Weather statistics, phenology and records
Monthly averages, climate normals, phenology, growing degree days and weather records for Tatranská Lomnica - Vysoké Tatry - Slovensko.
Highest temperature
26.0 C
20 Aug
Lowest temperature
1.8 C
24 Sep
Total precipitation
83.6 mm
26 Rain days
Strongest wind gust
96.5 km/h
21 Sep
Monthly averages
| Month | Avg temp | Max temp | Min temp | Precipitation | Rain days |
|---|---|---|---|---|---|
| Jan | -- | -- | -- | -- | -- |
| Feb | -- | -- | -- | -- | -- |
| Mar | -- | -- | -- | -- | -- |
| Apr | -- | -- | -- | -- | -- |
| May | -- | -- | -- | -- | -- |
| Jun | -- | -- | -- | -- | -- |
| Jul | -- | -- | -- | -- | -- |
| Aug | 15.8 C | 26.0 C | 7.7 C | 25.0 mm | 8 |
| Sep | 11.9 C | 25.1 C | 1.8 C | 58.6 mm | 18 |
| Oct | 11.4 C | 18.7 C | 5.9 C | 0.0 mm | 0 |
| Nov | -- | -- | -- | -- | -- |
| Dec | -- | -- | -- | -- | -- |
Season Tracker 2026
🌸 Spring days
39
Days with T_max ≥ 15°C
☀️ Summer days
3
Days with T_max ≥ 25°C
🔥 Tropical days
0
Days with T_max ≥ 30°C
❄️ Frost days
0
Days with T_min < 0°C
🧊 Ice days
0
Days with T_max < 0°C
🌧️ Precipitation days
26
Days with rain ≥ 0.1 mm
Seasonal milestones
| Milestone | 2026 | Difference |
|---|---|---|
| 🌸 First spring day | 17 Aug | — |
| ☀️ First summer day | 20 Aug | — |
| 🌡️ First tropical day | — | — |
| ❄️ Last spring frost | — | — |
| 🍂 First autumn frost | — | — |
| 🧊 First ice day | — | — |
Growing Degree Days (base 10 °C) — Total GDD: 176
Peak GDD period
Shows daily GDD bars and a 14-day rolling total so warm stretches stand out.
Best 14-day period
27 Aug
– 9 Sep
84.5 GDD
Average per day: 6.0 GDD
What are Growing Degree Days?
Growing Degree Days (GDD) measure accumulated heat above a base temperature — not calendar days.
GDD = max(0, (Tmax + Tmin) / 2 − 10)
Each day contributes a value equal to how many degrees the average temperature exceeds 10 °C. A day with a high of 26 °C and a low of 12 °C contributes (26 + 12) / 2 − 10 = 9 GDD.
The total GDD for a year is the sum of all daily values. A warm summer can easily produce 1 000 – 1 500 GDD, which is why the total is much larger than 365.
Base temperature: 10 °C (growing threshold for most plants in temperate climates).
All-time records
Highest temperature
26.0 C
20 Aug 2026
#2
25.6 C
31 Aug 2026
#3
25.1 C
09 Sep 2026
#4
23.4 C
08 Sep 2026
#5
23.1 C
30 Aug 2026
Lowest temperature
1.8 C
24 Sep 2026
#2
2.5 C
23 Sep 2026
#3
4.1 C
13 Sep 2026
#4
4.1 C
25 Sep 2026
#5
5.2 C
22 Sep 2026
Warmest day (avg)
21.2 C
20 Aug 2026
#2
21.2 C
09 Sep 2026
#3
19.2 C
31 Aug 2026
#4
17.8 C
21 Aug 2026
#5
17.3 C
08 Sep 2026
Coldest day (avg)
6.0 C
24 Sep 2026
#2
7.5 C
22 Sep 2026
#3
7.6 C
25 Sep 2026
#4
7.7 C
23 Sep 2026
#5
7.9 C
28 Sep 2026
Largest daily range
12.7 C
16 Sep 2026
#2
12.6 C
02 Oct 2026
#3
12.5 C
07 Sep 2026
#4
12.4 C
08 Sep 2026
#5
12.1 C
31 Aug 2026
Most precipitation (day)
21.0 mm
11 Sep 2026
#2
10.6 mm
20 Aug 2026
#3
8.8 mm
21 Sep 2026
#4
8.0 mm
22 Sep 2026
#5
6.1 mm
21 Aug 2026
Highest rain rate
4.4 mm
20 Aug 2026
#2
4.4 mm
11 Sep 2026
#3
3.6 mm
21 Aug 2026
#4
2.4 mm
10 Sep 2026
#5
2.0 mm
17 Sep 2026
Strongest wind gust
96.5 km/h
21 Sep 2026
#2
79.2 km/h
05 Sep 2026
#3
78.5 km/h
04 Sep 2026
#4
76.3 km/h
22 Aug 2026
#5
68.8 km/h
20 Aug 2026
Highest average wind
16.7 km/h
20 Aug 2026
#2
16.0 km/h
09 Sep 2026
#3
12.0 km/h
26 Aug 2026
#4
12.0 km/h
22 Sep 2026
#5
11.7 km/h
23 Sep 2026
Highest pressure
1034 hPa
02 Oct 2026
#2
1034 hPa
03 Oct 2026
#3
1032 hPa
01 Oct 2026
#4
1031 hPa
04 Oct 2026
#5
1031 hPa
29 Sep 2026
Lowest pressure
1005 hPa
22 Aug 2026
#2
1007 hPa
18 Aug 2026
#3
1007 hPa
21 Aug 2026
#4
1007 hPa
17 Aug 2026
#5
1009 hPa
09 Sep 2026
Highest humidity
100%
11 Sep 2026
#2
100%
12 Sep 2026
#3
100%
17 Sep 2026
#4
100%
24 Sep 2026
#5
100%
25 Sep 2026
Lowest humidity
22%
02 Oct 2026
#2
26%
04 Oct 2026
#3
30%
01 Oct 2026
#4
33%
03 Oct 2026
#5
37%
29 Sep 2026
Highest UV index
6
20 Aug 2026
#2
5.9
19 Aug 2026
#3
5.9
25 Aug 2026
#4
5.9
28 Aug 2026
#5
5.8
24 Aug 2026
Highest solar radiation
779 W/m²
18 Aug 2026
#2
772 W/m²
22 Aug 2026
#3
767 W/m²
28 Aug 2026
#4
755 W/m²
27 Aug 2026
#5
748 W/m²
24 Aug 2026
Most sunshine hours
0 h
17 Aug 2026
#2
0 h
18 Aug 2026
#3
0 h
19 Aug 2026
#4
0 h
20 Aug 2026
#5
0 h
21 Aug 2026
Climate normals vs 2026
Departure from normal
| Month | Normal avg | Actual avg | Departure |
|---|---|---|---|
| Jan | -- | -- | -- |
| Feb | -- | -- | -- |
| Mar | -- | -- | -- |
| Apr | -- | -- | -- |
| May | -- | -- | -- |
| Jun | -- | -- | -- |
| Jul | -- | -- | -- |
| Aug | 15.8 C | 15.8 C | 0.0 C |
| Sep | 12.2 C | 11.9 C | -0.3 C |
| Oct | -- | -- | -- |
| Nov | -- | -- | -- |
| Dec | -- | -- | -- |
Compare periods
vs
vs
Highest temp
Lowest temp
Precipitation
Max wind
No data
Highest temp
Lowest temp
Precipitation
Max wind
No data