Castelló de la Plana weather in September
In September, Castelló de la Plana sees average daytime highs of 26°C and overnight lows near 19°C, with 45 mm of rain across 6.3 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.
Highs ease over the month, from about 28°C in the first days to 25°C by the end. The sky is clear or mostly clear about 47% of the time in September, and the air most often feels muggy.
Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Castelló de la Plana's 6th-clearest and 9th-windiest month. For the whole year in context, see Castelló de la Plana's year-round climate.
- Daytime high
- 26°
- 3rd warmest
- Overnight low
- 19°
- 10th coldest
- Rainfall
- 45 mm
- 6.3 wet days
- Daylight
- 12 h 18 min
- 6:47 AM – 7:02 PM
- Cloud cover
- 45%
- 6th clearest
- Wind
- 9 km/h
- 9th windiest
- Solar energy
- 4.77 kWh/m²
- Travel score
- 7.5
- out of 10
Castelló de la Plana is innhabited place in Castellón de la Plana, Spain.
- Air quality
- Moderate
- PM2.5 13.7 µg/m³ · 2019
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Highs ease over the month, from about 28°C in the first days to 25°C by the end.
A typical September day in Castelló de la Plana reaches about 26°C in the afternoon and slips back to 19°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 29°C. Set against its neighbours, September runs about 3°C cooler than August and about 4°C warmer than October.
| 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) | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg low (°C) | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 21 |
| 2 | 28 | 21 |
| 3 | 28 | 21 |
| 4 | 27 | 20 |
| 5 | 27 | 20 |
| 6 | 27 | 20 |
| 7 | 27 | 20 |
| 8 | 27 | 20 |
| 9 | 27 | 20 |
| 10 | 27 | 20 |
| 11 | 27 | 20 |
| 12 | 27 | 19 |
| 13 | 27 | 19 |
| 14 | 26 | 19 |
| 15 | 26 | 19 |
| 16 | 26 | 19 |
| 17 | 26 | 19 |
| 18 | 26 | 19 |
| 19 | 26 | 18 |
| 20 | 26 | 18 |
| 21 | 26 | 18 |
| 22 | 25 | 18 |
| 23 | 25 | 18 |
| 24 | 25 | 18 |
| 25 | 25 | 18 |
| 26 | 25 | 18 |
| 27 | 25 | 17 |
| 28 | 25 | 17 |
| 29 | 25 | 17 |
| 30 | 25 | 17 |
Castelló de la Plana weather by month
How September compares with the rest of the year at a glance. September is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 15° / 7° | 36 | 4.6 | 9.5 | 5.1 |
| Feb | 15° / 7° | 28 | 4.1 | 10.4 | 5.5 |
| Mar | 17° / 9° | 34 | 4.9 | 11.7 | 6.4 |
| Apr | 19° / 11° | 37 | 5.9 | 13 | 6.9 |
| May | 22° / 15° | 32 | 4.9 | 14.2 | 7.6 |
| Jun | 26° / 19° | 19 | 3.1 | 14.8 | 8.3 |
| Jul | 28° / 21° | 9 | 1.5 | 14.5 | 7.8 |
| Aug | 29° / 22° | 20 | 3.7 | 13.6 | 6.9 |
| Sep | 26° / 19° | 45 | 6.3 | 12.3 | 7.5 |
| Oct | 23° / 15° | 50 | 6.3 | 10.9 | 7.5 |
| Nov | 18° / 11° | 41 | 5.3 | 9.8 | 6.7 |
| Dec | 15° / 8° | 35 | 5 | 9.2 | 5.4 |
Cloud cover in September
The sky is clear or mostly clear about 47% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 31%.
| 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 (%) | 71 | 71 | 71 | 71 | 71 | 70 | 70 | 70 | 70 | 70 | 69 | 69 | 69 | 69 | 68 | 68 | 68 | 67 | 67 | 66 | 66 | 66 | 67 | 67 | 67 | 67 | 68 | 68 | 68 | 68 |
| Cloudier (%) | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 32 | 32 | 32 | 33 | 33 | 34 | 34 | 34 | 33 | 33 | 33 | 33 | 32 | 32 | 32 | 32 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 71 | 29 |
| 2 | 71 | 29 |
| 3 | 71 | 29 |
| 4 | 71 | 29 |
| 5 | 71 | 29 |
| 6 | 70 | 30 |
| 7 | 70 | 30 |
| 8 | 70 | 30 |
| 9 | 70 | 30 |
| 10 | 70 | 30 |
| 11 | 69 | 31 |
| 12 | 69 | 31 |
| 13 | 69 | 31 |
| 14 | 69 | 31 |
| 15 | 68 | 32 |
| 16 | 68 | 32 |
| 17 | 68 | 32 |
| 18 | 67 | 33 |
| 19 | 67 | 33 |
| 20 | 66 | 34 |
| 21 | 66 | 34 |
| 22 | 66 | 34 |
| 23 | 67 | 33 |
| 24 | 67 | 33 |
| 25 | 67 | 33 |
| 26 | 67 | 33 |
| 27 | 68 | 32 |
| 28 | 68 | 32 |
| 29 | 68 | 32 |
| 30 | 68 | 32 |
Chance of precipitation in September
Castelló de la Plana gets around 45 mm of rain over 6.3 wet days in September. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 20% and peaks near 21% on the wettest days.
| 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 (%) | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 19 |
| Rain chance (%) | |
|---|---|
| 1 | 19 |
| 2 | 20 |
| 3 | 20 |
| 4 | 20 |
| 5 | 20 |
| 6 | 20 |
| 7 | 20 |
| 8 | 20 |
| 9 | 20 |
| 10 | 20 |
| 11 | 20 |
| 12 | 19 |
| 13 | 19 |
| 14 | 19 |
| 15 | 19 |
| 16 | 19 |
| 17 | 20 |
| 18 | 20 |
| 19 | 20 |
| 20 | 20 |
| 21 | 21 |
| 22 | 21 |
| 23 | 21 |
| 24 | 21 |
| 25 | 21 |
| 26 | 21 |
| 27 | 21 |
| 28 | 20 |
| 29 | 20 |
| 30 | 19 |
Humidity in September
Most of September feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the muggy band about 36% of days. Sticky, muggy-or-worse air turns up on roughly 45% of them.
| 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 (%) | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 8 | 9 | 10 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 17 | 18 | 18 | 19 | 19 | 20 | 20 | 21 | 22 |
| Comfortable (%) | 6 | 6 | 7 | 8 | 8 | 9 | 9 | 10 | 10 | 11 | 12 | 12 | 13 | 13 | 14 | 14 | 15 | 15 | 16 | 17 | 17 | 18 | 18 | 19 | 20 | 20 | 21 | 22 | 22 | 23 |
| Humid (%) | 21 | 22 | 23 | 23 | 24 | 25 | 25 | 26 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 29 | 29 | 30 | 30 | 31 | 32 | 32 | 33 | 34 | 34 | 35 | 35 | 35 | 35 | 36 |
| Muggy (%) | 41 | 42 | 42 | 43 | 43 | 44 | 44 | 44 | 44 | 44 | 43 | 43 | 42 | 41 | 40 | 39 | 38 | 37 | 35 | 34 | 32 | 31 | 29 | 28 | 26 | 25 | 23 | 22 | 20 | 19 |
| Oppressive (%) | 27 | 25 | 23 | 21 | 19 | 18 | 16 | 14 | 13 | 12 | 10 | 9 | 8 | 7 | 6 | 5 | 5 | 4 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Miserable (%) | 1 | 1 | 1 | 1 | 1 | 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 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 4 | 6 | 21 | 41 | 27 | 1 |
| 2 | 4 | 6 | 22 | 42 | 25 | 1 |
| 3 | 4 | 7 | 23 | 42 | 23 | 1 |
| 4 | 4 | 8 | 23 | 43 | 21 | 1 |
| 5 | 4 | 8 | 24 | 43 | 19 | 1 |
| 6 | 5 | 9 | 25 | 44 | 18 | 0 |
| 7 | 5 | 9 | 25 | 44 | 16 | 0 |
| 8 | 6 | 10 | 26 | 44 | 14 | 0 |
| 9 | 6 | 10 | 26 | 44 | 13 | 0 |
| 10 | 7 | 11 | 27 | 44 | 12 | 0 |
| 11 | 8 | 12 | 27 | 43 | 10 | 0 |
| 12 | 9 | 12 | 27 | 43 | 9 | 0 |
| 13 | 10 | 13 | 28 | 42 | 8 | 0 |
| 14 | 10 | 13 | 28 | 41 | 7 | 0 |
| 15 | 11 | 14 | 28 | 40 | 6 | 0 |
| 16 | 12 | 14 | 29 | 39 | 5 | 0 |
| 17 | 13 | 15 | 29 | 38 | 5 | 0 |
| 18 | 14 | 15 | 30 | 37 | 4 | 0 |
| 19 | 15 | 16 | 30 | 35 | 3 | 0 |
| 20 | 16 | 17 | 31 | 34 | 3 | 0 |
| 21 | 17 | 17 | 32 | 32 | 2 | 0 |
| 22 | 17 | 18 | 32 | 31 | 2 | 0 |
| 23 | 18 | 18 | 33 | 29 | 2 | 0 |
| 24 | 18 | 19 | 34 | 28 | 1 | 0 |
| 25 | 19 | 20 | 34 | 26 | 1 | 0 |
| 26 | 19 | 20 | 35 | 25 | 1 | 0 |
| 27 | 20 | 21 | 35 | 23 | 1 | 0 |
| 28 | 20 | 22 | 35 | 22 | 1 | 0 |
| 29 | 21 | 22 | 35 | 20 | 1 | 0 |
| 30 | 22 | 23 | 36 | 19 | 1 | 0 |
Wind in September
Winds average 9 km/h in September.
Across September, daily wind ranges from about 9 km/h on the calmest days to 9 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) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 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 | 9 | calm |
| 2 | 9 | calm |
| 3 | 9 | calm |
| 4 | 9 | calm |
| 5 | 9 | calm |
| 6 | 9 | calm |
| 7 | 9 | calm |
| 8 | 9 | calm |
| 9 | 9 | calm |
| 10 | 9 | calm |
| 11 | 9 | 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 September
Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 78 minutes over September. Sunrise moves from 6:32 AM to 7:01 AM, and sunset from 7:28 PM to 6:38 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) | 12.9 | 12.9 | 12.8 | 12.8 | 12.7 | 12.7 | 12.7 | 12.6 | 12.6 | 12.5 | 12.5 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.1 | 12.1 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.8 | 11.8 | 11.7 | 11.7 | 11.6 |
| Sunrise (AM) | 6:32 | 6:33 | 6:34 | 6:35 | 6:36 | 6:37 | 6:38 | 6:39 | 6:40 | 6:41 | 6:42 | 6:43 | 6:44 | 6:45 | 6:46 | 6:47 | 6:48 | 6:49 | 6:50 | 6:51 | 6:52 | 6:53 | 6:54 | 6:55 | 6:56 | 6:57 | 6:58 | 6:59 | 7:00 | 7:01 |
| Sunset (PM) | 7:28 | 7:26 | 7:24 | 7:23 | 7:21 | 7:19 | 7:18 | 7:16 | 7:14 | 7:13 | 7:11 | 7:09 | 7:07 | 7:06 | 7:04 | 7:02 | 7:01 | 6:59 | 6:57 | 6:55 | 6:54 | 6:52 | 6:50 | 6:49 | 6:47 | 6:45 | 6:43 | 6:42 | 6:40 | 6:38 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.9 | 6:32 | 7:28 |
| 2 | 12.9 | 6:33 | 7:26 |
| 3 | 12.8 | 6:34 | 7:24 |
| 4 | 12.8 | 6:35 | 7:23 |
| 5 | 12.7 | 6:36 | 7:21 |
| 6 | 12.7 | 6:37 | 7:19 |
| 7 | 12.7 | 6:38 | 7:18 |
| 8 | 12.6 | 6:39 | 7:16 |
| 9 | 12.6 | 6:40 | 7:14 |
| 10 | 12.5 | 6:41 | 7:13 |
| 11 | 12.5 | 6:42 | 7:11 |
| 12 | 12.4 | 6:43 | 7:09 |
| 13 | 12.4 | 6:44 | 7:07 |
| 14 | 12.3 | 6:45 | 7:06 |
| 15 | 12.3 | 6:46 | 7:04 |
| 16 | 12.3 | 6:47 | 7:02 |
| 17 | 12.2 | 6:48 | 7:01 |
| 18 | 12.2 | 6:49 | 6:59 |
| 19 | 12.1 | 6:50 | 6:57 |
| 20 | 12.1 | 6:51 | 6:55 |
| 21 | 12.0 | 6:52 | 6:54 |
| 22 | 12.0 | 6:53 | 6:52 |
| 23 | 11.9 | 6:54 | 6:50 |
| 24 | 11.9 | 6:55 | 6:49 |
| 25 | 11.9 | 6:56 | 6:47 |
| 26 | 11.8 | 6:57 | 6:45 |
| 27 | 11.8 | 6:58 | 6:43 |
| 28 | 11.7 | 6:59 | 6:42 |
| 29 | 11.7 | 7:00 | 6:40 |
| 30 | 11.6 | 7:01 | 6:38 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 4.77 kWh/m².
For context, solar energy here swings from a low near 2.08 kWh/m² to a high of 7.16 kWh/m² in June across the year — September's 4.77 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) | 5.4 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.1 | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.8 | 4.8 | 4.8 | 4.7 | 4.7 | 4.6 | 4.6 | 4.5 | 4.5 | 4.5 | 4.4 | 4.4 | 4.3 | 4.3 | 4.3 | 4.3 |
| Level | 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 | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.4 | Bright |
| 2 | 5.3 | Bright |
| 3 | 5.3 | Bright |
| 4 | 5.3 | Bright |
| 5 | 5.2 | Bright |
| 6 | 5.2 | Bright |
| 7 | 5.1 | Bright |
| 8 | 5.1 | Bright |
| 9 | 5.1 | Bright |
| 10 | 5.0 | Bright |
| 11 | 5.0 | Bright |
| 12 | 5.0 | Bright |
| 13 | 4.9 | Bright |
| 14 | 4.9 | Bright |
| 15 | 4.8 | Bright |
| 16 | 4.8 | Bright |
| 17 | 4.8 | Bright |
| 18 | 4.7 | Bright |
| 19 | 4.7 | Bright |
| 20 | 4.6 | Bright |
| 21 | 4.6 | Bright |
| 22 | 4.5 | Bright |
| 23 | 4.5 | Bright |
| 24 | 4.5 | Bright |
| 25 | 4.4 | Bright |
| 26 | 4.4 | Bright |
| 27 | 4.3 | Bright |
| 28 | 4.3 | Bright |
| 29 | 4.3 | Bright |
| 30 | 4.3 | Bright |
Is September a good time to visit Castelló de la Plana?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is one of the better times to visit Castelló de la Plana for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Castelló de la Plana in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Castelló de la Plana sees daytime highs around 26°C and nights near 19°C. Worth packing: light clothes and sun protection. About 6 days see rain.
Sea temperature near Castelló de la Plana in September
The nearest coast averages about 25°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 14 km away) is warmest in August at about 26°C and coldest in February near 14°C.
It's comfortable for a long swim from Jun 1 to Nov 2 — about 5.1 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 14 | 14 | 14 | 16 | 18 | 22 | 25 | 26 | 25 | 22 | 19 | 16 |
| Comfort | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Warm | Warm | Warm | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 14 | Bracing |
| Feb | 14 | Bracing |
| Mar | 14 | Bracing |
| Apr | 16 | Cool |
| May | 18 | Cool |
| Jun | 22 | Refreshing |
| Jul | 25 | Warm |
| Aug | 26 | Warm |
| Sep | 25 | Warm |
| Oct | 22 | Refreshing |
| Nov | 19 | Cool |
| Dec | 16 | Cool |
UV index in Castelló de la Plana in September
Clear-sky midday UV in September peaks 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 Castelló de la Plana peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 7 | 6 | 9 | 9 | 8 | 6 | 4 | 2 | 2 |
| Level | Low | Moderate | High | High | High | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | High |
| Apr | 7 | High |
| May | 6 | High |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Air quality in Castelló de la Plana in September
Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.
Air quality in Castelló de la Plana is worst in March — around 18 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 9 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Castelló de la Plana's WHO annual average of 13.7 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 12 | 14 | 18 | 16 | 14 | 14 | 15 | 15 | 13 | 12 | 9 | 10 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Moderate |
| Feb | 14 | Moderate |
| Mar | 18 | Moderate |
| Apr | 16 | Moderate |
| May | 14 | Moderate |
| Jun | 14 | Moderate |
| Jul | 15 | Moderate |
| Aug | 15 | Moderate |
| Sep | 13 | Moderate |
| Oct | 12 | Moderate |
| Nov | 9 | Good |
| Dec | 10 | Good |
Where is Castelló de la Plana?
Castelló de la Plana sits at 40.0°N, 0.0°W, 30 m above sea level, in Spain. The nearest listed city is Almassora, 4.0 km away.
Topography around Castelló de la Plana
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Castelló de la Plana.
Within 3 km, the terrain around Castelló de la Plana has only modest variations in elevation — a maximum elevation change of 185 m around an average of 40 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 728 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,022 m.
The land around Castelló de la Plana is covered by artificial surfaces (43%) and grassland (31%) within 3 km, trees (34%) and water (28%) within 16 km, and water (38%) and trees (30%) within 80 km.
Spain travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 65% of US
- price level, 2025
- GDP per capita
- $38,627
- 2025
- Happiness
- 6.5 / 10
- World Happiness, 2025
- Safe drinking water
- 99%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2023
- Road deaths
- 3.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 540
- 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 Castelló de la Plana (39.9857°, -0.0493°, elevation 30 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).