Climate and Average Weather Year Round in Romania

We show the climate in Romania by comparing the average weather in 4 representative places: Bucharest, Constanţa, Iaşi, and Cluj-Napoca.

You can add or remove cities to customize the report to your liking. See all locations in Romania.

You can drill down to a specific season, month, and even day by clicking the graphs or using the navigation panel.

Average High and Low Temperature in Romania

Average High and Low Temperature in RomaniaJanFebMarAprMayJunJulAugSepOctNovDec20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F6324863628833933572178NowNowBucharestBucharestConstanţaConstanţaIaşiIaşiCluj-NapocaCluj-Napoca
The daily average high and low air temperature at 2 meters above the ground.
HighJanFebMarAprMayJunJulAugSepOctNovDec
Bucharest 36°F41°F52°F63°F74°F81°F85°F84°F75°F63°F49°F39°F
Constanţa 39°F42°F49°F59°F69°F77°F82°F81°F73°F63°F51°F42°F
Iaşi 34°F37°F48°F61°F72°F78°F82°F81°F72°F59°F46°F37°F
Cluj-Napoca 32°F37°F48°F59°F68°F73°F77°F76°F68°F57°F44°F34°F
LowJanFebMarAprMayJunJulAugSepOctNovDec
Bucharest 25°F27°F34°F43°F52°F59°F63°F61°F54°F44°F35°F28°F
Constanţa 28°F29°F35°F43°F52°F60°F64°F63°F56°F48°F39°F31°F
Iaşi 23°F25°F33°F43°F52°F58°F61°F60°F52°F43°F34°F26°F
Cluj-Napoca 21°F23°F31°F39°F48°F54°F57°F55°F48°F39°F31°F24°F

Bucharest

Average Hourly Temperature in BucharestJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldvery coldcoldcoldcoolwarmfreezingcomfortablecomfortablefreezing

Constanţa

Average Hourly Temperature in ConstanţaJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldcoldcoldcoolcoolcomfortablewarm

Iaşi

Average Hourly Temperature in IaşiJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldcoldcoldcoolwarmvery coldcomfortablecomfortablefreezing

Cluj-Napoca

Average Hourly Temperature in Cluj-NapocaJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingfreezingvery coldvery coldcoldcoldcoolcomfortablewarm
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chance of Clearer Skies in Romania

Chance of Clearer Skies in RomaniaJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%854189397844NowNowBucharestBucharestConstanţaConstanţaIaşiIaşiCluj-NapocaCluj-Napoca
The percentage of time the sky is clear, mostly clear, or partly cloudy (i.e., less than 60% of the sky is covered by clouds).
Clearer SkiesJanFebMarAprMayJunJulAugSepOctNovDec
Bucharest 44%44%47%50%57%69%83%80%68%56%46%42%
Constanţa 40%40%45%52%61%72%86%84%70%56%44%40%
Iaşi 40%39%44%48%57%63%74%74%62%55%43%41%
Cluj-Napoca 46%45%47%47%52%62%74%72%59%54%47%45%

Daily Chance of Precipitation in Romania

Daily Chance of Precipitation in RomaniaJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%2912211131937NowNowBucharestBucharestConstanţaConstanţaIaşiIaşiCluj-NapocaCluj-Napoca
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
Bucharest 4.3d4.1d4.3d5.7d7.6d8.6d7.1d5.6d4.8d4.4d4.5d5.1d
Constanţa 3.8d3.3d4.0d4.5d4.8d6.0d4.5d3.8d4.3d4.9d4.6d4.6d
Iaşi 3.1d3.1d3.9d6.0d7.3d8.7d8.1d5.9d5.0d4.4d3.8d4.0d
Cluj-Napoca 3.8d3.5d4.5d6.9d9.6d10.6d9.0d7.1d6.1d5.7d4.9d4.6d

Average Monthly Rainfall in Romania

Average Monthly Rainfall in RomaniaJanFebMarAprMayJunJulAugSepOctNovDec0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in2.00.51.52.40.22.5NowNowBucharestBucharestConstanţaConstanţaIaşiIaşiCluj-NapocaCluj-Napoca
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
RainfallJanFebMarAprMayJunJulAugSepOctNovDec
Bucharest 0.5″0.5″0.8″1.3″1.5″2.0″1.7″1.3″1.4″1.3″1.0″0.8″
Constanţa 0.7″0.6″0.7″0.9″0.9″1.3″1.0″0.9″1.3″1.4″1.2″0.9″
Iaşi 0.2″0.3″0.6″1.3″1.6″2.3″2.1″1.5″1.5″1.2″0.8″0.5″
Cluj-Napoca 0.3″0.3″0.7″1.4″1.9″2.5″2.3″1.8″1.4″1.2″0.9″0.6″

Average Monthly Snowfall in Romania

Average Monthly Snowfall in RomaniaJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in4.32.23.12.6NowNowBucharestBucharestConstanţaConstanţaIaşiIaşiCluj-NapocaCluj-Napoca
The average snowfall accumulated over the course of a sliding 31-day period centered on the day in question.
SnowfallJanFebMarAprMayJunJulAugSepOctNovDec
Bucharest 4.1″3.4″1.2″0.2″0.0″0.0″0.0″0.0″0.0″0.1″1.4″3.3″
Constanţa 2.2″1.5″0.6″0.1″0.0″0.0″0.0″0.0″0.0″0.0″0.3″1.6″
Iaşi 3.0″3.0″1.1″0.1″0.0″0.0″0.0″0.0″0.0″0.2″1.4″2.9″
Cluj-Napoca 2.5″2.0″0.8″0.3″0.0″0.0″0.0″0.0″0.0″0.1″0.8″2.1″

Hours of Daylight in Romania

Hours of Daylight in RomaniaJanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr15.58.8NowNowBucharestBucharestConstanţaConstanţaIaşiIaşiCluj-NapocaCluj-Napoca
The number of hours during which the Sun is at least partly above the horizon.
DaylightJanFebMarAprMayJunJulAugSepOctNovDec
Bucharest 9.3h10.5h12.0h13.5h14.8h15.5h15.1h13.9h12.4h10.9h9.6h8.9h
Constanţa 9.3h10.5h12.0h13.5h14.8h15.5h15.1h13.9h12.4h10.9h9.6h8.9h
Iaşi 9.0h10.3h12.0h13.7h15.1h15.9h15.4h14.1h12.5h10.8h9.3h8.6h
Cluj-Napoca 9.0h10.4h12.0h13.7h15.1h15.8h15.4h14.1h12.5h10.8h9.4h8.6h

Chance of Muggy Conditions in Romania

Chance of Muggy Conditions in RomaniaJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%2248187NowNowBucharestBucharestConstanţaConstanţaCluj-NapocaCluj-Napoca
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
Bucharest 0.0d0.0d0.0d0.0d0.4d2.9d5.9d4.1d0.6d0.1d0.0d0.0d
Constanţa 0.0d0.0d0.0d0.0d0.8d6.6d13.3d11.7d4.1d0.6d0.0d0.0d
Iaşi 0.0d0.0d0.0d0.0d0.2d1.8d4.8d2.9d0.2d0.0d0.0d0.0d
Cluj-Napoca 0.0d0.0d0.0d0.0d0.0d0.8d1.9d1.2d0.1d0.0d0.0d0.0d

Average Wind Speed in Romania

Average Wind Speed in RomaniaJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph8.66.012.78.79.97.27.45.1NowNowBucharestBucharestConstanţaConstanţaIaşiIaşiCluj-NapocaCluj-Napoca
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
Bucharest 7.98.38.48.07.06.46.26.26.97.07.37.7
Constanţa 12.412.411.610.49.29.08.89.110.111.011.712.3
Iaşi 9.29.79.89.18.28.17.77.58.28.48.98.8
Cluj-Napoca 6.37.07.36.75.95.95.65.35.85.86.16.0

Average Water Temperature in Romania

Average Water Temperature in RomaniaJanFebMarAprMayJunJulAugSepOctNovDec40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°FNaN7642NaNNaNNowNowConstanţaConstanţa
The daily average wide-area surface water temperature.
Water Temp.JanFebMarAprMayJunJulAugSepOctNovDec
Constanţa 44°F42°F44°F49°F60°F69°F74°F75°F71°F63°F55°F48°F

Tourism Score in Romania

Tourism Score in RomaniaJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.40.17.4NowNowBucharestBucharestConstanţaConstanţaIaşiIaşiCluj-NapocaCluj-Napoca
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score in Romania

Beach/Pool Score in RomaniaJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.66.85.3NowNowBucharestBucharestIaşiIaşiCluj-NapocaCluj-Napoca
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season in Romania

Growing Season in RomaniaJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowBucharestBucharestConstanţaConstanţaIaşiIaşiCluj-NapocaCluj-Napoca
The percentage chance that a given day is within the growing season, defined as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Growing Degree Days in Romania

Growing Degree Days in RomaniaJanFebMarAprMayJunJulAugSepOctNovDec500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°F3,000°F3,000°F3,500°F3,500°FNowNowBucharestBucharestConstanţaConstanţaIaşiIaşiCluj-NapocaCluj-Napoca
The average growing degree days accumulated over the course of the year, where growing degree days are defined as the integral of warmth above a base temperature (50°F in this case).

Average Daily Incident Shortwave Solar Energy in Romania

Average Daily Incident Shortwave Solar Energy in RomaniaJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh7.21.46.8NowNowBucharestBucharestConstanţaConstanţaIaşiIaşiCluj-NapocaCluj-Napoca
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec
Bucharest 1.72.53.85.16.26.97.06.24.73.11.91.4
Constanţa 1.62.43.85.26.57.17.26.44.83.11.91.4
Iaşi 1.52.33.54.96.16.66.75.94.42.91.71.2
Cluj-Napoca 1.62.43.74.95.96.66.75.94.42.91.81.3

This report illustrates the typical weather for Bucharest, Constanţa, Iaşi, and Cluj-Napoca year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used on this page vary between places and are discussed in detail on each place's dedicated page:

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

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