Góry Świętokrzyskie for a weekend

Spent the last weekend away, yet not far away from Warsaw in Góry Świętokrzyskie, a hilly area closest to Warsaw, which does not deserved be named mountains. Ventured there with almost the same circle of friends, all current or former volunteers in Szlachetna Paczka with whom I took a trip to Sardinia three years ago.

The quite short time spent in a group of seven people reminded me I had got used to travelling on my own or in a couple. Or maybe it just highlighted divergencies between my friends and me (where the six of them are quite similar to one another). Travelling with my girlfriends, optionally also with their friends seems a whole lot easier.

With my friends for a long time I have noticed two major moot points. Firstly - sleeping habits. I am the only early bird in this group, while others prefer to sit up late (which I don't mind, but get up early next morning anyway). Secondly - eating. I am the one who eats to live, not the other way round and do not take delight in dining. Besides, I eat a large breakfast and a proper lunch and then take up little until going to sleep. They in turn all adore tasty food and a dinner is their main meal over the day. I like their company, but each time I am surrounded by them for more than a few hours, I repeat to myself I am not marrying them, hence my frustrations are useless.

Now a few snaps from the trip. On Saturday we climbed a short trail to Święty Krzyż church. Had I travelled on my own, I would have reached the peak by 10:00 a.m. With my friends we got there in full heat at 1:00 p.m.

The church has a viewing tower (entrance charge: PLN 10), which lets visitors behold splendid panoramas of nearby hilly landscapes. I am fond of looking at the world from above, hence joyfully forked out a tenner to take delight in it.

On Sunday we scrambled up Łysica, the highest hill around, mere 612 metres above sea level. We marched up just past a rainfall, so the ascent, though short, was a bit of nasty. Predictably, droves of tourists on rocks on top.

Later on we drove to Zagnańsk to pass by apparently the oldest tree in Poland, oak Bartek, whose age is estimated at between 700 and 1,000 years. The very tree needs to be fenced off and solidly propped up to retain its monumental nature 

The area is abundant in several tourist attractions and we could have seen more of them, had it not been an overly lazy weekend ;-)

Warsaw climate statistics

A seemingly cold and wet weather in July this year has prompted some brain-devoid denialist to call into question an only accelerating global warming. In fact the previous month was not cooler nor wetter than 1991-2020 average. Mean temperature in July 2025 reached +19.9C, vs. long-term average of +19.7C and total precipitation reached 54.4 millimetres, vs. long-term average of 82.2 millimetres.

Although there is little chance I convince conspiracy theorists, I resolved to take little autistic delight in playing with numbers and compiling chart showing how the climate in the capital of Poland has evolved since 1951. In my analysis I fully rely on resumed and revamped Meteomodel page, which in turn has brilliantly processed raw data available from the Polish Met Office (IMGW).

First comes a standard temperature by month chart, with three lines representing 30-year averages in three measurement periods. They illustrate climate change dynamics in the perspective of two decades. You can clearly see winters and summers are "most affected" periods, while in spring and autumn average temperature increase at a slower pace.

From this chart on, I begin to illustrate long-term trends with rolling 10-year and 30-year averages. The outcomes clearly indicate mean yearly temperature in Warsaw has risen by more than 1 Celsius degree over the last 40 years and the warming has speeded up over the last decade.

Looking at winter months only (note 0 on the horizontal axis stands for 0C), we see harsh winters are the thing of the past, the last such one was in 2012/13. The recent winters with mean temperatures above 0C do not even meet the formal definition of a winter.

For summer months, the temperature incline trend is even clearer. Today one forgets summers with average temperature below +17C were quite prevalent in 1960s and 1970s. Note the 10Y rolling average has gone up by 3 Celsius degrees over merely four decades.

One of the biggest reasons to worry about the impact of the climate change are heat waves. The number of days defined as hot back in the second half of the twentieth century ran at 5 a year on average. In recent two decades it skyrocketed. Hence summer 2025 with 4 hot days so far is perceived as mild.

But quite often temperatures only nears +30C and this is captured by the chart showing number of days with day-time high above +25C. Here the trend is also clear, however less disturbing.

Heat waves are periods of misery not because of hot afternoons, but due to nights which do not bring relief. A few decades ago heat was more bearable than these days, as dawns with minimum temperature above +20C were an absolute rarity. The stats however, do not capture several nights with temperature dropping for a few minutes barely below +20C. Counting them would require lots of manual work, which at the moment is none of my priorities.

The number of days with frost declines, yet here the tendency is much slower than for warmth-related figures. A few decades ago a frost in May was quite usual. These days ground frosts in May happen, but two metres above ground temperature stays positive. Half of 10 recent Octobers were frost-free, while there has been no frost-free April so far (the earliest last frost reported on 2 April 2016.

The number of days with no thaw in turn decreased more dramatically, especially in recent years, heralding a demise of proper winters. Winters in Warsaw may soon have a through-zero pattern, with snow or sleet falling and melting and slippery surfaces being a plague.

A few decades ago Warsaw saw around 20 days with double-digit frost in mornings. Looking at the last decade such number dropped close to 5, with some winters with all-season lows above -10C. And within last 13 years temperature dropped below -20C only once, on 18 January 2021. Before 1990 such harsh frosts were observed every second or third year.

If winter, then snow. Here numbers bring even more ample evidence of winters retreating. The 10Y average number of days with snow cover peaked in 1971 close to 80, while in 2025 it fell to little more than 30. Here of note are mild winters from late 1980s and early 1990s which for a while gave way to proper winters, the last proper one ending in April 2013. It was all downhill since then.

Hope you've enjoyed the read to the same extent to which I've drawn pleasure from compiling this bunch of charts and accompanying comments.

Not a posting next week (off to Góry Świętokrzyskie).

The place where I belong, episode 2025, vol. 1

Weather this July has been merciful so far. Except for minor incidences of heat and abundant rainfalls at times, summer over the most of the month was conducive to staying outdoors. Night-time lows just above +15C, afternoon highs close to +25C, brisk mornings and evenings are the summer weather I adore. In such circumstances outdoor beckons. Such was the case on Thursday, when I decided to get over a brain-wrenching working day by cycling around the neighbourhood.

I was lucky to pass through several green lights while crossing intersections and was first forced to halt where al. KEN and ul. Indiry Gandhi meet. The building of Multikino has been demolished a few months ago, yet I’m still missing it. The only cinema in the district, a remarkable landmark of Ursynów is gone, along with Adana Kebab eatery, which was a meet-up venue for local Szlachetna Paczka volunteers for years.

Few people know east of ul. Nowoursy- nowska and south of SGGW campus one can find an experimental estate of detached and semi-detached houses built shortly after WW2 for the university’s staff. Shrouded in greenery, look most splendidly when spring blossoms. Sadly, outside most houses inhabitants were outdoors, working in gardens, or just sitting and taking delight in a lovely evening, hence I did not snap them. I will make up one day.

Having cycled down ul. Orszady, I pass the most luxurious residential estate in Warsaw, on the edge of Wilanów. Prices of last available houses are not disclosed (until 10 September 2025, thereafter a full disclosure of property prices will be proscribed by law), but the Internet tells they range from PLN 3.2 million to PLN 6.5 million. I can afford to park my bike outside the gate.

Some time later, having ridden up ul. Pałacowa, I reach the back gate of the Natolin palace park, an area closed off for ordinary visitors since decades. If one day I book a trip to the palace and surrounding gardens and photographing will not be prohibited, I will come up with a proper coverage.

Then came my favourite section, a path along the Skarpa Kabacka nature reservoir. Instead of taking multiple photos and picking the best snaps, I wanted to take one, yet superb. Consequently, I have not taken a single photo by the time I reached the escarpment (a lousy snap to the right). This means another such trip on the same route will be due in August and its documentation published here.

Make the most of the summer before it’s gone or before the unbearable heat comes over, which fortunately is unlikely over the next two weeks.