Irkutsk vs Ulan Ude: which is sunnier?
🇷🇺 Russia vs 🇷🇺 Russia · 214 km apart · long-term climate normals (NASA POWER, 2001–2020)
Irkutsk and Ulan Ude are virtually tied for annual sunshine — about 2,466 vs 2,485 hours a year. Ulan Ude has the higher Sunshine Score in 2 of 12 months; the other 10 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Irkutsk | Ulan Ude | |
|---|---|---|
| Sunshine hours / year | 2,466 | 2,485 |
| Sunniest month | June (83/100) | June (85/100) |
| Nov–Feb average score | 0/100 | 0/100 |
| Jun–Aug average score | 80/100 | 84/100 |
| Rain / year | 419 mm | 311 mm |
| Peak midday UV | 5 (moderate) | 6 (high) |
Irkutsk vs Ulan Ude month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Irkutsk | Ulan Ude | Irkutsk | Ulan Ude | Irkutsk | Ulan Ude | |
| January | 0 | 0 | -17° | -16° | 11 | 8 |
| February | 0 | 0 | -12° | -12° | 9 | 7 |
| March | 0 | 0 | -2° | -2° | 13 | 10 |
| April | 7 | 8 | 9° | 9° | 22 | 14 |
| May | 64 | 66 | 17° | 17° | 41 | 32 |
| June | 83 | 85 | 24° | 26° | 57 | 44 |
| July | 78 | 83 | 27° | 28° | 85 | 56 |
| August | 78 | 83 | 23° | 25° | 82 | 58 |
| September | 56 | 58 | 16° | 16° | 47 | 39 |
| October | 0 | 0 | 6° | 6° | 21 | 15 |
| November | 0 | 0 | -5° | -5° | 15 | 14 |
| December | 0 | 0 | -14° | -14° | 16 | 14 |
The sunnier month by month: Jan even · Feb even · Mar even · Apr even · May even · Jun even · Jul Ulan Ude · Aug Ulan Ude · Sep even · Oct even · Nov even · Dec even.
When to pick which
- November–February: too close to call — Irkutsk averages 0/100, Ulan Ude 0/100. Daytime highs are similar (-12°C vs -12°C). See the winter sun ranking.
- March–May: too close to call — Irkutsk averages 24/100, Ulan Ude 25/100. Daytime highs are similar (8°C vs 8°C).
- June–August: Ulan Ude (average score 84/100 vs 80). Daytime highs are similar (25°C vs 26°C).
- September–October: too close to call — Irkutsk averages 28/100, Ulan Ude 29/100. Daytime highs are similar (11°C vs 11°C).
Full month-by-month guides: Irkutsk weather by month · Ulan Ude weather by month · Best time to visit Russia.
More comparisons: Irkutsk vs Ulaanbaatar (Sergelen) · Irkutsk vs Chita · Ulan Ude vs Ulaanbaatar (Sergelen) · Ulan Ude vs Chita · all head-to-heads