Ostfildern weather in April
In April, Ostfildern sees average daytime highs of 15°C and overnight lows near 5°C, with 55 mm of precipitation across 11.4 wet days and about 13.4 hours of daylight. It is the 6th-warmest and 11th-wettest month of the year here.
Highs climb over the month, from about 12°C in the first days to 17°C by the end. The sky is clear or mostly clear about 24% of the time in April, and the air most often feels dry.
Daylight stretches from about 12 h 30 min at the start of April to 14 h 12 min by month's end. Set against the rest of the year, April is Ostfildern's 5th-clearest and 7th-windiest month. For the whole year in context, see Ostfildern's year-round climate.
- Daytime high
- 15°
- 6th warmest
- Overnight low
- 5°
- 6th coldest
- Precipitation
- 55 mm
- 11.4 wet days
- Daylight
- 13 h 24 min
- 5:40 AM – 7:06 PM
- Cloud cover
- 64%
- 5th clearest
- Wind
- 9 km/h
- 7th windiest
- Solar energy
- 4.59 kWh/m²
- Travel score
- 4.1
- out of 10
Temperature in April
Highs climb over the month, from about 12°C in the first days to 17°C by the end.
A typical April day in Ostfildern reaches about 15°C in the afternoon and slips back to 5°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 22°C. Set against its neighbours, April runs about 5°C warmer than March and about 4°C cooler than May.
| 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 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 |
| Avg low (°C) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 12 | 3 |
| 2 | 12 | 3 |
| 3 | 13 | 3 |
| 4 | 13 | 3 |
| 5 | 13 | 3 |
| 6 | 13 | 3 |
| 7 | 13 | 3 |
| 8 | 13 | 3 |
| 9 | 13 | 4 |
| 10 | 13 | 4 |
| 11 | 14 | 4 |
| 12 | 14 | 4 |
| 13 | 14 | 4 |
| 14 | 14 | 4 |
| 15 | 14 | 4 |
| 16 | 14 | 4 |
| 17 | 15 | 5 |
| 18 | 15 | 5 |
| 19 | 15 | 5 |
| 20 | 15 | 5 |
| 21 | 16 | 5 |
| 22 | 16 | 5 |
| 23 | 16 | 6 |
| 24 | 16 | 6 |
| 25 | 16 | 6 |
| 26 | 16 | 6 |
| 27 | 17 | 6 |
| 28 | 17 | 7 |
| 29 | 17 | 7 |
| 30 | 17 | 7 |
How April really feels in Ostfildern
Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Ostfildern weather by month
How April compares with the rest of the year at a glance. April is the 6th-warmest and 11th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 4° / -1° | 65 | 12.2 | 4.2 | 8.5 | 0.0 |
| Feb | 5° / -1° | 54 | 10.1 | 4.2 | 9.8 | 0.2 |
| Mar | 10° / 2° | 67 | 12.5 | 2.3 | 11.6 | 2.1 |
| Apr | 15° / 5° | 55 | 11.4 | 0.4 | 13.4 | 4.1 |
| May | 19° / 9° | 84 | 13.6 | 0 | 15 | 5.4 |
| Jun | 22° / 12° | 75 | 13.2 | 0 | 15.9 | 6.1 |
| Jul | 24° / 14° | 79 | 12.5 | 0 | 15.5 | 6.6 |
| Aug | 24° / 14° | 68 | 11.6 | 0 | 14.2 | 6.7 |
| Sep | 19° / 10° | 62 | 10.8 | 0 | 12.4 | 5.9 |
| Oct | 14° / 6° | 66 | 11.3 | 0.2 | 10.5 | 3.9 |
| Nov | 8° / 2° | 66 | 11.2 | 1.6 | 9 | 1.2 |
| Dec | 5° / -0° | 73 | 13.2 | 4.3 | 8.1 | 0.0 |
Cloud cover in April
The sky is clear or mostly clear about 24% of the time in April.
Beyond those clear spells, partly cloudy skies cover about 14% of April, with mostly cloudy or overcast conditions the remaining 62%.
| 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 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 39 | 40 | 40 | 40 | 39 | 39 | 39 | 38 | 38 | 38 | 37 | 38 | 38 | 38 | 38 | 38 | 39 | 39 | 39 | 39 | 39 | 38 | 38 | 38 | 37 | 37 | 36 | 36 | 35 | 35 |
| Cloudier (%) | 61 | 60 | 60 | 60 | 61 | 61 | 61 | 62 | 62 | 62 | 63 | 62 | 62 | 62 | 62 | 62 | 61 | 61 | 61 | 61 | 61 | 62 | 62 | 62 | 63 | 63 | 64 | 64 | 65 | 65 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 39 | 61 |
| 2 | 40 | 60 |
| 3 | 40 | 60 |
| 4 | 40 | 60 |
| 5 | 39 | 61 |
| 6 | 39 | 61 |
| 7 | 39 | 61 |
| 8 | 38 | 62 |
| 9 | 38 | 62 |
| 10 | 38 | 62 |
| 11 | 37 | 63 |
| 12 | 38 | 62 |
| 13 | 38 | 62 |
| 14 | 38 | 62 |
| 15 | 38 | 62 |
| 16 | 38 | 62 |
| 17 | 39 | 61 |
| 18 | 39 | 61 |
| 19 | 39 | 61 |
| 20 | 39 | 61 |
| 21 | 39 | 61 |
| 22 | 38 | 62 |
| 23 | 38 | 62 |
| 24 | 38 | 62 |
| 25 | 37 | 63 |
| 26 | 37 | 63 |
| 27 | 36 | 64 |
| 28 | 36 | 64 |
| 29 | 35 | 65 |
| 30 | 35 | 65 |
Chance of precipitation in April
Ostfildern gets around 55 mm of rain and snow over 11.4 wet days in April. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 38% and peaks near 44% on the wettest days, and about 0 day brings 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 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 39 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 37 | 37 | 36 | 36 | 35 | 35 | 35 | 35 | 35 | 36 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 43 | 44 |
| Snow chance (%) | 5 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 39 | 5 |
| 2 | 38 | 4 |
| 3 | 38 | 4 |
| 4 | 38 | 3 |
| 5 | 38 | 3 |
| 6 | 38 | 3 |
| 7 | 38 | 2 |
| 8 | 38 | 2 |
| 9 | 38 | 2 |
| 10 | 38 | 2 |
| 11 | 37 | 2 |
| 12 | 37 | 2 |
| 13 | 36 | 2 |
| 14 | 36 | 2 |
| 15 | 35 | 2 |
| 16 | 35 | 2 |
| 17 | 35 | 2 |
| 18 | 35 | 1 |
| 19 | 35 | 1 |
| 20 | 36 | 1 |
| 21 | 36 | 1 |
| 22 | 37 | 1 |
| 23 | 38 | 1 |
| 24 | 39 | 1 |
| 25 | 40 | 1 |
| 26 | 41 | 1 |
| 27 | 42 | 1 |
| 28 | 43 | 1 |
| 29 | 43 | 0 |
| 30 | 44 | 0 |
Humidity in April
Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, April 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 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 100 | 99 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| 1 | 100 | 0 |
| 2 | 100 | 0 |
| 3 | 100 | 0 |
| 4 | 100 | 0 |
| 5 | 100 | 0 |
| 6 | 100 | 0 |
| 7 | 100 | 0 |
| 8 | 100 | 0 |
| 9 | 100 | 0 |
| 10 | 100 | 0 |
| 11 | 100 | 0 |
| 12 | 100 | 0 |
| 13 | 100 | 0 |
| 14 | 100 | 0 |
| 15 | 100 | 0 |
| 16 | 100 | 0 |
| 17 | 100 | 0 |
| 18 | 100 | 0 |
| 19 | 100 | 0 |
| 20 | 100 | 0 |
| 21 | 100 | 0 |
| 22 | 100 | 0 |
| 23 | 100 | 0 |
| 24 | 100 | 0 |
| 25 | 100 | 0 |
| 26 | 100 | 0 |
| 27 | 100 | 0 |
| 28 | 100 | 0 |
| 29 | 100 | 0 |
| 30 | 99 | 1 |
Wind in April
Winds average 9 km/h in April.
Across April, daily wind ranges from about 9 km/h on the calmest days to 10 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 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 10 | calm |
| 2 | 10 | calm |
| 3 | 10 | calm |
| 4 | 10 | calm |
| 5 | 10 | calm |
| 6 | 10 | calm |
| 7 | 10 | calm |
| 8 | 10 | calm |
| 9 | 10 | calm |
| 10 | 10 | calm |
| 11 | 10 | calm |
| 12 | 9 | calm |
| 13 | 9 | calm |
| 14 | 9 | calm |
| 15 | 9 | calm |
| 16 | 9 | calm |
| 17 | 9 | calm |
| 18 | 9 | calm |
| 19 | 9 | calm |
| 20 | 9 | calm |
| 21 | 9 | calm |
| 22 | 9 | calm |
| 23 | 9 | calm |
| 24 | 9 | calm |
| 25 | 9 | calm |
| 26 | 9 | calm |
| 27 | 9 | calm |
| 28 | 9 | calm |
| 29 | 9 | calm |
| 30 | 9 | calm |
Sunrise & sunset in April
Daylight runs from about 12 h 30 min at the start of April to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 102 minutes over April. Sunrise moves from 6:12 AM to 5:13 AM, and sunset from 6:44 PM to 7:27 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 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.5 | 12.6 | 12.7 | 12.7 | 12.8 | 12.8 | 12.9 | 13.0 | 13.0 | 13.1 | 13.1 | 13.2 | 13.3 | 13.3 | 13.4 | 13.4 | 13.5 | 13.6 | 13.6 | 13.7 | 13.7 | 13.8 | 13.8 | 13.9 | 14.0 | 14.0 | 14.1 | 14.1 | 14.2 | 14.2 |
| Sunrise (AM) | 6:12 | 6:09 | 6:07 | 6:05 | 6:03 | 6:01 | 5:59 | 5:57 | 5:55 | 5:52 | 5:50 | 5:48 | 5:46 | 5:44 | 5:42 | 5:40 | 5:38 | 5:36 | 5:34 | 5:32 | 5:30 | 5:28 | 5:26 | 5:24 | 5:23 | 5:21 | 5:19 | 5:17 | 5:15 | 5:13 |
| Sunset (PM) | 6:44 | 6:45 | 6:47 | 6:48 | 6:50 | 6:51 | 6:53 | 6:54 | 6:56 | 6:57 | 6:59 | 7:00 | 7:02 | 7:03 | 7:05 | 7:06 | 7:08 | 7:09 | 7:11 | 7:12 | 7:14 | 7:15 | 7:17 | 7:18 | 7:20 | 7:21 | 7:23 | 7:24 | 7:26 | 7:27 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.5 | 6:12 | 6:44 |
| 2 | 12.6 | 6:09 | 6:45 |
| 3 | 12.7 | 6:07 | 6:47 |
| 4 | 12.7 | 6:05 | 6:48 |
| 5 | 12.8 | 6:03 | 6:50 |
| 6 | 12.8 | 6:01 | 6:51 |
| 7 | 12.9 | 5:59 | 6:53 |
| 8 | 13.0 | 5:57 | 6:54 |
| 9 | 13.0 | 5:55 | 6:56 |
| 10 | 13.1 | 5:52 | 6:57 |
| 11 | 13.1 | 5:50 | 6:59 |
| 12 | 13.2 | 5:48 | 7:00 |
| 13 | 13.3 | 5:46 | 7:02 |
| 14 | 13.3 | 5:44 | 7:03 |
| 15 | 13.4 | 5:42 | 7:05 |
| 16 | 13.4 | 5:40 | 7:06 |
| 17 | 13.5 | 5:38 | 7:08 |
| 18 | 13.6 | 5:36 | 7:09 |
| 19 | 13.6 | 5:34 | 7:11 |
| 20 | 13.7 | 5:32 | 7:12 |
| 21 | 13.7 | 5:30 | 7:14 |
| 22 | 13.8 | 5:28 | 7:15 |
| 23 | 13.8 | 5:26 | 7:17 |
| 24 | 13.9 | 5:24 | 7:18 |
| 25 | 14.0 | 5:23 | 7:20 |
| 26 | 14.0 | 5:21 | 7:21 |
| 27 | 14.1 | 5:19 | 7:23 |
| 28 | 14.1 | 5:17 | 7:24 |
| 29 | 14.2 | 5:15 | 7:26 |
| 30 | 14.2 | 5:13 | 7:27 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 4.59 kWh/m².
For context, solar energy here swings from a low near 0.84 kWh/m² to a high of 5.53 kWh/m² in June across the year — April's 4.59 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 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.9 | 4.0 | 4.0 | 4.1 | 4.1 | 4.2 | 4.2 | 4.3 | 4.3 | 4.4 | 4.4 | 4.5 | 4.5 | 4.5 | 4.6 | 4.6 | 4.7 | 4.7 | 4.7 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 |
| Level | Moderate | Moderate | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.9 | Moderate |
| 2 | 4.0 | Moderate |
| 3 | 4.0 | Bright |
| 4 | 4.1 | Bright |
| 5 | 4.1 | Bright |
| 6 | 4.2 | Bright |
| 7 | 4.2 | Bright |
| 8 | 4.3 | Bright |
| 9 | 4.3 | Bright |
| 10 | 4.4 | Bright |
| 11 | 4.4 | Bright |
| 12 | 4.5 | Bright |
| 13 | 4.5 | Bright |
| 14 | 4.5 | Bright |
| 15 | 4.6 | Bright |
| 16 | 4.6 | Bright |
| 17 | 4.7 | Bright |
| 18 | 4.7 | Bright |
| 19 | 4.7 | Bright |
| 20 | 4.8 | Bright |
| 21 | 4.8 | Bright |
| 22 | 4.8 | Bright |
| 23 | 4.8 | Bright |
| 24 | 4.8 | Bright |
| 25 | 4.9 | Bright |
| 26 | 4.9 | Bright |
| 27 | 4.9 | Bright |
| 28 | 4.9 | Bright |
| 29 | 4.9 | Bright |
| 30 | 4.9 | Bright |
Is April a good time to visit Ostfildern?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is a reasonable time to visit Ostfildern for sightseeing.
What to pack for Ostfildern in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, Ostfildern sees daytime highs around 15°C and nights near 5°C. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.
UV index in Ostfildern in April
Clear-sky midday UV in April peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ostfildern peaks around July 15 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 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 | 2 | 4 | 4 | 6 | 7 | 8 | 6 | 4 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | Very high | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 4 | Moderate |
| Apr | 4 | Moderate |
| May | 6 | High |
| Jun | 7 | High |
| Jul | 8 | Very high |
| Aug | 6 | High |
| Sep | 4 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Where is Ostfildern?
Ostfildern sits at 48.7°N, 9.2°E, 409 m above sea level, in Germany. The nearest listed city is Esslingen, 4.0 km away.
Topography around Ostfildern
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ostfildern.
Within 3 km, the terrain around Ostfildern has only modest variations in elevation — a maximum elevation change of 227 m around an average of 365 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 347 m; within 80 km, large variations in elevation — a maximum elevation change of 1,077 m.
The land around Ostfildern is covered by trees (41%) and grassland (20%) within 3 km, trees (48%) and artificial surfaces (21%) within 16 km, and trees (48%) and cropland (25%) within 80 km.
Germany travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 80% of US
- price level, 2025
- GDP per capita
- $60,496
- 2025
- Happiness
- 6.9 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 0.9
- per 100k, 2023
- Road deaths
- 3.8
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very high
- EF EPI 615
- 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 Ostfildern (48.727°, 9.2495°, elevation 409 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. 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).