24 places · sun position · panel angle
Solar data for Mongolia
Across the 24 places in Mongolia the best fixed tilt for solar panels runs from 43° in Ulaangom to 48° in Mörön, and flat ground gets 3.8 to 4.7 peak sun hours a day. Every number is computed for each place.
Solar power in Mongolia at a glance
Averages over 24 places with climate data, for a fixed array facing south.
- 3.82–4.00
- 4.00–4.18
- 4.18–4.35
- 4.35–4.53
- 4.53–4.71
Peak sun hours a day on flat ground. Each dot is one place.
The sunniest place in Mongolia is Bogd (Övörhangay) with 4.71 peak sun hours a day on flat ground; the least sunny is Sühbaatar with 3.82. A 1 kWp array at its best angle makes from 1,537 kWh a year in Ulaangom to 1,860 kWh in Bogd — 1,757 kWh on average.
The best year-round tilt runs from 43° in Ulaangom to 48° in Mörön. Off-grid systems are sized for the darkest month and do better steeper, at 65° on average: at 70° that month brings 2.37 kWh per kWp a day in Ulaangom and 3.74 kWh in Uliastay.
Size an off-grid system or open any place below for its sun path, monthly table and tilt curve.
Sunniest places in Mongolia
Ranked by peak sun hours on flat ground: the yearly average of a day's sunshine energy (NASA POWER climatology). Output: 1 kWp at its best year-round angle.
| Rank | Place | Region | Sun hours/day | kWh per kWp a year | Best tilt |
|---|---|---|---|---|---|
| 1 | Bogd | Övörhangay | 4.71 | 1,860 | 43° |
| 2 | Dalandzadgad | Ömnögovĭ | 4.67 | 1,832 | 43° |
| 3 | Saynshand | East Gobi Aymag | 4.65 | 1,844 | 44° |
| 4 | Altai | Govi-Altai Province | 4.54 | 1,818 | 44° |
| 5 | Bayanhongor | Bayankhongor | 4.52 | 1,854 | 45° |
| 6 | Arvayheer | Övörhangay | 4.47 | 1,833 | 45° |
| 7 | Baruun-Urt | Sühbaatar | 4.41 | 1,810 | 46° |
| 8 | Uliastay | Dzabkhan | 4.36 | 1,819 | 47° |
| 9 | Undurkhaan | Hentiy | 4.34 | 1,797 | 46° |
| 10 | Dzuunmod | Central Aimak | 4.31 | 1,811 | 47° |
Least sunny places in Mongolia
| Rank | Place | Region | Sun hours/day | kWh per kWp a year | Best tilt |
|---|---|---|---|---|---|
| 20 | Mörön | Khövsgöl Province | 4.06 | 1,716 | 48° |
| 21 | Dzüünharaa | Selenge Province | 4.00 | 1,670 | 47° |
| 22 | Darhan | Darhan Uul | 3.97 | 1,650 | 47° |
| 23 | Ulaangom | Uvs Province | 3.90 | 1,537 | 43° |
| 24 | Sühbaatar | Selenge Province | 3.82 | 1,592 | 48° |
Solar by region in Mongolia
Averages of the places in each region, sunniest first. Darkest month: what 1 kWp of off-grid panels at 70° makes a day in the worst month of the year.
| Region | Places | Sun hours/day | kWh per kWp a year | Best tilt | Darkest month at 70° | Sunniest place |
|---|---|---|---|---|---|---|
| Ömnögovĭ | 1 | 4.67 | 1,832 | 43° | 3.37 kWh | Dalandzadgad |
| East Gobi Aymag | 1 | 4.65 | 1,844 | 44° | 3.52 kWh | Saynshand |
| Övörhangay | 2 | 4.59 | 1,847 | 44° | 3.57 kWh | Bogd |
| Govi-Altai Province | 1 | 4.54 | 1,818 | 44° | 3.74 kWh | Altai |
| Bayankhongor | 1 | 4.52 | 1,854 | 45° | 3.61 kWh | Bayanhongor |
| Sühbaatar | 1 | 4.41 | 1,810 | 46° | 3.49 kWh | Baruun-Urt |
| Dzabkhan | 1 | 4.36 | 1,819 | 47° | 3.74 kWh | Uliastay |
| Hentiy | 1 | 4.34 | 1,797 | 46° | 3.52 kWh | Undurkhaan |
| Central Aimak | 2 | 4.31 | 1,811 | 47° | 3.55 kWh | Dzuunmod |
| Ulaanbaatar | 2 | 4.27 | 1,792 | 47° | 3.54 kWh | Nalayh |
| East Aimak | 1 | 4.24 | 1,758 | 47° | 3.50 kWh | Choibalsan |
| Arkhangai Province | 1 | 4.22 | 1,756 | 47° | 3.44 kWh | Tsetserleg |
| Hovd | 1 | 4.21 | 1,703 | 45° | 3.49 kWh | Khovd |
| Bulgan | 1 | 4.14 | 1,730 | 47° | 3.59 kWh | Bulgan |
| Orhon | 1 | 4.10 | 1,718 | 47° | 3.57 kWh | Erdenet |
| Bayan-Ölgii Province | 1 | 4.07 | 1,679 | 46° | 3.29 kWh | Ölgii |
| Khövsgöl Province | 1 | 4.06 | 1,716 | 48° | 3.52 kWh | Mörön |
| Darhan Uul | 1 | 3.97 | 1,650 | 47° | 3.52 kWh | Darhan |
| Selenge Province | 2 | 3.91 | 1,630 | 48° | 3.38 kWh | Dzüünharaa |
| Uvs Province | 1 | 3.90 | 1,537 | 43° | 2.37 kWh | Ulaangom |
Largest places in Mongolia at a glance
| Place | Latitude | Best tilt | Off-grid tilt | Sun hours/day (flat) |
|---|---|---|---|---|
| Ulan Bator | 47.9° N | 47° | 62° | 4.24 |
| Erdenet | 49.0° N | 47° | 68° | 4.10 |
| Darhan | 49.5° N | 47° | 69° | 3.97 |
| Choibalsan | 48.1° N | 47° | 64° | 4.24 |
| Nalayh | 47.8° N | 47° | 62° | 4.29 |
| Mörön | 49.6° N | 48° | 72° | 4.06 |
| Bayanhongor | 46.2° N | 45° | 59° | 4.52 |
| Ulaangom | 50.0° N | 43° | 77° | 3.90 |
| Khovd | 48.0° N | 45° | 73° | 4.21 |
| Arvayheer | 46.3° N | 45° | 61° | 4.47 |
| Ölgii | 49.0° N | 46° | 77° | 4.07 |
| Bogd | 44.7° N | 43° | 60° | 4.71 |
| Dalandzadgad | 43.6° N | 43° | 55° | 4.67 |
| Sühbaatar | 50.2° N | 48° | 73° | 3.82 |
| Undurkhaan | 47.3° N | 46° | 61° | 4.34 |
| Tsetserleg | 47.5° N | 47° | 58° | 4.22 |
| Saynshand | 44.9° N | 44° | 61° | 4.65 |
| Dzüünharaa | 48.9° N | 47° | 66° | 4.00 |
| Baruun-Urt | 46.7° N | 46° | 62° | 4.41 |
| Altai | 46.4° N | 44° | 68° | 4.54 |
Daylight and clock time in Mongolia
In Sühbaatar (50.2° N), the northernmost place, the longest day of the year lasts 16 h 25 min and the shortest 8 h 02 min; in Dalandzadgad (43.6° N), the southernmost, 15 h 26 min and 8 h 56 min. Mongolia does not use daylight saving time: the clocks stay the same all year.
| Time zone | Places | UTC offset | Clocks change in 2026 |
|---|---|---|---|
| Asia/Ulaanbaatar | 19 | UTC+8 | no daylight saving time |
| Asia/Hovd | 5 | UTC+7 | no daylight saving time |