Large city
9.4M
825 km²
1,178m
07:28 UTC+3.5
IRR
Tehran is bathed in sunshine — 316 sunny days a year. Winters are cold with frequent frost. On the other hand, air quality is a concern.
Tehran, Iran is a 9.4M-resident city with 316 sunny days and 98 frost days annually and an annual PM2.5 of 32.5 µg/m³. The capital and largest city of Iran.
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Feels-like °C
-1
3
11
18
21
27
29
28
23
17
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Dinner outside
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M
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Climate Lab·Tehran
Monthly climate metrics across temperature, precipitation, wind, and UV.
TehranIran
| Metric | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature | |||||||||||||
| Daily high°C | 3 | 8 | 12 | 20 | 26 | 31 | 33 | 31 | 29 | 21 | 13 | 6 | 19 |
| Daily mean°C | -1 | 2 | 7 | 16 | 19 | 27 | 29 | 27 | 24 | 16 | 9 | 3 | 15 |
| Daily low°C | -7 | -4 | 2 | 10 | 13 | 22 | 24 | 21 | 18 | 10 | 4 | -3 | 9 |
| Thermal comfort | |||||||||||||
| High feelsDaily high feels-like°C | 15 | 18 | 20 | 24 | 27 | 31 | 33 | 32 | 29 | 23 | 19 | 16 | 24 |
| Mean feelsDaily mean feels-like°C | -1 | 3 | 11 | 18 | 21 | 27 | 29 | 28 | 23 | 17 | 9 | 2 | 16 |
| Low feelsDaily low feels-like°C | -19 | -15 | -6 | 4 | 10 | 17 | 20 | 17 | 12 | 4 | -4 | -17 | 2 |
| Humidity | |||||||||||||
| HumidityRelative humidity% | 55 | 58 | 48 | 31 | 31 | 18 | 22 | 21 | 24 | 34 | 55 | 53 | 37 |
| Dewpoint°C | -8.9 | -6.2 | -2.9 | -1.4 | 2.1 | -0.1 | 4.2 | 3.2 | 1.5 | -0.6 | -1.1 | -6.4 | -1.4 |
| Precipitation | |||||||||||||
| Rainfallmm | 16 | 39 | 60 | 21 | 23 | 1 | 3 | 2 | 0 | 12 | 35 | 31 | 243 |
| Rain days≥1mm | 2 | 5 | 12 | 3 | 4 | 0 | 1 | 0 | 0 | 3 | 7 | 4 | 41 |
| Snowfallmm | 25 | 18 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 46 |
| Snow days≥1mm | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 |
| Wind | |||||||||||||
| Wind avgm/s | 1.3 | 1.6 | 1.5 | 1.8 | 2.0 | 2.2 | 2.3 | 2.1 | 1.7 | 1.5 | 1.2 | 1.2 | 1.7 |
| Wind gustsm/s | 2.6 | 2.6 | 2.9 | 3.3 | 3.8 | 3.7 | 3.9 | 3.7 | 3.3 | 3.0 | 2.3 | 2.4 | 3.1 |
| Sun & UV | |||||||||||||
| Sunshinehrs/day | 7.7 | 8.9 | 9.7 | 10.7 | 11.1 | 12.9 | 12.7 | 11.8 | 11.0 | 9.9 | 8.5 | 8.6 | 10.3 |
| Clear skyindex | 57% | 62% | 60% | 66% | 72% | 88% | 93% | 88% | 96% | 87% | 64% | 68% | 75% |
| UV indexmax avg | 2.5 | 3.8 | 5.4 | 7.3 | 9.5 | 10.6 | 10.1 | 9.3 | 7.9 | 5.4 | 3.2 | 2.4 | 6.4 |
Based on 2014–2024 hourly climate data · Updated Mar 2025
Confidence: High
Lifestyle Calendar·Tehran
Tehran is livable outdoors nearly year-round. 3 months of the year are perfect for all activities. Dinner outside works 5/12 months, while lunch outside is comfortable 12/12 months — impressive.
TehranIran
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Annual
5/12
Dinner Outside44
Jan: 0% viability
0Feb: 0% viability
0Mar: 3% viability
3Apr: 39% viability
39May: 70% viability
70Jun: 99% viability
99Jul: 100% viability
100Aug: 100% viability
100Sep: 94% viability
94Oct: 19% viability
19Nov: 0% viability
0Dec: 0% viability
05/12
Dinner OutsideJan: 0% viability
0Feb: 0% viability
0Mar: 3% viability
3Apr: 39% viability
39May: 70% viability
70Jun: 99% viability
99Jul: 100% viability
100Aug: 100% viability
100Sep: 94% viability
94Oct: 19% viability
19Nov: 0% viability
0Dec: 0% viability
044%
Cold
12/12
Lunch Outside85
Jan: 72% viability
72Feb: 73% viability
73Mar: 76% viability
76Apr: 85% viability
85May: 88% viability
88Jun: 96% viability
96Jul: 90% viability
90Aug: 93% viability
93Sep: 97% viability
97Oct: 95% viability
95Nov: 79% viability
79Dec: 75% viability
7512/12
Lunch OutsideJan: 72% viability
72Feb: 73% viability
73Mar: 76% viability
76Apr: 85% viability
85May: 88% viability
88Jun: 96% viability
96Jul: 90% viability
90Aug: 93% viability
93Sep: 97% viability
97Oct: 95% viability
95Nov: 79% viability
79Dec: 75% viability
7585%
12/12
Walking94
Jan: 99% viability
99Feb: 99% viability
99Mar: 100% viability
100Apr: 100% viability
100May: 100% viability
100Jun: 93% viability
93Jul: 65% viability
65Aug: 78% viability
78Sep: 99% viability
99Oct: 100% viability
100Nov: 100% viability
100Dec: 99% viability
9912/12
WalkingJan: 99% viability
99Feb: 99% viability
99Mar: 100% viability
100Apr: 100% viability
100May: 100% viability
100Jun: 93% viability
93Jul: 65% viability
65Aug: 78% viability
78Sep: 99% viability
99Oct: 100% viability
100Nov: 100% viability
100Dec: 99% viability
9994%
Heat
10/12
Running89
Jan: 99% viability
99Feb: 99% viability
99Mar: 100% viability
100Apr: 100% viability
100May: 100% viability
100Jun: 78% viability
78Jul: 40% viability
40Aug: 59% viability
59Sep: 96% viability
96Oct: 100% viability
100Nov: 100% viability
100Dec: 99% viability
9910/12
RunningJan: 99% viability
99Feb: 99% viability
99Mar: 100% viability
100Apr: 100% viability
100May: 100% viability
100Jun: 78% viability
78Jul: 40% viability
40Aug: 59% viability
59Sep: 96% viability
96Oct: 100% viability
100Nov: 100% viability
100Dec: 99% viability
9989%
Heat
Tap any month for details · Click activity name for overview
ComfortableModerateUncomfortable
Based on 2014–2024 hourly climate data · Updated Mar 2025
Confidence: High
