Hajnówka in Summer
In summer (June, July and August), Hajnówka sees average daytime highs around 23°C and overnight lows near 13°C, with 220 mm of rain over about 36 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 23% of the time across summer, and the air most often feels dry.
Summer is Hajnówka's best season of the year to visit on our travel score. For the whole year in context, see Hajnówka's year-round climate.
- Avg daytime high
- 23°C
- warmest season of the year
- Avg overnight low
- 13°C
- Rainfall
- 220 mm
- 36 wet days
- Avg wind
- 11 km/h
- Travel score
- 6.4
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Hajnówka in Summer
Across summer, daytime highs hold fairly steady around 23°C.
A typical summer day in Hajnówka 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 Hajnówka
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.
Hajnówka 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 | -1° / -5° | 39 | 10 | 7.2 | 7.9 | 0.0 |
| Feb | 1° / -5° | 36 | 9.3 | 6.7 | 9.5 | 0.0 |
| Mar | 6° / -2° | 41 | 10.2 | 4.2 | 11.5 | 0.5 |
| Apr | 13° / 3° | 48 | 9.8 | 1.3 | 13.6 | 3.5 |
| May | 19° / 8° | 70 | 11.9 | 0.1 | 15.5 | 5.7 |
| Jun | 22° / 11° | 71 | 12 | 0 | 16.5 | 6.2 |
| Jul | 24° / 14° | 82 | 13.1 | 0 | 16.1 | 6.4 |
| Aug | 23° / 13° | 67 | 10.6 | 0 | 14.5 | 6.7 |
| Sep | 18° / 9° | 59 | 9.4 | 0 | 12.4 | 5.6 |
| Oct | 11° / 4° | 48 | 9.8 | 0.6 | 10.3 | 2.9 |
| Nov | 5° / 1° | 39 | 9.3 | 3.3 | 8.5 | 0.3 |
| Dec | 1° / -3° | 42 | 10 | 5.8 | 7.5 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 23% of the time across summer.
Chance of precipitation in Summer
Hajnówka gets around 220 mm of rain over 36 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 11 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 Hajnówka?
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 Hajnówka for sightseeing.
What to pack for Hajnówka in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Hajnówka sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 36 days see rain.
UV index in Hajnówka 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 Hajnówka peaks around June 22 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 1 | 3 | 4 | 5 | 6 | 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 | 6 | High |
| Jul | 6 | High |
| Aug | 6 | High |
| Sep | 4 | Moderate |
| Oct | 2 | Low |
| Nov | 1 | Low |
| Dec | 1 | Low |
Air quality in Hajnówka in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Hajnówka is worst in July — around 28 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (December, 14 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Hajnówka's WHO annual average of 21.8 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 16 | 20 | 27 | 27 | 25 | 27 | 28 | 25 | 21 | 17 | 16 | 14 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 16 | Moderate |
| Feb | 20 | Moderate |
| Mar | 27 | Moderate |
| Apr | 27 | Moderate |
| May | 25 | Moderate |
| Jun | 27 | Moderate |
| Jul | 28 | Moderate |
| Aug | 25 | Moderate |
| Sep | 21 | Moderate |
| Oct | 17 | Moderate |
| Nov | 16 | Moderate |
| Dec | 14 | Moderate |
Where is Hajnówka?
Hajnówka sits at 52.7°N, 23.6°E, 162 m above sea level, in Poland. The nearest listed city is Bielsk Podlaski, 27 km away.
Topography around Hajnówka
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Hajnówka.
Within 3 km, the terrain around Hajnówka has only modest variations in elevation — a maximum elevation change of 43 m around an average of 169 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 81 m; within 80 km, only modest variations in elevation — a maximum elevation change of 163 m.
The land around Hajnówka is covered by trees (36%), cropland (26%) and grassland (22%) within 3 km, trees (58%) and cropland (29%) within 16 km, and trees (42%) and cropland (38%) 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 Hajnówka (52.7433°, 23.5812°, elevation 162 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.