San Isidro weather in September
In September, San Isidro sees average daytime highs of 23°C and overnight lows near 21°C, with 20 mm of rain across 4.3 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 9th-wettest month of the year here.
Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 73% of the time in September, and the air most often feels muggy.
Daylight stretches from about 12 h 36 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is San Isidro's 4th-clearest and 9th-windiest month. For the whole year in context, see San Isidro's year-round climate.
- Daytime high
- 23°
- 3rd warmest
- Overnight low
- 21°
- 11th coldest
- Rainfall
- 20 mm
- 4.3 wet days
- Daylight
- 12 h 12 min
- 6:56 AM – 7:05 PM
- Cloud cover
- 27%
- 4th clearest
- Wind
- 13 km/h
- 9th windiest
- Solar energy
- 6.17 kWh/m²
- Travel score
- 8.4
- out of 10
San Isidro is human settlement in Spain.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Day-to-day highs hold fairly steady near 23°C through the month.
A typical September day in San Isidro reaches about 23°C in the afternoon and slips back to 21°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 25°C. Set against its neighbours, September runs about 1°C cooler than August and about 1°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) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg low (°C) | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 24 | 22 |
| 2 | 24 | 22 |
| 3 | 24 | 22 |
| 4 | 24 | 22 |
| 5 | 24 | 21 |
| 6 | 24 | 21 |
| 7 | 24 | 21 |
| 8 | 23 | 21 |
| 9 | 23 | 21 |
| 10 | 23 | 21 |
| 11 | 23 | 21 |
| 12 | 23 | 21 |
| 13 | 23 | 21 |
| 14 | 23 | 21 |
| 15 | 23 | 21 |
| 16 | 23 | 21 |
| 17 | 23 | 21 |
| 18 | 23 | 21 |
| 19 | 23 | 21 |
| 20 | 23 | 21 |
| 21 | 23 | 21 |
| 22 | 23 | 21 |
| 23 | 23 | 21 |
| 24 | 23 | 21 |
| 25 | 23 | 21 |
| 26 | 23 | 21 |
| 27 | 23 | 21 |
| 28 | 23 | 21 |
| 29 | 23 | 21 |
| 30 | 23 | 21 |
San Isidro weather by month
How September compares with the rest of the year at a glance. September is the 3rd-warmest and 9th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 18° / 16° | 33 | 5.9 | 10.4 | 6.6 |
| Feb | 17° / 16° | 37 | 6.2 | 11 | 6.6 |
| Mar | 18° / 16° | 39 | 7 | 11.8 | 6.7 |
| Apr | 18° / 16° | 35 | 7.5 | 12.7 | 6.7 |
| May | 19° / 17° | 24 | 6.2 | 13.4 | 7.3 |
| Jun | 21° / 19° | 12 | 3.3 | 13.7 | 8.3 |
| Jul | 23° / 21° | 1 | 0.4 | 13.6 | 9.6 |
| Aug | 24° / 22° | 3 | 1 | 13 | 9.5 |
| Sep | 23° / 21° | 20 | 4.3 | 12.2 | 8.4 |
| Oct | 22° / 20° | 42 | 8.7 | 11.3 | 7.3 |
| Nov | 20° / 19° | 34 | 7.2 | 10.6 | 7.0 |
| Dec | 19° / 17° | 46 | 7.3 | 10.3 | 6.9 |
Cloud cover in September
The sky is clear or mostly clear about 73% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 15%. Skies tend to cloud over as the month goes on.
| 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 (%) | 92 | 91 | 91 | 90 | 90 | 89 | 88 | 88 | 87 | 87 | 86 | 85 | 85 | 85 | 84 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 82 | 81 | 81 | 81 | 81 | 80 | 80 |
| Cloudier (%) | 8 | 9 | 9 | 10 | 10 | 11 | 12 | 12 | 13 | 13 | 14 | 15 | 15 | 15 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 19 | 19 | 19 | 19 | 20 | 20 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 92 | 8 |
| 2 | 91 | 9 |
| 3 | 91 | 9 |
| 4 | 90 | 10 |
| 5 | 90 | 10 |
| 6 | 89 | 11 |
| 7 | 88 | 12 |
| 8 | 88 | 12 |
| 9 | 87 | 13 |
| 10 | 87 | 13 |
| 11 | 86 | 14 |
| 12 | 85 | 15 |
| 13 | 85 | 15 |
| 14 | 85 | 15 |
| 15 | 84 | 16 |
| 16 | 83 | 17 |
| 17 | 83 | 17 |
| 18 | 83 | 17 |
| 19 | 83 | 17 |
| 20 | 83 | 17 |
| 21 | 83 | 17 |
| 22 | 83 | 17 |
| 23 | 83 | 17 |
| 24 | 82 | 18 |
| 25 | 81 | 19 |
| 26 | 81 | 19 |
| 27 | 81 | 19 |
| 28 | 81 | 19 |
| 29 | 80 | 20 |
| 30 | 80 | 20 |
Chance of precipitation in September
San Isidro gets around 20 mm of rain over 4.3 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 15% and peaks near 22% on the wettest days. The odds climb toward the end of the month.
| 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 (%) | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 10 | 10 | 11 | 12 | 12 | 13 | 14 | 14 | 15 | 16 | 16 | 17 | 17 | 18 | 19 | 19 | 20 | 20 | 21 | 21 | 22 | 22 | 22 |
| Rain chance (%) | |
|---|---|
| 1 | 7 |
| 2 | 7 |
| 3 | 7 |
| 4 | 8 |
| 5 | 8 |
| 6 | 9 |
| 7 | 9 |
| 8 | 10 |
| 9 | 10 |
| 10 | 11 |
| 11 | 12 |
| 12 | 12 |
| 13 | 13 |
| 14 | 14 |
| 15 | 14 |
| 16 | 15 |
| 17 | 16 |
| 18 | 16 |
| 19 | 17 |
| 20 | 17 |
| 21 | 18 |
| 22 | 19 |
| 23 | 19 |
| 24 | 20 |
| 25 | 20 |
| 26 | 21 |
| 27 | 21 |
| 28 | 22 |
| 29 | 22 |
| 30 | 22 |
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 56% of days. Sticky, muggy-or-worse air turns up on roughly 58% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comfortable (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 5 |
| Humid (%) | 41 | 40 | 39 | 39 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 39 | 39 | 40 | 40 | 40 | 40 | 40 | 41 | 41 | 41 | 41 | 41 | 42 | 43 | 43 | 44 |
| Muggy (%) | 56 | 57 | 58 | 58 | 59 | 59 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 57 | 57 | 56 | 56 | 56 | 56 | 55 | 54 | 54 | 54 | 53 | 53 | 52 | 51 | 51 | 50 |
| Oppressive (%) | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|
| 1 | 2 | 41 | 56 | 1 |
| 2 | 2 | 40 | 57 | 1 |
| 3 | 2 | 39 | 58 | 1 |
| 4 | 2 | 39 | 58 | 1 |
| 5 | 2 | 38 | 59 | 1 |
| 6 | 2 | 38 | 59 | 1 |
| 7 | 2 | 38 | 58 | 2 |
| 8 | 2 | 38 | 58 | 2 |
| 9 | 2 | 38 | 58 | 2 |
| 10 | 2 | 38 | 58 | 2 |
| 11 | 2 | 38 | 58 | 2 |
| 12 | 2 | 38 | 58 | 2 |
| 13 | 2 | 38 | 58 | 2 |
| 14 | 2 | 38 | 58 | 2 |
| 15 | 2 | 39 | 57 | 2 |
| 16 | 2 | 39 | 57 | 2 |
| 17 | 2 | 40 | 56 | 2 |
| 18 | 2 | 40 | 56 | 2 |
| 19 | 2 | 40 | 56 | 2 |
| 20 | 2 | 40 | 56 | 2 |
| 21 | 3 | 40 | 55 | 2 |
| 22 | 3 | 41 | 54 | 2 |
| 23 | 3 | 41 | 54 | 2 |
| 24 | 3 | 41 | 54 | 2 |
| 25 | 4 | 41 | 53 | 2 |
| 26 | 4 | 41 | 53 | 2 |
| 27 | 4 | 42 | 52 | 2 |
| 28 | 4 | 43 | 51 | 2 |
| 29 | 4 | 43 | 51 | 2 |
| 30 | 5 | 44 | 50 | 2 |
Wind in September
Winds average 13 km/h in September.
Across September, daily wind ranges from about 12 km/h on the calmest days to 15 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) | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| 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 | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 15 | light breeze |
| 2 | 15 | light breeze |
| 3 | 15 | light breeze |
| 4 | 15 | light breeze |
| 5 | 15 | light breeze |
| 6 | 15 | light breeze |
| 7 | 14 | light breeze |
| 8 | 14 | light breeze |
| 9 | 14 | light breeze |
| 10 | 14 | light breeze |
| 11 | 14 | light breeze |
| 12 | 13 | light breeze |
| 13 | 13 | light breeze |
| 14 | 13 | light breeze |
| 15 | 13 | light breeze |
| 16 | 13 | light breeze |
| 17 | 13 | light breeze |
| 18 | 12 | light breeze |
| 19 | 12 | light breeze |
| 20 | 12 | light breeze |
| 21 | 12 | light breeze |
| 22 | 12 | light breeze |
| 23 | 12 | light breeze |
| 24 | 12 | light breeze |
| 25 | 12 | calm |
| 26 | 12 | calm |
| 27 | 12 | calm |
| 28 | 12 | calm |
| 29 | 12 | calm |
| 30 | 12 | calm |
Sunrise & sunset in September
Daylight runs from about 12 h 36 min at the start of September to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 48 minutes over September. Sunrise moves from 6:48 AM to 7:03 AM, and sunset from 7:24 PM to 6:48 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) | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.8 | 11.8 | 11.8 | 11.8 |
| Sunrise (AM) | 6:48 | 6:49 | 6:49 | 6:50 | 6:50 | 6:51 | 6:51 | 6:52 | 6:52 | 6:53 | 6:53 | 6:54 | 6:54 | 6:55 | 6:55 | 6:56 | 6:56 | 6:57 | 6:57 | 6:58 | 6:58 | 6:59 | 6:59 | 7:00 | 7:00 | 7:01 | 7:01 | 7:02 | 7:02 | 7:03 |
| Sunset (PM) | 7:24 | 7:22 | 7:21 | 7:20 | 7:19 | 7:18 | 7:16 | 7:15 | 7:14 | 7:13 | 7:12 | 7:10 | 7:09 | 7:08 | 7:07 | 7:05 | 7:04 | 7:03 | 7:02 | 7:01 | 6:59 | 6:58 | 6:57 | 6:56 | 6:54 | 6:53 | 6:52 | 6:51 | 6:50 | 6:48 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.6 | 6:48 | 7:24 |
| 2 | 12.6 | 6:49 | 7:22 |
| 3 | 12.5 | 6:49 | 7:21 |
| 4 | 12.5 | 6:50 | 7:20 |
| 5 | 12.5 | 6:50 | 7:19 |
| 6 | 12.4 | 6:51 | 7:18 |
| 7 | 12.4 | 6:51 | 7:16 |
| 8 | 12.4 | 6:52 | 7:15 |
| 9 | 12.4 | 6:52 | 7:14 |
| 10 | 12.3 | 6:53 | 7:13 |
| 11 | 12.3 | 6:53 | 7:12 |
| 12 | 12.3 | 6:54 | 7:10 |
| 13 | 12.3 | 6:54 | 7:09 |
| 14 | 12.2 | 6:55 | 7:08 |
| 15 | 12.2 | 6:55 | 7:07 |
| 16 | 12.2 | 6:56 | 7:05 |
| 17 | 12.1 | 6:56 | 7:04 |
| 18 | 12.1 | 6:57 | 7:03 |
| 19 | 12.1 | 6:57 | 7:02 |
| 20 | 12.1 | 6:58 | 7:01 |
| 21 | 12.0 | 6:58 | 6:59 |
| 22 | 12.0 | 6:59 | 6:58 |
| 23 | 12.0 | 6:59 | 6:57 |
| 24 | 11.9 | 7:00 | 6:56 |
| 25 | 11.9 | 7:00 | 6:54 |
| 26 | 11.9 | 7:01 | 6:53 |
| 27 | 11.8 | 7:01 | 6:52 |
| 28 | 11.8 | 7:02 | 6:51 |
| 29 | 11.8 | 7:02 | 6:50 |
| 30 | 11.8 | 7:03 | 6:48 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 6.17 kWh/m².
For context, solar energy here swings from a low near 3.5 kWh/m² to a high of 7.72 kWh/m² in June across the year — September's 6.17 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) | 6.7 | 6.7 | 6.6 | 6.6 | 6.6 | 6.5 | 6.5 | 6.5 | 6.4 | 6.4 | 6.3 | 6.3 | 6.3 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 | 6.0 | 6.0 | 5.9 | 5.9 | 5.9 | 5.8 | 5.8 | 5.8 | 5.7 | 5.7 | 5.7 | 5.6 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.7 | Intense |
| 2 | 6.7 | Intense |
| 3 | 6.6 | Intense |
| 4 | 6.6 | Intense |
| 5 | 6.6 | Intense |
| 6 | 6.5 | Intense |
| 7 | 6.5 | Intense |
| 8 | 6.5 | Intense |
| 9 | 6.4 | Intense |
| 10 | 6.4 | Intense |
| 11 | 6.3 | Intense |
| 12 | 6.3 | Intense |
| 13 | 6.3 | Intense |
| 14 | 6.2 | Intense |
| 15 | 6.2 | Intense |
| 16 | 6.1 | Intense |
| 17 | 6.1 | Intense |
| 18 | 6.1 | Intense |
| 19 | 6.0 | Intense |
| 20 | 6.0 | Bright |
| 21 | 5.9 | Bright |
| 22 | 5.9 | Bright |
| 23 | 5.9 | Bright |
| 24 | 5.8 | Bright |
| 25 | 5.8 | Bright |
| 26 | 5.8 | Bright |
| 27 | 5.7 | Bright |
| 28 | 5.7 | Bright |
| 29 | 5.7 | Bright |
| 30 | 5.6 | Bright |
Hazard calendar for San Isidro
In September, San Isidro sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
San Isidro sits in the Atlantic hurricane belt; the season peaks August–October.
San Isidro sees seasonal dust haze (July–August), heaviest in July.
Is September a good time to visit San Isidro?
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 San Isidro for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for San Isidro in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, San Isidro sees daytime highs around 23°C and nights near 21°C. Pack sun protection. Worth having: light clothes. About 4 days see rain.
Sea temperature near San Isidro in September
The nearest coast averages about 24°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in September at about 24°C and coldest in March near 19°C.
It's comfortable for a long swim from May 9 to Jan 10 — about 8.1 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 20 | 19 | 19 | 19 | 20 | 21 | 22 | 23 | 24 | 24 | 22 | 21 |
| Comfort | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 20 | Cool |
| Feb | 19 | Cool |
| Mar | 19 | Cool |
| Apr | 19 | Cool |
| May | 20 | Refreshing |
| Jun | 21 | Refreshing |
| Jul | 22 | Refreshing |
| Aug | 23 | Refreshing |
| Sep | 24 | Refreshing |
| Oct | 24 | Refreshing |
| Nov | 22 | Refreshing |
| Dec | 21 | Refreshing |
UV index in San Isidro in September
Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in San Isidro peaks around July 17 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 6 | 9 | 9 | 10 | 11 | 11 | 11 | 8 | 9 | 5 | 4 |
| Level | Moderate | High | Very high | Very high | Very high | Extreme | Extreme | Extreme | Very high | Very high | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 6 | High |
| Mar | 9 | Very high |
| Apr | 9 | Very high |
| May | 10 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 8 | Very high |
| Oct | 9 | Very high |
| Nov | 5 | Moderate |
| Dec | 4 | Moderate |
Air quality in San Isidro 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 San Isidro is worst in February — around 19 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (June, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 18 | 19 | 10 | 7 | 7 | 6 | 9 | 11 | 8 | 9 | 8 | 17 |
| Level | Moderate | Moderate | Good | Good | Good | Good | Good | Good | Good | Good | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 19 | Moderate |
| Mar | 10 | Good |
| Apr | 7 | Good |
| May | 7 | Good |
| Jun | 6 | Good |
| Jul | 9 | Good |
| Aug | 11 | Good |
| Sep | 8 | Good |
| Oct | 9 | Good |
| Nov | 8 | Good |
| Dec | 17 | Moderate |
Where is San Isidro?
San Isidro sits at 28.1°N, 16.6°W, 207 m above sea level, in Spain. The nearest listed city is Granadilla de Abona, 5.0 km away.
Topography around San Isidro
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Isidro.
Within 3 km, the terrain around San Isidro has large variations in elevation — a maximum elevation change of 605 m around an average of 214 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,658 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,670 m.
The land around San Isidro is covered by grassland (54%) within 3 km, water (42%) and grassland (25%) within 16 km, and water (83%) 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 San Isidro (28.0762°, -16.558°, elevation 207 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).