| Jan | Cool 2–18°C, clear | Cold mornings, sunny days | Freezing nights, excellent views | Pleasant 10–25°C, good wildlife | Republic Day long weekend; book early |
| Feb | Warming 4–20°C | Rhododendrons start blooming | Good trekking, fewer crowds | Ideal for safari, comfortable | Valentine's & pre-Holi travel window |
| Mar | Warm 10–25°C, Holi | Blooming valleys, festivals | Trekking opens, clear skies | Hot days, excellent birding | Holi & spring break peak; high demand |
| Apr | Hot 15–30°C, ideal | Best views, rhododendron peak | Peak trekking season | Very warm, pre-monsoon green | Ideal for family holidays; book 2 months ahead |
| May | Very warm, hazy | Rhino spotting excellent | High altitude possible, warmer | Hot, lush, good wildlife | Summer vacation start; moderate crowds |
| Jun | Monsoon starts, heavy rain | Very wet, leeches common | Flights to Lukla often delayed | Lush green, good safari | Avoid trekking; focus on cities/wildlife |
| Jul | Peak monsoon, humid | Flood risk, limited outdoor | Trails muddy, leeches active | Very wet, fewer tourists | Budget season; cultural tours only |
| Aug | Rain tapering, 22–30°C | Crop harvest festivals | Gradual opening, views return | Green, good for photography | Post-monsoon prep; early bookings advised |
| Sep | Cooling, 15–28°C | Dashain festival, clear skies | Trekking season opens | Excellent, post-monsoon clarity | Best post-monsoon views; rising demand |
| Oct | Ideal 10–25°C, crisp | Clear Himalayan views | Peak trekking, book early | Pleasant, great wildlife | Diwali/Dussehra holiday window; peak season |
| Nov | Clear, cool 5–20°C | Excellent lakeside stays | Last clear month for treks | Cool, comfortable safari | Winter school holiday start; good availability |
| Dec | Cold 0–18°C, foggy AM | Chilly, fewer tourists | Winter trekking, snow-capped | Cool, excellent wildlife | Christmas/New Year peak; book 3–4 months ahead |