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Bacau in May: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Bacau in May will be like? Take a look at our weather guide for Bacau, based on historical data.
Check flight prices to Bacau on Avionero:
May

Weather in Bacau in May 2025

Good Weather
Mild
🌧️
Rainy
Planning a trip to Bacau in May? You are in luck! The weather is generally good, with an average maximum temperature of +22°C and approximately 7 sunny days. Just be prepared for some rain, as there are usually around 15 rainy days and 58 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+22°C
Avg. max. temperature
0°C
Min.
+34°C
Max.
58 mm
Total precipitation
69%
Avg. humidity
2 m/s
Avg. wind
7 ☀️
Sunny Days
7 ⛅️
Cloudy
15 🌦
Rainy
Our opinion: Bacau has good weather in May.

Average temperature in Bacau in May

Here are the expected maximum, average and minimum temperatures in Bacau for May based on the historical data.
Last Year
Historical Data

Going from a maximum of +26°C during the day to a minimum of +5°C during the night, the temperature in May averages around +21°C.

The average maximum temperature goes up 33% by the end of the month, compared with the beginning of the month, from +19°C to +26°C.

Is Bacau warm or cold in May?

Bacau is typically mild in May.

Maximum temperatures go up compared to the previous month from +16°C to +22°C. The minimum temperature also goes up from +5°C to +11°C.

Pack a light jacket as it will be warm in the day and cool in the evenings.

Take a look at how May is compared to other months in Bacau:

Climate in Bacau in May

Bacau weather looks like this, on average, in May and the surrounding months.
AprilMayJune
Avg. temperature
+16°C+22°C+25°C
Min. temperature
-6°C0°C+7°C
Max. temperature
+31°C+34°C+37°C
Rainfall
45 mm58 mm78 mm
Wind
2 m/s2 m/s2 m/s
Humidity
69%69%71%
Air pressure
1013 HPa1013 HPa1012 HPa
Sunny days
676
Cloudy days
977
Rainy days
131514
Snowy days
100

May often has better weather than April. It’s getting warmer as May arrives. The average maximum temperature goes up from +16°C to +22°C during the day. Prepare for more rain. Average rainfall goes from 45 mm to 58 mm. Humidity levels don’t change as the month goes on, averaging around 69%. The average wind speed doesn’t change much during May, staying around 2 m/s. The good news is there are likely to be more sunny days in May, from 6 to 7.

June brings much the same weather, it remains good.

Wind

Wind speed in Bacau in May based on historical data.
Last Year
Historical Data

The average wind speed is 4 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Bacau is gradually decreasing during May, going from 3 m/s to 2 m/s over the course of the month.

Rain

Amount of rainfall in mm during May in Bacau based on historical data.
Last Year
Historical Data
Typically, there is a 26% chance of rain on an average day in May, with total rainfall of approximately 30 mm. The maximum amount of rainfall per day is around 12 mm, which is considered light rain. On average, there are about 8 rainy days during May, so prepare to bring an umbrella.
May is one of the rainiest months in Bacau, here is a comparison with other months, total mm:
Bacau wettest month is June, where a typical day has a 47% chance of precipitation and 78 mm of rainfall per day. January, on the other hand, is the driest month with a mere 6% chance of precipitation and 4 mm of rainfall per day.

How was the weather last May in Bacau?

This is the weather in Bacau in May 2023:
1 May
☀️
+19°C
2 May
☀️
+22°C
3 May
☀️
+21°C
4 May
🌧️
+16°C
5 May
☁️
+19°C
6 May
☀️
+20°C
7 May
🌧️
+18°C
8 May
🌧️
+9°C
9 May
☁️
+11°C
10 May
☀️
+15°C
11 May
☀️
+17°C
12 May
☀️
+15°C
13 May
☀️
+18°C
14 May
☀️
+21°C
15 May
☀️
+21°C
16 May
☀️
+22°C
17 May
☀️
+23°C
18 May
☀️
+23°C
19 May
☀️
+24°C
20 May
☀️
+24°C
21 May
☀️
+24°C
22 May
☀️
+23°C
23 May
☀️
+24°C
24 May
☀️
+26°C
25 May
☀️
+25°C
26 May
☀️
+25°C
27 May
☁️
+23°C
28 May
🌧️
+22°C
29 May
☀️
+25°C
30 May
☀️
+26°C
31 May
☀️
+26°C
In May 2023 Bacau had 24 sunny days, 3 cloudy days, and 4 rainy days. The average maximum temperature was +21°C, with an absolute maximum of +26°C and a minimum of +9°C. The average humidity was 63%, with a maximum of 100% and a minimum of 27%. The average wind speed was 4 m/s, with a maximum of 11 m/s and a minimum of 0 m/s.
Are you planning a trip in May?

Climate Change over Years

This is how Bacau climate have been changing during last 43 years period.

The climate in Bacau in May has not changed much over the last 43 years.

The average temperature was the lowest in 1980 (+12°C) and the highest in 2023 (+18°C). The driest year was 2003 with only 239 mm of rainfall, and the wettest year was 2016 with 680 mm.

FAQ

Frequently asked questions about the weather in Bacau in May:

Is May a good time to visit Bacau?

May is a really good time to go to Bacau. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Bacau.

Can you sunbathe in Bacau in May?

May has mild temperatures in Bacau. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Is Bacau rainy in May?

Bacau is often rainy in May. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Bacau in May?

Usually, it’s not very sunny in Bacau in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Romania

Check out the weather for other cities in Romania.

Monthly weather in Bacau

Source of the data

For this page, we’ve looked at the typical weather in Bacau, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.