Ostrów, Poland — Weather in May 2027

Monthly climate averages for Ostrów, Poland. Based on 10-year ERA5 reanalysis data.

Cfb Oceanic
7 /10
Good

May is a good month in Ostrów

Climate Overview

Ostrów, Poland in May has mild conditions, with highs averaging 18.8°C (66°F) and noticeably cooler mornings. Rain falls on about 14 days this month.

This month falls at the end of Spring.

Daily highs in May gradually rise from around 18°C (65°F) at the start to 21°C (70°F) by month's end.

Rainfall is heaviest during the last third of the month, while the first third tends to be drier.

Expect around 10.3h of sunshine at the start of May, increasing to 11.9h by the end.

The warmest days tend to fall around the 29th, averaging 21.1°C (70°F).

Compared to April, this month is about 5°C warmer with 2 more rainy days. Temperatures will rise further into June.

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Monthly May Averages

Temperature
19°C / 9°C
Feels Like
17°C / 7°C
Rain
14 days · 82 mm
Sunshine
10.7h / day
Humidity
70% — Humid
Wind
16 km/h
Wind Direction
WNW (294°)
Gusts
35 km/h
Daylight
15.5 h
Cloud Cover
61%
Clear Sky Days
2.5
UV Index
5.8 — High
Dew Point
9°C — Dry
Moon Phase
Waxing Gibbous · 66%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

28°C 24°C 20°C 16°C 12°C 8°C 4°C 0°C 151015202531
HighLow

Daily Precipitation

0 mm 2 mm 4 mm 6 mm 8 mm 151015202531
Rainfall

Daily Sunshine

0h 4h 8h 12h 16h 151015202531
Sunshine

Daily Wind Speed

0 5 10 15 20 25 151015202531
Wind Speed
Sun Position
Sunrise 04:49
Daylight 15.4h
Sunset 20:14

What to Expect

Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.

1 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

January
Poor
Temp
2°C / -3°C
Feels Like
-2°C / -8°C
Rain
13days (62 mm) Wet
Sun
3.7h Poor
Humidity
84% Humid
UV
1.3 Low
Snow Days
13days
View Details
February
Poor
Temp
5°C / -1°C
Feels Like
1°C / -6°C
Rain
12days (61 mm) Wet
Sun
5h Fair
Humidity
79% Humid
UV
1.9 Low
Snow Days
9days
View Details
March
Poor
Temp
9°C / 1°C
Feels Like
5°C / -3°C
Rain
11days (48 mm) Wet
Sun
7.5h Good
Humidity
73% Muggy
UV
3.4 Moderate
Snow Days
5days
View Details
April
Fair
Temp
14°C / 5°C
Feels Like
11°C / 2°C
Rain
12days (65 mm) Wet
Sun
9.2h Good
Humidity
69% Muggy
UV
4.7 Moderate
Snow Days
3days
View Details
May best
Good
Temp
19°C / 9°C
Feels Like
17°C / 7°C
Rain
14days (82 mm) Wet
Sun
10.7h Excellent
Humidity
70% Muggy
UV
5.8 High
View Details
June best
Excellent
Temp
24°C / 15°C
Feels Like
24°C / 14°C
Rain
13days (75 mm) Wet
Sun
12.2h Excellent
Humidity
70% Muggy
UV
6.4 High
View Details
July best
Excellent
Temp
25°C / 16°C
Feels Like
25°C / 16°C
Rain
15days (105 mm) Wet
Sun
11.7h Excellent
Humidity
70% Muggy
UV
6.2 High
View Details
August best
Excellent
Temp
25°C / 16°C
Feels Like
26°C / 16°C
Rain
12days (93 mm) Wet
Sun
10.7h Excellent
Humidity
71% Muggy
UV
5.6 High
View Details
September best
Good
Temp
20°C / 12°C
Feels Like
19°C / 11°C
Rain
11days (88 mm) Wet
Sun
8.1h Good
Humidity
75% Muggy
UV
4.3 Moderate
View Details
October
Fair
Temp
14°C / 8°C
Feels Like
12°C / 5°C
Rain
11days (72 mm) Wet
Sun
6.4h Fair
Humidity
78% Humid
UV
2.6 Moderate
View Details
November
Poor
Temp
8°C / 3°C
Feels Like
5°C / -1°C
Rain
11days (61 mm) Wet
Sun
4.1h Fair
Humidity
84% Humid
UV
1.4 Low
Snow Days
5days
View Details
December
Poor
Temp
4°C / 0°C
Feels Like
0°C / -5°C
Rain
13days (64 mm) Wet
Sun
2.9h Poor
Humidity
86% Very Muggy
UV
1 Low
Snow Days
10days
View Details
Month Temp Feels Like Rain Sun Humidity UV Status
January 2°C / -3°C -2°C / -8°C 13days (62 mm) Wet 3.7h Poor 84% Humid 1.3 Low Poor View Details
February 5°C / -1°C 1°C / -6°C 12days (61 mm) Wet 5h Fair 79% Humid 1.9 Low Poor View Details
March 9°C / 1°C 5°C / -3°C 11days (48 mm) Wet 7.5h Good 73% Muggy 3.4 Moderate Poor View Details
April 14°C / 5°C 11°C / 2°C 12days (65 mm) Wet 9.2h Good 69% Muggy 4.7 Moderate Fair View Details
May best 19°C / 9°C 17°C / 7°C 14days (82 mm) Wet 10.7h Excellent 70% Muggy 5.8 High Good View Details
June best 24°C / 15°C 24°C / 14°C 13days (75 mm) Wet 12.2h Excellent 70% Muggy 6.4 High Excellent View Details
July best 25°C / 16°C 25°C / 16°C 15days (105 mm) Wet 11.7h Excellent 70% Muggy 6.2 High Excellent View Details
August best 25°C / 16°C 26°C / 16°C 12days (93 mm) Wet 10.7h Excellent 71% Muggy 5.6 High Excellent View Details
September best 20°C / 12°C 19°C / 11°C 11days (88 mm) Wet 8.1h Good 75% Muggy 4.3 Moderate Good View Details
October 14°C / 8°C 12°C / 5°C 11days (72 mm) Wet 6.4h Fair 78% Humid 2.6 Moderate Fair View Details
November 8°C / 3°C 5°C / -1°C 11days (61 mm) Wet 4.1h Fair 84% Humid 1.4 Low Poor View Details
December 4°C / 0°C 0°C / -5°C 13days (64 mm) Wet 2.9h Poor 86% Very Muggy 1 Low Poor View Details

What to Wear

Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

Warm evening layerUmbrellaWaterproof jacketWaterproof shoes

Frequently Asked Questions

May is typically good for visiting Ostrów, with average highs of 19°C (66°F) and around 14 rainy days. Ostrów, Poland in May has mild conditions, with highs averaging 18.8°C (66°F) and noticeably cooler mornings. Rain falls
Ostrów typically sees around 14 rainy days in May with 82 mm (3.2 in) of total rainfall. Pack a waterproof jacket.
Nights in Ostrów during May are cool at around 9°C (49°F). Bring a jacket or sweater for evenings.
With highs of 19°C (66°F) and lows of 9°C (49°F) in May, we recommend: Warm evening layer, Umbrella, Waterproof jacket, Waterproof shoes. Comfortable walking shoes are essential.
Yes, May offers some of the best weather conditions in Ostrów with comfortable temperatures and lower chances of rain.
The average UV index in Ostrów during May is 6 (high). Wear sunscreen SPF 30+, a hat, and sunglasses. Limit direct sun exposure between 10 AM and 4 PM.
Ostrów gets approximately 16 hours of daylight per day in May, with around 11 hours of sunshine.
Snow is uncommon in Ostrów during May based on 10-year climate averages.

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