Tajikistan has two good windows: Apr–May and Sep–Oct. They sit either side of the season the climate record rules out, which is why the shoulder months matter here. The recommended window is Sep–Oct.
Extreme hot/cold swings
| Month | High °C | High °F | Rainy days | Verdict |
|---|---|---|---|---|
| January | 5.3 | 42 | 26% | Fair |
| February | 7.0 | 45 | 34% | Fair |
| March | 12.8 | 55 | 33% | Fair |
| April | 19.0 | 66 | 28% | Go |
| May | 24.9 | 77 | 22% | Go |
| June | 31.7 | 89 | 7% | Fair |
| July | 34.8 | 95 | 2% | Too hot |
| August | 33.3 | 92 | 1% | Too hot |
| September | 27.9 | 82 | 2% | Go |
| October | 20.4 | 69 | 7% | Go |
| November | 13.0 | 55 | 19% | Fair |
| December | 7.5 | 46 | 23% | Fair |
Verdict combines mean daytime high with rainy-day frequency. “Rainy days” is the share of days in the month with at least 1 mm of rain.
August is the driest month, with rain on 1% of days and daytime highs near 33.3°C (92°F). February is the wettest, at 34%. Temperature swings hard across the year — 29.5°C between July (34.8°C / 95°F) and January (5.3°C / 42°F) — so packing for the wrong month is the main risk. The record rules out too hot in Jul–Aug.