Dance Festival (http://www.dziesmusvetki2...) took place from 6th to 12th July, 2008 in Riga.
Country music festival
(http://www.cma.lv/) - held annually in bauska, around middle july for 2 days. european and us country musicans. camping on the site possible.
Saulkrasti Jazz
(http://www.saulkrastijazz.lv/) - yearly jazz festival, which is held at the end of july. latvian and massive number of foreign musicians are performing live by the sea. weekly gigs culminate in one final concert. saulkrasti can be easily reached from the riga main train terminal by train.
International Music Festival âRiga Rythmsâ
(http://www.rigasritmi.lv/) usually held at the beginning of july in riga.
'Liepajas Dzintars (http://www.liepajasdzinta...) - the end of August is the time for famous Liepaja music festival.
Latvia has one of the longest sand beaches in Europe. In July and August the water is warm enough to swim comfortably. The sea has a very slow slope. As a best natural beach is listed the coast southways form Liepaja. Because it is a coast of open sea not a gulf with cleaner water, brighter sand, and not too many people, because its not close to massive population. With stable air temperature 30°C, water temperature is about 20°C which is very refreshing when You take an intensive sunbath. You don't practically need to wash Your self after beach, because salt level is pleasantly low.
Not impossible especially if you are an EU citizen, but you have to find a company which will be willing to pay a 35 LVL fee per month, work permit up to 170 LVL once and an additional fee for checking your documents of education 47.20 LVL once. Salary should not be less than 246 LVL per month.
Job advertisements in Latvian daily newspapers like Diena Tuesday or Saturday edition, some of those ads are in English, German, Russian or French.
autumn
There are many interesting and old castles around Latvia. Association of Latvian Castles, Palaces and Manors (http://www.pilis.lv/tulk/...) has links and photos on their website. Note that sometimes castles are reserved for private occasions.
It is popular to go for a stroll in the autumn to watch the different shades of colour, when the trees turn red and yellow. Popular places for such activities are Sigulda and Vidzemes Augstiene.