Climate - Iasi (Romania)

Iasi: Temperatures - Precipitation - Sunshine hours - Best time - Weather by month


The climate of Iasi is continental, with cold winters and warm summers.
The city is located in the north-east of Romania, a short distance from Moldova.
Winter is cold and gray, with snowfalls and frosts. Sometimes fog can form.
During cold spells, which occur every year, the temperature drops to -17/-18 °C (0/1 °F) or below. The coldest record is -30.5 °C (-23 °F), recorded in January 1963. From 2001 to 2020, the extreme minimum was -27 °C (-16.5 °F), recorded in January 2010.
Summer is warm and sunny, though thunderstorms can break out in the afternoon. Nights are usually cool.
While it is generally not too hot, there can be very hot periods, in which the temperature reach or exceed 35 °C (95 °F). The record heat is 41.5 °C (106.5 °F), recorded in August 2012.

Best Time

To visit Iasi, you can choose the months of May and September. In summer, sometimes the heat is bearable, while at other times, especially in July and August, it can be intense.
However, it is better to bring a sweatshirt for the evening even in midsummer.

Iasi - Climate data

In Iasi, the average temperature of the coldest month (January) is of -1.8 °C (28.7 °F), that of the warmest month (July) is of 22.6 °C (72.8 °F). Here are the average temperatures.
In Iasi, precipitation amounts to 555 millimeters (21.9 inches) per year: so, it is at an intermediate level. It ranges from 25 mm (1 in) in the driest month (February) to 75 mm (3 in) in the wettest ones (June, July) Here is the average precipitation.
In Iasi, there are on average around 2045 sunshine hours per year. Here are the average hours of sunshine per day.

Iasi - Weather by month

Based on the period 1991-2020

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In January, the coldest month of the year, the weather in Iasi is usually very cold. The average temperature is of -1.8 °C (29 °F), with a minimum of -5 °C (23 °F) and a maximum of 1.3 °C (34.3 °F).
On the coldest nights of the month, the temperature usually drops to around -16 °C (3 °F). However, it dropped to -26.9 °C (-16.4 °F) in January 2010.
On the warmest days of the month, the temperature usually reaches around 10 °C (49.5 °F). However, it reached 15.4 °C (59.7 °F) in January 2007.
Precipitation amounts to 30 mm (1.2 in), distributed over 6 days.
The day lasts on average 9 hours and 0 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 28% of the time.
The average humidity is 86%. Hence, the air is normally humid.
The average wind speed is 12 kph (7 mph).

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In February, the weather in Iasi is usually cold. The average temperature is of 0.2 °C (32 °F), with a minimum of -3.6 °C (25.5 °F) and a maximum of 3.9 °C (39 °F).
On the coldest nights of the month, the temperature usually drops to around -14 °C (6.5 °F). However, it dropped to -26.7 °C (-16.1 °F) in February 2012.
On the warmest days of the month, the temperature usually reaches around 14 °C (57 °F). However, it reached 21.4 °C (70.5 °F) in February 1995.
Precipitation amounts to 25 mm (1 in), distributed over 5 days.
The day lasts on average 10 hours and 20 minutes.
There are on average 3.5 hours of sunshine per day. So, the sun shines 32% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 12 kph (8 mph).

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In March, the weather in Iasi is usually quite cold. The average temperature is of 5.2 °C (41 °F), with a minimum of 0.2 °C (32.4 °F) and a maximum of 10.1 °C (50.2 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -7.5 °C (18.5 °F). However, it dropped to -19 °C (-2.2 °F) in March 2018.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 21 °C (70 °F). However, it reached 25.1 °C (77.2 °F) in March 1994.
Precipitation amounts to 35 mm (1.4 in), distributed over 6 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 3.5 hours of sunshine per day. So, the sun shines 30% of the time.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).

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In April, the weather in Iasi is usually mild. The average temperature is of 11.6 °C (53 °F), with a minimum of 5.6 °C (42.1 °F) and a maximum of 17.5 °C (63.5 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -1 °C (30 °F). However, it dropped to -5.9 °C (21.4 °F) in April 2020.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 26 °C (78.5 °F). However, it reached 31.8 °C (89.2 °F) in April 2013.
Precipitation amounts to 45 mm (1.8 in), distributed over 7 days.
The day lasts on average 13 hours and 40 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 63%.
The average wind speed is 12 kph (8 mph).

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In May, the weather in Iasi is usually very mild. The average temperature is of 17 °C (63 °F), with a minimum of 10.7 °C (51.3 °F) and a maximum of 23.3 °C (73.9 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 4 °C (39.5 °F). However, it dropped to -0.6 °C (30.9 °F) in May 2000.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 30.5 °C (87 °F). However, it reached 36 °C (96.8 °F) in May 2007.
Precipitation amounts to 55 mm (2.2 in), distributed over 8 days.
The day lasts on average 15 hours and 5 minutes. So the days are long.
There are on average 7.5 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 64%.
The average wind speed is 11 kph (7 mph).

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In June, the weather in Iasi is usually warm. The average temperature is of 20.8 °C (70 °F), with a minimum of 14.7 °C (58.5 °F) and a maximum of 27 °C (80.6 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 9 °C (48.5 °F). However, it dropped to 6.1 °C (43 °F) in June 2020.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 33 °C (92 °F). However, it reached 37.9 °C (100.2 °F) in June 2012.
Precipitation amounts to 75 mm (3 in), distributed over 8 days.
The day lasts on average 15 hours and 55 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 9 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 66%.
The average wind speed is 10 kph (6 mph).

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In July, the warmest month of the year, the weather in Iasi is usually warm to hot. The average temperature is of 22.6 °C (73 °F), with a minimum of 16.3 °C (61.3 °F) and a maximum of 29 °C (84.2 °F).
On the coldest nights of the month, the temperature usually drops to around 11.5 °C (52.5 °F). However, it dropped to 7.6 °C (45.7 °F) in July 1992.
On the warmest days of the month, the temperature usually reaches around 35 °C (95 °F). However, it reached 40.1 °C (104.2 °F) in July 2007.
Precipitation amounts to 75 mm (3 in), distributed over 8 days.
The day lasts on average 15 hours and 25 minutes. So the days are long.
There are on average 10 hours of sunshine per day. So, the sun shines 65% of the time.
The average humidity is 65%.
The average wind speed is 9 kph (6 mph).

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In August, the weather in Iasi is usually warm. However, there are remarkable differences between night and day. The average temperature is of 22.2 °C (72 °F), with a minimum of 15.6 °C (60.1 °F) and a maximum of 28.8 °C (83.8 °F).
On the coldest nights of the month, the temperature usually drops to around 10 °C (50 °F). However, it dropped to 6.4 °C (43.5 °F) in August 2017.
On the warmest days of the month, the temperature usually reaches around 35.5 °C (95.5 °F). However, it reached 41.3 °C (106.3 °F) in August 2012.
Precipitation amounts to 50 mm (2 in), distributed over 6 days.
The day lasts on average 14 hours and 5 minutes. So the days are long.
There are on average 8.5 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 64%.
The average wind speed is 9 kph (6 mph).

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In September, the weather in Iasi is usually very mild. The average temperature is of 17.0 °C (63 °F), with a minimum of 11 °C (51.8 °F) and a maximum of 23.1 °C (73.6 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 4.5 °C (40 °F). However, it dropped to -0.5 °C (31.1 °F) in September 2018.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 30 °C (86.5 °F). However, it reached 37.4 °C (99.3 °F) in September 2015.
Precipitation amounts to 50 mm (2 in), distributed over 6 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 57% of the time.
The average humidity is 68%.
The average wind speed is 10 kph (6 mph).

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In October, the weather in Iasi is usually mild. The average temperature is of 11.2 °C (52 °F), with a minimum of 6.1 °C (43 °F) and a maximum of 16.3 °C (61.3 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -2 °C (28 °F). However, it dropped to -6.7 °C (19.9 °F) in October 1997.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 26.5 °C (79.5 °F). However, it reached 32.1 °C (89.8 °F) in October 2006.
Precipitation amounts to 45 mm (1.8 in), distributed over 6 days.
The day lasts on average 10 hours and 50 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).

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In November, the weather in Iasi is usually quite cold. The average temperature is of 5.2 °C (41 °F), with a minimum of 1.7 °C (35.1 °F) and a maximum of 8.8 °C (47.8 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -6.5 °C (20.5 °F). However, it dropped to -21.1 °C (-6 °F) in November 1993.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 18.5 °C (65.5 °F). However, it reached 25.6 °C (78.1 °F) in November 2019.
Precipitation amounts to 35 mm (1.4 in), distributed over 5 days.
The day lasts on average 9 hours and 20 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 26% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is 11 kph (7 mph).

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In December, the weather in Iasi is usually very cold. The average temperature is of -0.2 °C (32 °F), with a minimum of -3.3 °C (26.1 °F) and a maximum of 2.8 °C (37 °F).
On the coldest nights of the month, the temperature usually drops to around -13 °C (8 °F). However, it dropped to -27.2 °C (-17 °F) in December 1996.
On the warmest days of the month, the temperature usually reaches around 12 °C (54 °F). However, it reached 17.9 °C (64.2 °F) in December 2008.
Precipitation amounts to 30 mm (1.2 in), distributed over 6 days.
The day lasts on average 8 hours and 35 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 2 hours of sunshine per day. So, the sun shines 21% of the time.
The average humidity is 87%. Hence, the air is normally humid.
The average wind speed is 11 kph (7 mph).