Caldera weather in September
In September, Caldera sees average daytime highs of 16°C and overnight lows near 11°C, with 1 mm of rain across 0.1 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 6th-wettest month of the year here.
Day-to-day highs hold fairly steady near 16°C through the month. The sky is clear or mostly clear about 74% of the time in September, and the air most often feels dry.
Daylight stretches from about 11 h 24 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Caldera's 6th-clearest and 7th-windiest month. For the whole year in context, see Caldera's year-round climate.
- Daytime high
- 16°
- 9th warmest
- Overnight low
- 11°
- 3rd coldest
- Rainfall
- 1 mm
- 0.1 wet days
- Daylight
- 11 h 48 min
- 7:42 AM – 7:33 PM
- Cloud cover
- 28%
- 6th clearest
- Wind
- 10 km/h
- 7th windiest
- Solar energy
- 6.46 kWh/m²
- Travel score
- 6.9
- out of 10
Caldera is settlement in Chile.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Day-to-day highs hold fairly steady near 16°C through the month.
A typical September day in Caldera reaches about 16°C in the afternoon and slips back to 11°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 18°C. Set against its neighbours, September runs on par with August and on par with 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) | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 |
| Avg low (°C) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 16 | 11 |
| 2 | 16 | 11 |
| 3 | 16 | 11 |
| 4 | 16 | 11 |
| 5 | 16 | 11 |
| 6 | 16 | 11 |
| 7 | 16 | 11 |
| 8 | 16 | 11 |
| 9 | 16 | 11 |
| 10 | 16 | 11 |
| 11 | 16 | 11 |
| 12 | 16 | 11 |
| 13 | 16 | 11 |
| 14 | 16 | 11 |
| 15 | 16 | 11 |
| 16 | 16 | 11 |
| 17 | 16 | 11 |
| 18 | 16 | 11 |
| 19 | 16 | 11 |
| 20 | 16 | 11 |
| 21 | 16 | 11 |
| 22 | 16 | 11 |
| 23 | 16 | 11 |
| 24 | 16 | 11 |
| 25 | 17 | 11 |
| 26 | 17 | 11 |
| 27 | 17 | 11 |
| 28 | 17 | 11 |
| 29 | 17 | 11 |
| 30 | 17 | 11 |
Caldera weather by month
How September compares with the rest of the year at a glance. September is the 9th-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 21° / 16° | 0 | 0 | 13.5 | 8.6 |
| Feb | 21° / 16° | 0 | 0 | 13 | 8.7 |
| Mar | 20° / 15° | 1 | 0.1 | 12.2 | 8.5 |
| Apr | 19° / 14° | 1 | 0.1 | 11.4 | 8.0 |
| May | 17° / 13° | 3 | 0.7 | 10.7 | 7.2 |
| Jun | 16° / 11° | 4 | 0.5 | 10.3 | 6.6 |
| Jul | 16° / 11° | 4 | 0.7 | 10.5 | 6.3 |
| Aug | 16° / 11° | 3 | 0.4 | 11 | 6.5 |
| Sep | 16° / 11° | 1 | 0.1 | 11.8 | 6.9 |
| Oct | 17° / 12° | 0 | 0.1 | 12.6 | 7.3 |
| Nov | 18° / 13° | 0 | 0 | 13.3 | 7.9 |
| Dec | 20° / 14° | 0 | 0 | 13.7 | 8.3 |
Cloud cover in September
The sky is clear or mostly clear about 74% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 11%. Skies tend to open up 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 (%) | 84 | 85 | 85 | 86 | 86 | 86 | 87 | 88 | 88 | 89 | 89 | 89 | 90 | 90 | 90 | 90 | 91 | 91 | 91 | 91 | 91 | 91 | 91 | 91 | 90 | 90 | 90 | 90 | 90 | 89 |
| Cloudier (%) | 16 | 15 | 15 | 14 | 14 | 14 | 13 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 11 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 84 | 16 |
| 2 | 85 | 15 |
| 3 | 85 | 15 |
| 4 | 86 | 14 |
| 5 | 86 | 14 |
| 6 | 86 | 14 |
| 7 | 87 | 13 |
| 8 | 88 | 12 |
| 9 | 88 | 12 |
| 10 | 89 | 11 |
| 11 | 89 | 11 |
| 12 | 89 | 11 |
| 13 | 90 | 10 |
| 14 | 90 | 10 |
| 15 | 90 | 10 |
| 16 | 90 | 10 |
| 17 | 91 | 9 |
| 18 | 91 | 9 |
| 19 | 91 | 9 |
| 20 | 91 | 9 |
| 21 | 91 | 9 |
| 22 | 91 | 9 |
| 23 | 91 | 9 |
| 24 | 91 | 9 |
| 25 | 90 | 10 |
| 26 | 90 | 10 |
| 27 | 90 | 10 |
| 28 | 90 | 10 |
| 29 | 90 | 10 |
| 30 | 89 | 11 |
Chance of precipitation in September
Caldera gets around 1 mm of rain over 0.1 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 1% and peaks near 1% 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 (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rain chance (%) | |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 1 |
| 10 | 1 |
| 11 | 1 |
| 12 | 1 |
| 13 | 1 |
| 14 | 1 |
| 15 | 1 |
| 16 | 1 |
| 17 | 0 |
| 18 | 0 |
| 19 | 0 |
| 20 | 0 |
| 21 | 0 |
| 22 | 0 |
| 23 | 0 |
| 24 | 0 |
| 25 | 0 |
| 26 | 0 |
| 27 | 0 |
| 28 | 0 |
| 29 | 0 |
| 30 | 0 |
Humidity in September
Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the dry band about 99% 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 (%) | 99 | 99 | 99 | 99 | 99 | 99 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 100 | 100 |
| Comfortable (%) | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| 1 | 99 | 1 |
| 2 | 99 | 1 |
| 3 | 99 | 1 |
| 4 | 99 | 1 |
| 5 | 99 | 1 |
| 6 | 99 | 1 |
| 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 | 99 | 1 |
| 20 | 99 | 1 |
| 21 | 99 | 1 |
| 22 | 99 | 1 |
| 23 | 99 | 1 |
| 24 | 99 | 1 |
| 25 | 99 | 1 |
| 26 | 99 | 1 |
| 27 | 99 | 1 |
| 28 | 99 | 1 |
| 29 | 100 | 0 |
| 30 | 100 | 0 |
Wind in September
Winds average 10 km/h in September.
Across September, daily wind ranges from about 10 km/h on the calmest days to 11 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 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 |
| 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 | 10 | calm |
| 13 | 10 | calm |
| 14 | 10 | calm |
| 15 | 10 | calm |
| 16 | 10 | calm |
| 17 | 10 | calm |
| 18 | 10 | calm |
| 19 | 10 | calm |
| 20 | 10 | calm |
| 21 | 10 | calm |
| 22 | 10 | calm |
| 23 | 10 | calm |
| 24 | 10 | calm |
| 25 | 10 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
| 29 | 11 | calm |
| 30 | 11 | calm |
Sunrise & sunset in September
Daylight runs from about 11 h 24 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 48 minutes over September. Sunrise moves from 8:00 AM to 7:26 AM, and sunset from 7:26 PM to 7:39 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) | 11.4 | 11.5 | 11.5 | 11.5 | 11.5 | 11.6 | 11.6 | 11.6 | 11.7 | 11.7 | 11.7 | 11.7 | 11.8 | 11.8 | 11.8 | 11.8 | 11.9 | 11.9 | 11.9 | 12.0 | 12.0 | 12.0 | 12.0 | 12.1 | 12.1 | 12.1 | 12.1 | 12.2 | 12.2 | 12.2 |
| Sunrise (AM) | 8:00 | 7:59 | 7:58 | 7:56 | 7:55 | 7:54 | 7:53 | 7:52 | 7:51 | 7:49 | 7:48 | 7:47 | 7:46 | 7:45 | 7:44 | 7:42 | 7:41 | 7:40 | 7:39 | 7:38 | 7:36 | 7:35 | 7:34 | 7:33 | 7:32 | 7:30 | 7:29 | 7:28 | 7:27 | 7:26 |
| Sunset (PM) | 7:26 | 7:27 | 7:27 | 7:27 | 7:28 | 7:28 | 7:29 | 7:29 | 7:30 | 7:30 | 7:31 | 7:31 | 7:32 | 7:32 | 7:32 | 7:33 | 7:33 | 7:34 | 7:34 | 7:35 | 7:35 | 7:36 | 7:36 | 7:37 | 7:37 | 7:37 | 7:38 | 7:38 | 7:39 | 7:39 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.4 | 8:00 | 7:26 |
| 2 | 11.5 | 7:59 | 7:27 |
| 3 | 11.5 | 7:58 | 7:27 |
| 4 | 11.5 | 7:56 | 7:27 |
| 5 | 11.5 | 7:55 | 7:28 |
| 6 | 11.6 | 7:54 | 7:28 |
| 7 | 11.6 | 7:53 | 7:29 |
| 8 | 11.6 | 7:52 | 7:29 |
| 9 | 11.7 | 7:51 | 7:30 |
| 10 | 11.7 | 7:49 | 7:30 |
| 11 | 11.7 | 7:48 | 7:31 |
| 12 | 11.7 | 7:47 | 7:31 |
| 13 | 11.8 | 7:46 | 7:32 |
| 14 | 11.8 | 7:45 | 7:32 |
| 15 | 11.8 | 7:44 | 7:32 |
| 16 | 11.8 | 7:42 | 7:33 |
| 17 | 11.9 | 7:41 | 7:33 |
| 18 | 11.9 | 7:40 | 7:34 |
| 19 | 11.9 | 7:39 | 7:34 |
| 20 | 12.0 | 7:38 | 7:35 |
| 21 | 12.0 | 7:36 | 7:35 |
| 22 | 12.0 | 7:35 | 7:36 |
| 23 | 12.0 | 7:34 | 7:36 |
| 24 | 12.1 | 7:33 | 7:37 |
| 25 | 12.1 | 7:32 | 7:37 |
| 26 | 12.1 | 7:30 | 7:37 |
| 27 | 12.1 | 7:29 | 7:38 |
| 28 | 12.2 | 7:28 | 7:38 |
| 29 | 12.2 | 7:27 | 7:39 |
| 30 | 12.2 | 7:26 | 7:39 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 6.46 kWh/m².
For context, solar energy here swings from a low near 3.84 kWh/m² to a high of 9 kWh/m² in December across the year — September's 6.46 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) | 5.8 | 5.8 | 5.9 | 5.9 | 6.0 | 6.0 | 6.1 | 6.1 | 6.2 | 6.2 | 6.3 | 6.3 | 6.3 | 6.4 | 6.4 | 6.5 | 6.5 | 6.6 | 6.6 | 6.7 | 6.7 | 6.8 | 6.8 | 6.8 | 6.9 | 6.9 | 7.0 | 7.0 | 7.0 | 7.1 |
| Level | Bright | Bright | Bright | Bright | Bright | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.8 | Bright |
| 2 | 5.8 | Bright |
| 3 | 5.9 | Bright |
| 4 | 5.9 | Bright |
| 5 | 6.0 | Bright |
| 6 | 6.0 | Intense |
| 7 | 6.1 | Intense |
| 8 | 6.1 | Intense |
| 9 | 6.2 | Intense |
| 10 | 6.2 | Intense |
| 11 | 6.3 | Intense |
| 12 | 6.3 | Intense |
| 13 | 6.3 | Intense |
| 14 | 6.4 | Intense |
| 15 | 6.4 | Intense |
| 16 | 6.5 | Intense |
| 17 | 6.5 | Intense |
| 18 | 6.6 | Intense |
| 19 | 6.6 | Intense |
| 20 | 6.7 | Intense |
| 21 | 6.7 | Intense |
| 22 | 6.8 | Intense |
| 23 | 6.8 | Intense |
| 24 | 6.8 | Intense |
| 25 | 6.9 | Intense |
| 26 | 6.9 | Intense |
| 27 | 7.0 | Intense |
| 28 | 7.0 | Intense |
| 29 | 7.0 | Intense |
| 30 | 7.1 | Intense |
Is September a good time to visit Caldera?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is a reasonable time to visit Caldera for sightseeing.
What to pack for Caldera in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Caldera sees daytime highs around 16°C and nights near 11°C. Pack sun protection. Worth having: a warm layer.
Sea temperature near Caldera in September
The nearest coast averages about 14°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 February at about 20°C and coldest in August near 14°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) | 19 | 20 | 19 | 18 | 16 | 15 | 15 | 14 | 14 | 15 | 16 | 18 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Cool | Bracing | Bracing | Bracing | Cool | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 19 | Cool |
| Feb | 20 | Cool |
| Mar | 19 | Cool |
| Apr | 18 | Cool |
| May | 16 | Cool |
| Jun | 15 | Cool |
| Jul | 15 | Bracing |
| Aug | 14 | Bracing |
| Sep | 14 | Bracing |
| Oct | 15 | Cool |
| Nov | 16 | Cool |
| Dec | 18 | Cool |
UV index in Caldera in September
Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Caldera peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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) | 14 | 14 | 12 | 7 | 5 | 4 | 4 | 6 | 9 | 12 | 12 | 13 |
| Level | Extreme | Extreme | Extreme | High | High | Moderate | Moderate | High | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 14 | Extreme |
| Mar | 12 | Extreme |
| Apr | 7 | High |
| May | 5 | High |
| Jun | 4 | Moderate |
| Jul | 4 | Moderate |
| Aug | 6 | High |
| Sep | 9 | Very high |
| Oct | 12 | Extreme |
| Nov | 12 | Extreme |
| Dec | 13 | Extreme |
Where is Caldera?
Caldera sits at 27.1°S, 70.8°W, 23 m above sea level, in Chile. The nearest listed city is Copiapó, 59 km away.
Topography around Caldera
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Caldera.
Within 3 km, the terrain around Caldera has only modest variations in elevation — a maximum elevation change of 82 m around an average of 27 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 789 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,395 m.
The land around Caldera is covered by bare terrain (64%) and water (23%) within 3 km, bare terrain (60%) and water (38%) within 16 km, and bare terrain (65%) and water (33%) within 80 km.
Chile travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F / L
- 220 V · 50 Hz
- Prices
- ≈ 48% of US
- price level, 2025
- GDP per capita
- $17,995
- 2025
- Happiness
- 6.3 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 6.3
- per 100k, 2023
- Road deaths
- 14.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 517
- 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 Caldera (-27.0681°, -70.8192°, elevation 23 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).