Nepal can be visited throughout the year. However, autumn is the best and spring the second recommended season.
Spring
March to May. Warm, dusty and rain showers. Rhododendrons and wild orchids are in blossom.
Summer
June to early September. Heavy rain.
Autumn Late September to November. Cool, clear skies, best trekking season
Winter December to February. Pretty cold at night, foggy in the morning but pleasant days.
Temperature( In Degree Celcius)
| Month | Kathmandu | Pokhara | Biratnagar | Chitwan |
|
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
| Jan |
19 |
-1 |
20 |
8 |
23 |
8 |
24 |
7 |
| Feb |
20 |
3 |
21 |
8 |
26 |
8 |
26 |
8 |
| Mar |
25 |
7 |
27 |
11 |
31 |
11 |
33 |
12 |
| Apr |
30 |
11 |
30 |
16 |
33 |
16 |
35 |
18 |
| May |
30 |
16 |
30 |
19 |
33 |
19 |
36 |
20 |
| Jun |
30 |
20 |
30 |
20 |
32 |
20 |
35 |
23 |
| July |
20 |
21 |
30 |
21 |
32 |
21 |
33 |
24 |
| Aug |
29 |
20 |
30 |
21 |
31 |
21 |
33 |
24 |
| Sept |
27 |
19 |
29 |
20 |
31 |
20 |
32 |
22 |
| Oct |
23 |
15 |
27 |
18 |
31 |
18 |
31 |
18 |
| Nov |
23 |
4 |
23 |
11 |
30 |
11 |
29 |
12 |
| Dec |
20 |
2 |
20 |
8 |
27 |
8 |
24 |
8 |
Sunshine Hours
| Month | Kathmandu | Pokhara | Biratnagar | Chitwan |
| Jan |
25 |
15 |
15 |
10 |
| Feb |
25 |
15 |
10 |
10 |
| Mar |
75 |
30 |
15 |
10 |
| Apr |
50 |
50 |
50 |
15 |
| May |
100 |
300 |
125 |
200 |
| Jun |
225 |
575 |
475 |
300 |
| July |
375 |
800 |
500 |
500 |
| Aug |
360 |
700 |
350 |
450 |
| Sept |
175 |
575 |
275 |
400 |
| Oct |
50 |
220 |
100 |
100 |
| Nov |
10 |
20 |
10 |
5 |
| Dec |
10 |
5 |
5 |
5 |