Which is the hottest month in Bialystok?

The hottest time of year in Bialystok is normally July. Expect maximum daytime temperatures to reach 24°C.

Which month has the most rain in Bialystok?

In terms of rainfall, July is usually the wettest month in Bialystok with 72mm on average. There are normally 13 days in July with some rain.

When is it sunniest in Bialystok?

The sunniest time of year in Bialystok is normally August with bright sunshine on average for 49% of daylight hours; that's 7 hours of sunshine per day.

Best time to visit Bialystok

The best times to visit Bialystok, Poland for warm and sunny weather are in June and July based on our default weather conditions. Update your weather preferences to see which months best match.

Bialystok by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Poland

Jet2holidays: £100pp off 2026 holidays

Discount Code

Save £100 per person on holidays (£200 per couple)
Book online with latest Jet2holiday promo code
Travel before 31st October 2026 (inclusive)

Show discount code

******MER

Redeem Jet2holidays discount code >>

Expires at 23:59 on Sunday 31st May 2026 · View all Jet2holidays offers

When is the best time to visit Bialystok for warm and sunny weather?

The best times to visit Bialystok, Poland for warm and sunny weather are in June and July when you can expect the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 8 hours or more [remove]

Change the criteria to reflect your weather preferences.

0
Jan
0.5
Feb
1.5
Mar
1.5
Apr
4
May
5
Jun
5
Jul
4.5
Aug
2
Sep
1
Oct
0
Nov
0
Dec

Change criteria

Max Day Temperature (°C)

-3
Jan
-1
Feb
5
Mar
12
Apr
19
May
22
Jun
23
Jul
22
Aug
17
Sep
11
Oct
5
Nov
0
Dec

Hours of Sunshine (daily)

1
Jan
2
Feb
4
Mar
5
Apr
7
May
8
Jun
8
Jul
7
Aug
5
Sep
3
Oct
1
Nov
1
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Poland (Bialystok) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)