Södertälje weather in February
In February, Södertälje sees average daytime highs of 1°C and overnight lows near -5°C, with 30 mm of precipitation across 7.5 wet days and about 8.8 hours of daylight. It is the 11th-warmest and 12th-wettest month of the year here.
Day-to-day highs hold fairly steady near 1°C through the month. The sky is clear or mostly clear about 17% of the time in February, and the air most often feels dry.
Daylight stretches from about 7 h 36 min at the start of February to 9 h 54 min by month's end. Set against the rest of the year, February is Södertälje's 9th-clearest and 3rd-windiest month. For the whole year in context, see Södertälje's year-round climate.
- Daytime high
- 1°
- 11th warmest
- Overnight low
- -5°
- 1st coldest
- Precipitation
- 30 mm
- 7.5 wet days
- Daylight
- 8 h 48 min
- 7:41 AM – 4:28 PM
- Cloud cover
- 74%
- 9th clearest
- Wind
- 14 km/h
- 3rd windiest
- Solar energy
- 1.02 kWh/m²
- Travel score
- 0.0
- out of 10
Södertälje is urban area in Södertälje Municipality, Sweden.
- Air quality
- Good
- PM10 19.8 µg/m³ · 2019
- Founded
- 1300
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in February
Day-to-day highs hold fairly steady near 1°C through the month.
A typical February day in Södertälje reaches about 1°C in the afternoon and slips back to -5°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between -5°C and 6°C. Set against its neighbours, February runs on par with January and about 4°C cooler than March.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 |
| Avg low (°C) | -5 | -5 | -5 | -5 | -5 | -5 | -5 | -5 | -5 | -5 | -5 | -5 | -5 | -5 | -5 | -5 | -5 | -5 | -5 | -4 | -4 | -4 | -4 | -4 | -4 | -4 | -4 | -4 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 0 | -5 |
| 2 | 0 | -5 |
| 3 | 0 | -5 |
| 4 | 0 | -5 |
| 5 | 0 | -5 |
| 6 | 0 | -5 |
| 7 | 0 | -5 |
| 8 | 0 | -5 |
| 9 | 0 | -5 |
| 10 | 0 | -5 |
| 11 | 0 | -5 |
| 12 | 0 | -5 |
| 13 | 1 | -5 |
| 14 | 1 | -5 |
| 15 | 1 | -5 |
| 16 | 1 | -5 |
| 17 | 1 | -5 |
| 18 | 1 | -5 |
| 19 | 1 | -5 |
| 20 | 1 | -4 |
| 21 | 1 | -4 |
| 22 | 1 | -4 |
| 23 | 1 | -4 |
| 24 | 1 | -4 |
| 25 | 1 | -4 |
| 26 | 1 | -4 |
| 27 | 2 | -4 |
| 28 | 2 | -4 |
How February really feels in Södertälje
Once humidity and wind are folded in, February averages 0 days that feel above 32°C and 28 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in February is cold — wind chill drags the overnight "feels like" below the raw low.
Södertälje weather by month
How February compares with the rest of the year at a glance. February is the 11th-warmest and 12th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 0° / -4° | 36 | 8.1 | 5.4 | 6.6 | 0.0 |
| Feb | 1° / -5° | 30 | 7.5 | 6.1 | 8.8 | 0.0 |
| Mar | 4° / -3° | 30 | 7.7 | 4.6 | 11.3 | 0.2 |
| Apr | 10° / 1° | 33 | 8.1 | 1.5 | 14.1 | 2.2 |
| May | 15° / 5° | 45 | 9.6 | 0.2 | 16.6 | 4.6 |
| Jun | 19° / 10° | 66 | 11.4 | 0 | 18.1 | 5.8 |
| Jul | 22° / 13° | 71 | 11.5 | 0 | 17.5 | 6.3 |
| Aug | 21° / 12° | 70 | 12.1 | 0 | 15.2 | 6.0 |
| Sep | 16° / 8° | 51 | 8.7 | 0 | 12.6 | 4.9 |
| Oct | 10° / 4° | 49 | 9.5 | 0.2 | 9.8 | 2.2 |
| Nov | 5° / 1° | 46 | 9.9 | 2.8 | 7.3 | 0.2 |
| Dec | 2° / -3° | 44 | 10.4 | 5.6 | 5.9 | 0.0 |
Cloud cover in February
The sky is clear or mostly clear about 17% of the time in February.
Beyond those clear spells, partly cloudy skies cover about 11% of February, with mostly cloudy or overcast conditions the remaining 72%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 27 | 27 | 26 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Cloudier (%) | 73 | 73 | 74 | 73 | 73 | 73 | 73 | 72 | 72 | 72 | 72 | 73 | 73 | 72 | 72 | 71 | 71 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 27 | 73 |
| 2 | 27 | 73 |
| 3 | 26 | 74 |
| 4 | 27 | 73 |
| 5 | 27 | 73 |
| 6 | 27 | 73 |
| 7 | 27 | 73 |
| 8 | 28 | 72 |
| 9 | 28 | 72 |
| 10 | 28 | 72 |
| 11 | 28 | 72 |
| 12 | 27 | 73 |
| 13 | 27 | 73 |
| 14 | 28 | 72 |
| 15 | 28 | 72 |
| 16 | 29 | 71 |
| 17 | 29 | 71 |
| 18 | 28 | 72 |
| 19 | 28 | 72 |
| 20 | 28 | 72 |
| 21 | 28 | 72 |
| 22 | 28 | 72 |
| 23 | 28 | 72 |
| 24 | 28 | 72 |
| 25 | 28 | 72 |
| 26 | 28 | 72 |
| 27 | 28 | 72 |
| 28 | 28 | 72 |
Chance of precipitation in February
Södertälje gets around 30 mm of rain and snow over 7.5 wet days in February, the driest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 26% and peaks near 28% on the wettest days, and about 6 days bring snow.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 27 |
| Snow chance (%) | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 27 | 22 |
| 2 | 28 | 22 |
| 3 | 28 | 22 |
| 4 | 28 | 22 |
| 5 | 28 | 21 |
| 6 | 27 | 21 |
| 7 | 27 | 21 |
| 8 | 27 | 21 |
| 9 | 27 | 21 |
| 10 | 26 | 21 |
| 11 | 26 | 20 |
| 12 | 26 | 20 |
| 13 | 25 | 20 |
| 14 | 25 | 21 |
| 15 | 25 | 21 |
| 16 | 25 | 21 |
| 17 | 25 | 21 |
| 18 | 25 | 21 |
| 19 | 25 | 21 |
| 20 | 25 | 22 |
| 21 | 25 | 22 |
| 22 | 25 | 22 |
| 23 | 26 | 22 |
| 24 | 26 | 22 |
| 25 | 26 | 22 |
| 26 | 26 | 22 |
| 27 | 26 | 21 |
| 28 | 27 | 21 |
Humidity in February
Most of February feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, February lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Dry (%) | |
|---|---|
| 1 | 100 |
| 2 | 100 |
| 3 | 100 |
| 4 | 100 |
| 5 | 100 |
| 6 | 100 |
| 7 | 100 |
| 8 | 100 |
| 9 | 100 |
| 10 | 100 |
| 11 | 100 |
| 12 | 100 |
| 13 | 100 |
| 14 | 100 |
| 15 | 100 |
| 16 | 100 |
| 17 | 100 |
| 18 | 100 |
| 19 | 100 |
| 20 | 100 |
| 21 | 100 |
| 22 | 100 |
| 23 | 100 |
| 24 | 100 |
| 25 | 100 |
| 26 | 100 |
| 27 | 100 |
| 28 | 100 |
Wind in February
Winds average 14 km/h in February.
Across February, daily wind ranges from about 14 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 14 | light breeze |
| 2 | 14 | light breeze |
| 3 | 14 | light breeze |
| 4 | 14 | light breeze |
| 5 | 14 | light breeze |
| 6 | 14 | light breeze |
| 7 | 14 | light breeze |
| 8 | 14 | light breeze |
| 9 | 14 | light breeze |
| 10 | 14 | light breeze |
| 11 | 14 | light breeze |
| 12 | 14 | light breeze |
| 13 | 14 | light breeze |
| 14 | 14 | light breeze |
| 15 | 14 | light breeze |
| 16 | 14 | light breeze |
| 17 | 14 | light breeze |
| 18 | 14 | light breeze |
| 19 | 14 | light breeze |
| 20 | 14 | light breeze |
| 21 | 14 | light breeze |
| 22 | 14 | light breeze |
| 23 | 14 | light breeze |
| 24 | 14 | light breeze |
| 25 | 14 | light breeze |
| 26 | 14 | light breeze |
| 27 | 14 | light breeze |
| 28 | 14 | light breeze |
Sunrise & sunset in February
Daylight runs from about 7 h 36 min at the start of February to 9 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 138 minutes over February. Sunrise moves from 8:14 AM to 7:05 AM, and sunset from 3:52 PM to 5:00 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 7.6 | 7.7 | 7.8 | 7.9 | 8.0 | 8.0 | 8.1 | 8.2 | 8.3 | 8.4 | 8.4 | 8.5 | 8.6 | 8.7 | 8.8 | 8.9 | 9.0 | 9.0 | 9.1 | 9.2 | 9.3 | 9.4 | 9.5 | 9.6 | 9.6 | 9.7 | 9.8 | 9.9 |
| Sunrise (AM) | 8:14 | 8:12 | 8:09 | 8:07 | 8:05 | 8:03 | 8:00 | 7:58 | 7:56 | 7:53 | 7:51 | 7:48 | 7:46 | 7:43 | 7:41 | 7:38 | 7:35 | 7:33 | 7:30 | 7:27 | 7:25 | 7:22 | 7:19 | 7:17 | 7:14 | 7:11 | 7:08 | 7:05 |
| Sunset (PM) | 3:52 | 3:55 | 3:57 | 4:00 | 4:02 | 4:05 | 4:07 | 4:10 | 4:12 | 4:15 | 4:17 | 4:20 | 4:23 | 4:25 | 4:28 | 4:30 | 4:33 | 4:35 | 4:38 | 4:40 | 4:43 | 4:45 | 4:48 | 4:50 | 4:53 | 4:55 | 4:58 | 5:00 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 7.6 | 8:14 | 3:52 |
| 2 | 7.7 | 8:12 | 3:55 |
| 3 | 7.8 | 8:09 | 3:57 |
| 4 | 7.9 | 8:07 | 4:00 |
| 5 | 8.0 | 8:05 | 4:02 |
| 6 | 8.0 | 8:03 | 4:05 |
| 7 | 8.1 | 8:00 | 4:07 |
| 8 | 8.2 | 7:58 | 4:10 |
| 9 | 8.3 | 7:56 | 4:12 |
| 10 | 8.4 | 7:53 | 4:15 |
| 11 | 8.4 | 7:51 | 4:17 |
| 12 | 8.5 | 7:48 | 4:20 |
| 13 | 8.6 | 7:46 | 4:23 |
| 14 | 8.7 | 7:43 | 4:25 |
| 15 | 8.8 | 7:41 | 4:28 |
| 16 | 8.9 | 7:38 | 4:30 |
| 17 | 9.0 | 7:35 | 4:33 |
| 18 | 9.0 | 7:33 | 4:35 |
| 19 | 9.1 | 7:30 | 4:38 |
| 20 | 9.2 | 7:27 | 4:40 |
| 21 | 9.3 | 7:25 | 4:43 |
| 22 | 9.4 | 7:22 | 4:45 |
| 23 | 9.5 | 7:19 | 4:48 |
| 24 | 9.6 | 7:17 | 4:50 |
| 25 | 9.6 | 7:14 | 4:53 |
| 26 | 9.7 | 7:11 | 4:55 |
| 27 | 9.8 | 7:08 | 4:58 |
| 28 | 9.9 | 7:05 | 5:00 |
Solar energy in February
Average shortwave solar energy reaching the ground each day in February, about 1.02 kWh/m².
For context, solar energy here swings from a low near 0.21 kWh/m² to a high of 5.73 kWh/m² in June across the year — February's 1.02 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 0.6 | 0.7 | 0.7 | 0.7 | 0.7 | 0.8 | 0.8 | 0.8 | 0.8 | 0.9 | 0.9 | 0.9 | 1.0 | 1.0 | 1.0 | 1.1 | 1.1 | 1.1 | 1.2 | 1.2 | 1.2 | 1.3 | 1.3 | 1.3 | 1.4 | 1.4 | 1.5 | 1.5 |
| Level | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 0.6 | Dim |
| 2 | 0.7 | Dim |
| 3 | 0.7 | Dim |
| 4 | 0.7 | Dim |
| 5 | 0.7 | Dim |
| 6 | 0.8 | Dim |
| 7 | 0.8 | Dim |
| 8 | 0.8 | Dim |
| 9 | 0.8 | Dim |
| 10 | 0.9 | Dim |
| 11 | 0.9 | Dim |
| 12 | 0.9 | Dim |
| 13 | 1.0 | Dim |
| 14 | 1.0 | Dim |
| 15 | 1.0 | Dim |
| 16 | 1.1 | Dim |
| 17 | 1.1 | Dim |
| 18 | 1.1 | Dim |
| 19 | 1.2 | Dim |
| 20 | 1.2 | Dim |
| 21 | 1.2 | Dim |
| 22 | 1.3 | Dim |
| 23 | 1.3 | Dim |
| 24 | 1.3 | Dim |
| 25 | 1.4 | Dim |
| 26 | 1.4 | Dim |
| 27 | 1.5 | Dim |
| 28 | 1.5 | Dim |
Is February a good time to visit Södertälje?
Our two travel scores rate February for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
February is a weaker month for outdoor sightseeing in Södertälje.
What to pack for Södertälje in February
From February's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In February, Södertälje sees daytime highs around 1°C and nights near -5°C. Pack a warm layer and a heavy coat. About 8 days see rain.
Sea temperature near Södertälje in February
The nearest coast averages about 2°C in February — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 38 km away) is warmest in August at about 17°C and coldest in March near 2°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 3 | 2 | 2 | 3 | 7 | 12 | 16 | 17 | 14 | 10 | 7 | 5 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 3 | Bracing |
| Feb | 2 | Bracing |
| Mar | 2 | Bracing |
| Apr | 3 | Bracing |
| May | 7 | Bracing |
| Jun | 12 | Bracing |
| Jul | 16 | Cool |
| Aug | 17 | Cool |
| Sep | 14 | Bracing |
| Oct | 10 | Bracing |
| Nov | 7 | Bracing |
| Dec | 5 | Bracing |
UV index in Södertälje in February
Clear-sky midday UV in February peaks around 1. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Södertälje peaks around June 17 at about 5 (high) — a little sun protection helps at midday. It bottoms out near December 19 at about 0 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 4 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 0 | 1 | 2 | 3 | 4 | 5 | 5 | 4 | 3 | 1 | 0 | 0 |
| Level | Low | Low | Low | Moderate | Moderate | High | Moderate | Moderate | Moderate | Low | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 0 | Low |
| Feb | 1 | Low |
| Mar | 2 | Low |
| Apr | 3 | Moderate |
| May | 4 | Moderate |
| Jun | 5 | High |
| Jul | 5 | Moderate |
| Aug | 4 | Moderate |
| Sep | 3 | Moderate |
| Oct | 1 | Low |
| Nov | 0 | Low |
| Dec | 0 | Low |
Where is Södertälje?
Södertälje sits at 59.2°N, 17.6°E, 29 m above sea level, in Sweden. The nearest listed city is Tumba, 12 km away.
Topography around Södertälje
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Södertälje.
Within 3 km, the terrain around Södertälje has only modest variations in elevation — a maximum elevation change of 81 m around an average of 41 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 105 m; within 80 km, only modest variations in elevation — a maximum elevation change of 135 m.
The land around Södertälje is covered by trees (52%) and artificial surfaces (34%) within 3 km, trees (57%) and water (20%) within 16 km, and trees (44%) and water (36%) within 80 km.
Sweden travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 87% of US
- price level, 2025
- GDP per capita
- $63,133
- 2025
- Happiness
- 7.3 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 1.1
- per 100k, 2023
- Road deaths
- 3.1
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very high
- EF EPI 609
- 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 Södertälje (59.1955°, 17.6253°, elevation 29 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).