Gniezno in Summer
In summer (June, July and August), Gniezno sees average daytime highs around 23°C and overnight lows near 13°C, with 208 mm of rain over about 33 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 23°C. The sky is clear or mostly clear about 24% of the time across summer, and the air most often feels dry.
Summer is Gniezno's best season of the year to visit on our travel score. For the whole year in context, see Gniezno's year-round climate.
- Avg daytime high
- 23°C
- warmest season of the year
- Avg overnight low
- 13°C
- Rainfall
- 208 mm
- 33 wet days
- Avg wind
- 12 km/h
- Travel score
- 6.6
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Gniezno in Summer
Across summer, daytime highs hold fairly steady around 23°C.
A typical summer day in Gniezno reaches about 23°C and drops to 13°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Gniezno
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Gniezno weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 2° / -3° | 41 | 10.1 | 4.7 | 8 | 0.0 |
| Feb | 3° / -2° | 34 | 8.5 | 4.2 | 9.5 | 0.0 |
| Mar | 7° / 0° | 45 | 10.7 | 2.7 | 11.5 | 1.0 |
| Apr | 13° / 4° | 33 | 8 | 0.4 | 13.6 | 4.0 |
| May | 18° / 9° | 54 | 10.7 | 0 | 15.5 | 5.8 |
| Jun | 22° / 12° | 61 | 11 | 0 | 16.5 | 6.3 |
| Jul | 24° / 14° | 86 | 11.9 | 0 | 16.1 | 6.6 |
| Aug | 24° / 14° | 61 | 10.2 | 0 | 14.5 | 6.8 |
| Sep | 19° / 10° | 49 | 9.4 | 0 | 12.4 | 5.9 |
| Oct | 13° / 6° | 41 | 9 | 0.2 | 10.3 | 3.5 |
| Nov | 7° / 2° | 38 | 9 | 1.5 | 8.5 | 0.8 |
| Dec | 3° / -1° | 41 | 9.7 | 3.2 | 7.5 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 24% of the time across summer.
Chance of precipitation in Summer
Gniezno gets around 208 mm of rain over 33 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 12 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 16 h 12 min in early June to 13 h 30 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.1 kWh/m².
Is summer a good time to visit Gniezno?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Gniezno for sightseeing.
What to pack for Gniezno in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Gniezno sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 33 days see rain.
UV index in Gniezno in Summer
Clear-sky midday UV across summer averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Gniezno peaks around June 18 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 20 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 1 | 3 | 4 | 5 | 7 | 6 | 6 | 4 | 2 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | High | High | Moderate | Low | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 1 | Low |
| Mar | 3 | Moderate |
| Apr | 4 | Moderate |
| May | 5 | High |
| Jun | 7 | High |
| Jul | 6 | High |
| Aug | 6 | High |
| Sep | 4 | Moderate |
| Oct | 2 | Low |
| Nov | 1 | Low |
| Dec | 1 | Low |
Where is Gniezno?
Gniezno sits at 52.5°N, 17.6°E, 120 m above sea level, in Poland. The nearest listed city is Września, 23 km away.
Topography around Gniezno
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Gniezno.
Within 3 km, the terrain around Gniezno has only modest variations in elevation — a maximum elevation change of 45 m around an average of 120 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 62 m; within 80 km, only modest variations in elevation — a maximum elevation change of 201 m.
The land around Gniezno is covered by cropland (32%), artificial surfaces (29%) and trees (20%) within 3 km, cropland (63%) and trees (20%) within 16 km, and cropland (57%) and trees (27%) within 80 km.
Poland travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / E
- 230 V · 50 Hz
- Prices
- ≈ 52% of US
- price level, 2025
- GDP per capita
- $28,420
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 89%
- of population, 2024
- Homicide rate
- 0.8
- per 100k, 2023
- Road deaths
- 9.4
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very high
- EF EPI 600
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Gniezno (52.5348°, 17.5826°, elevation 120 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.