Climate averages 1991–2020
Gyumri weather
by month.
See how the year changes. August has the highest average daily maximum; September has the lowest average monthly rainfall.
Pleasant-weather months by our simple rule: September
Long-term climate patterns, not a forecast for a particular trip.
Across the year Gyumri averages a daytime high of 11.8°C and a nighttime low of 1.3°C, with about 678 mm of precipitation on roughly 135 days. August is the warmest month (average high 24.6°C) and January the coolest (-2.0°C). May is the wettest month with 119 mm; September is the driest with 28 mm.
Months with pleasant weather by a simple rule (average high between 18°C and 29°C, average low of at least 5°C and at most 8 rain days): September. This looks at temperature and rain only, not humidity, wind, sea temperature or crowds.
The annual picture
A year in Gyumri
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Gyumri climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -2.0°C-10.9°C | -10.9°C | 32 | 7.3 | 9.610 h |
| February | -0.3°C-9.5°C | -9.5°C | 37 | 8.0 | 10.611 h |
| March | 4.8°C-4.6°C | -4.6°C | 69 | 13.3 | 11.912 h |
| April | 11.4°C0.6°C | 0.6°C | 106 | 18.1 | 13.313 h |
| May | 16.5°C5.1°C | 5.1°C | 119 | 20.7 | 14.414 h |
| June | 20.8°C8.7°C | 8.7°C | 79 | 15.4 | 15.015 h |
| July | 24.0°C11.7°C | 11.7°C | 57 | 12.8 | 14.815 h |
| August | 24.6°C11.8°C | 11.8°C | 40 | 10.6 | 13.814 h |
| September | 20.9°C8.4°C | 8.4°C | 28 | 6.7 | 12.513 h |
| October | 14.7°C4.3°C | 4.3°C | 43 | 8.7 | 11.211 h |
| November | 6.3°C-1.9°C | -1.9°C | 35 | 6.6 | 10.010 h |
| December | 0.1°C-7.8°C | -7.8°C | 34 | 6.8 | 9.39 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
Nearby cities
- VanadzorArmenia · 55 kmHigh 12.1°C · Low 2.6°C · 1,060 mm rain a year
- KarsTurkey · 68 kmHigh 11.9°C · Low 0.0°C · 717 mm precipitation a year
- YerevanArmenia · 89 kmHigh 16.2°C · Low 5.0°C · 315 mm rain a year
- IğdırTurkey · 98 kmHigh 18.2°C · Low 6.0°C · 482 mm rain a year
- RustaviGeorgia · 128 kmHigh 18.7°C · Low 8.1°C · 349 mm rain a year
- TbilisiGeorgia · 130 kmHigh 17.5°C · Low 7.2°C · 691 mm rain a year
- AğrıTurkey · 138 kmHigh 13.7°C · Low 1.9°C · 558 mm precipitation a year
- DoğubayazıtTurkey · 140 kmHigh 15.0°C · Low 3.9°C · 437 mm rain a year
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC+4, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at 40.80°, 43.80° (4 km from the city centre), adjusted up by 0.1°C for the difference between the city's elevation (1,553 m) and the cell's (1,564 m). Rain comes from the 0.25° cell at 40.75°, 43.75°. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.