Tehran vs Isfahan: which is sunnier?
🇮🇷 Iran vs 🇮🇷 Iran · 303 km apart · long-term climate normals (NASA POWER, 2001–2020)
Isfahan is the sunnier overall: about 3,689 hours of sunshine a year to Tehran's 3,219. Isfahan has the higher Sunshine Score in 9 of 12 months, Tehran in 1 (2 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Tehran | Isfahan | |
|---|---|---|
| Sunshine hours / year | 3,219 | 3,689 |
| Sunniest month | May (95/100) | September (100/100) |
| Nov–Feb average score | 32/100 | 32/100 |
| Jun–Aug average score | 42/100 | 53/100 |
| Rain / year | 308 mm | 139 mm |
| Peak midday UV | 10 (very high) | 11 (extreme) |
Tehran vs Isfahan month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Tehran | Isfahan | Tehran | Isfahan | Tehran | Isfahan | |
| January | 15 | 8 | 10° | 9° | 33 | 18 |
| February | 31 | 32 | 12° | 12° | 34 | 16 |
| March | 76 | 80 | 18° | 18° | 35 | 23 |
| April | 91 | 96 | 24° | 23° | 38 | 23 |
| May | 95 | 98 | 30° | 30° | 15 | 10 |
| June | 49 | 60 | 37° | 36° | 6 | 3 |
| July | 29 | 40 | 39° | 38° | 7 | 1 |
| August | 48 | 60 | 37° | 36° | 8 | 1 |
| September | 86 | 100 | 33° | 32° | 16 | 1 |
| October | 92 | 99 | 25° | 25° | 36 | 3 |
| November | 60 | 64 | 16° | 16° | 45 | 20 |
| December | 23 | 24 | 11° | 11° | 35 | 20 |
The sunnier month by month: Jan Tehran · Feb even · Mar Isfahan · Apr Isfahan · May Isfahan · Jun Isfahan · Jul Isfahan · Aug Isfahan · Sep Isfahan · Oct Isfahan · Nov Isfahan · Dec even.
When to pick which
- November–February: too close to call — Tehran averages 32/100, Isfahan 32/100. Daytime highs are similar (12°C vs 12°C). See the winter sun ranking.
- March–May: Isfahan (average score 91/100 vs 87). Daytime highs are similar (24°C vs 24°C).
- June–August: Isfahan (average score 53/100 vs 42). Daytime highs are similar (38°C vs 37°C).
- September–October: Isfahan (average score 100/100 vs 89). Daytime highs are similar (29°C vs 29°C).
Full month-by-month guides: Tehran weather by month · Isfahan weather by month · Best time to visit Iran.
More comparisons: Tehran vs Rasht · Tehran vs Sari · Isfahan vs Ahvaz · Isfahan vs Yazd · Isfahan vs Sari · all head-to-heads