The non-frozen lake Issyk-Kul makes the temperatures milder in a vicinity of the lake. In winter it is 3°-5°C warmer than in other areas, while in summer there is no sweltered heat there. In January an average temperature ranges between -4 °C and -9 °C while in July it is from + 20 °C up to +27 °C in low mountainous regions and the Issyk-Kul. Absolute low temperatures of air drop in winter down -50°C on the Ak-Sai. Absolute high temperatures of air reach +43°C - +44°C in Chu Valley and in the South of Kyrgyzstan. An average wind velocity is small, 1-3m/sec, however the mountain landscape and availability of a large area of water of the Issyk-Kul cause numerous winds. Frequently alongside with alteration of day and night the wind direction also changes. Intrusion of cold air into the Issyk-Kul hollow is accompanied with a stormy wind the velocity of which sometimes mounted to 40km/h. In the valley areas of Kyrgyzstan a total amount of precipitation makes up 230-500 mm. In the mountainous areas it can reach 1500 mm. In warm seasons precipitation falls more than in a cold ones. The most cloudy sky can be observed in the end of winter and in the beginning of spring. A thunder storm is a frequent phenomenon. The largest number of thunder storms fall in June and July.

The area relishes in some 2900 hours of sunshine a year. Because of the effect of the mountain ranges North and South, it does not suffer from extreme Continental climatic conditions. Summer temperatures are usually around 25-28 degrees, but as the lake lies at an altitude of some 1606m, it can get quite chilly, especially at night. Winter temperatures can be around –5 degrees.

Air and Water Temperatures, C	May	June	July	August	September	October
Daily Air temperature	14.4	18.0	20.6	20.6	17.9	12.7
Night Air temperature	8.8	11.3	13.4	13.3	9.4	4.6
Average daily Air temperature	11.5	15.0	17.3	17.0	13.3	8.2
Daily Water temperature	14	18	21	22	20	16
Night Water temperature	10	16	19	20	18	14
Average daily Water temperature	12	17	20	21	19	15