Copacabana weather in September
In September, Copacabana sees average daytime highs of 13°C and overnight lows near 7°C, with 37 mm of precipitation across 8.3 wet days and about 11.9 hours of daylight. It is the 4th-warmest and 8th-wettest month of the year here.
Day-to-day highs hold fairly steady near 13°C through the month. The sky is clear or mostly clear about 59% of the time in September, and the air most often feels dry.
Daylight stretches from about 11 h 42 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Copacabana's 5th-clearest and 1st-windiest month. For the whole year in context, see Copacabana's year-round climate.
- Daytime high
- 13°
- 4th warmest
- Overnight low
- 7°
- 4th coldest
- Precipitation
- 37 mm
- 8.3 wet days
- Daylight
- 11 h 54 min
- 6:33 AM – 6:28 PM
- Cloud cover
- 38%
- 5th clearest
- Wind
- 11 km/h
- 1st windiest
- Solar energy
- 7.18 kWh/m²
- Travel score
- 4.2
- out of 10
Copacabana is Bolivian town on the shore of Lake Titicaca.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Day-to-day highs hold fairly steady near 13°C through the month.
A typical September day in Copacabana reaches about 13°C in the afternoon and slips back to 7°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 15°C. Set against its neighbours, September runs about 1°C warmer than 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) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| Avg low (°C) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 13 | 6 |
| 2 | 13 | 6 |
| 3 | 13 | 6 |
| 4 | 13 | 6 |
| 5 | 13 | 6 |
| 6 | 13 | 6 |
| 7 | 13 | 6 |
| 8 | 13 | 6 |
| 9 | 13 | 6 |
| 10 | 13 | 7 |
| 11 | 13 | 7 |
| 12 | 13 | 7 |
| 13 | 13 | 7 |
| 14 | 13 | 7 |
| 15 | 13 | 7 |
| 16 | 13 | 7 |
| 17 | 13 | 7 |
| 18 | 13 | 7 |
| 19 | 13 | 7 |
| 20 | 13 | 7 |
| 21 | 13 | 7 |
| 22 | 13 | 7 |
| 23 | 13 | 7 |
| 24 | 14 | 7 |
| 25 | 14 | 7 |
| 26 | 14 | 7 |
| 27 | 14 | 7 |
| 28 | 14 | 7 |
| 29 | 14 | 7 |
| 30 | 14 | 7 |
Copacabana weather by month
How September compares with the rest of the year at a glance. September is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 13° / 8° | 286 | 28.7 | 0.1 | 12.9 | 2.0 |
| Feb | 13° / 8° | 261 | 25.6 | 0 | 12.5 | 2.0 |
| Mar | 13° / 8° | 218 | 27.1 | 0.1 | 12.1 | 2.2 |
| Apr | 13° / 8° | 90 | 16.9 | 0 | 11.6 | 3.0 |
| May | 13° / 7° | 25 | 6.3 | 0 | 11.3 | 3.9 |
| Jun | 12° / 6° | 12 | 2.9 | 0.1 | 11.1 | 4.0 |
| Jul | 12° / 6° | 15 | 3.5 | 0.3 | 11.1 | 3.9 |
| Aug | 13° / 6° | 16 | 4 | 0.5 | 11.5 | 4.2 |
| Sep | 13° / 7° | 37 | 8.3 | 0.2 | 11.9 | 4.2 |
| Oct | 14° / 8° | 70 | 13.7 | 0.6 | 12.4 | 3.8 |
| Nov | 14° / 9° | 88 | 16.1 | 0 | 12.8 | 3.6 |
| Dec | 13° / 8° | 198 | 25.2 | 0.1 | 12.9 | 2.4 |
Cloud cover in September
The sky is clear or mostly clear about 59% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 21%. 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 (%) | 89 | 88 | 88 | 88 | 87 | 87 | 87 | 86 | 85 | 84 | 83 | 82 | 81 | 81 | 79 | 79 | 77 | 77 | 76 | 75 | 74 | 74 | 72 | 72 | 71 | 71 | 70 | 69 | 69 | 68 |
| Cloudier (%) | 11 | 12 | 12 | 12 | 13 | 13 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 19 | 21 | 21 | 23 | 23 | 24 | 25 | 26 | 26 | 28 | 28 | 29 | 29 | 30 | 31 | 31 | 32 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 89 | 11 |
| 2 | 88 | 12 |
| 3 | 88 | 12 |
| 4 | 88 | 12 |
| 5 | 87 | 13 |
| 6 | 87 | 13 |
| 7 | 87 | 13 |
| 8 | 86 | 14 |
| 9 | 85 | 15 |
| 10 | 84 | 16 |
| 11 | 83 | 17 |
| 12 | 82 | 18 |
| 13 | 81 | 19 |
| 14 | 81 | 19 |
| 15 | 79 | 21 |
| 16 | 79 | 21 |
| 17 | 77 | 23 |
| 18 | 77 | 23 |
| 19 | 76 | 24 |
| 20 | 75 | 25 |
| 21 | 74 | 26 |
| 22 | 74 | 26 |
| 23 | 72 | 28 |
| 24 | 72 | 28 |
| 25 | 71 | 29 |
| 26 | 71 | 29 |
| 27 | 70 | 30 |
| 28 | 69 | 31 |
| 29 | 69 | 31 |
| 30 | 68 | 32 |
Chance of precipitation in September
Copacabana gets around 37 mm of rain and snow over 8.3 wet days in September. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 27% and peaks near 36% on the wettest days, and about 0 day brings snow. 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 (%) | 17 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 23 | 24 | 25 | 25 | 26 | 27 | 27 | 28 | 29 | 29 | 30 | 31 | 31 | 32 | 32 | 33 | 33 | 34 | 34 | 35 | 35 | 36 |
| Rain chance (%) | |
|---|---|
| 1 | 17 |
| 2 | 17 |
| 3 | 18 |
| 4 | 19 |
| 5 | 20 |
| 6 | 21 |
| 7 | 22 |
| 8 | 23 |
| 9 | 23 |
| 10 | 24 |
| 11 | 25 |
| 12 | 25 |
| 13 | 26 |
| 14 | 27 |
| 15 | 27 |
| 16 | 28 |
| 17 | 29 |
| 18 | 29 |
| 19 | 30 |
| 20 | 31 |
| 21 | 31 |
| 22 | 32 |
| 23 | 32 |
| 24 | 33 |
| 25 | 33 |
| 26 | 34 |
| 27 | 34 |
| 28 | 35 |
| 29 | 35 |
| 30 | 36 |
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 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 | 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 |
| 29 | 100 |
| 30 | 100 |
Wind in September
Winds average 11 km/h in September, the windiest month of the year.
Across September, daily wind ranges from about 11 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) | 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 |
| 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 | 11 | calm |
| 2 | 11 | calm |
| 3 | 11 | calm |
| 4 | 11 | calm |
| 5 | 11 | calm |
| 6 | 11 | calm |
| 7 | 11 | calm |
| 8 | 11 | calm |
| 9 | 11 | calm |
| 10 | 11 | calm |
| 11 | 11 | calm |
| 12 | 11 | calm |
| 13 | 11 | calm |
| 14 | 11 | calm |
| 15 | 11 | calm |
| 16 | 11 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 11 | calm |
| 22 | 11 | calm |
| 23 | 11 | calm |
| 24 | 11 | calm |
| 25 | 11 | 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 42 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 24 minutes over September. Sunrise moves from 6:46 AM to 6:22 AM, and sunset from 6:26 PM to 6:29 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) | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 |
| Sunrise (AM) | 6:46 | 6:45 | 6:44 | 6:43 | 6:42 | 6:42 | 6:41 | 6:40 | 6:39 | 6:38 | 6:38 | 6:37 | 6:36 | 6:35 | 6:34 | 6:33 | 6:32 | 6:32 | 6:31 | 6:30 | 6:29 | 6:28 | 6:27 | 6:27 | 6:26 | 6:25 | 6:24 | 6:23 | 6:23 | 6:22 |
| Sunset (PM) | 6:26 | 6:27 | 6:27 | 6:27 | 6:27 | 6:27 | 6:27 | 6:27 | 6:27 | 6:27 | 6:27 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:29 | 6:29 | 6:29 | 6:29 | 6:29 | 6:29 | 6:29 | 6:29 | 6:29 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.7 | 6:46 | 6:26 |
| 2 | 11.7 | 6:45 | 6:27 |
| 3 | 11.7 | 6:44 | 6:27 |
| 4 | 11.7 | 6:43 | 6:27 |
| 5 | 11.7 | 6:42 | 6:27 |
| 6 | 11.8 | 6:42 | 6:27 |
| 7 | 11.8 | 6:41 | 6:27 |
| 8 | 11.8 | 6:40 | 6:27 |
| 9 | 11.8 | 6:39 | 6:27 |
| 10 | 11.8 | 6:38 | 6:27 |
| 11 | 11.8 | 6:38 | 6:27 |
| 12 | 11.8 | 6:37 | 6:28 |
| 13 | 11.9 | 6:36 | 6:28 |
| 14 | 11.9 | 6:35 | 6:28 |
| 15 | 11.9 | 6:34 | 6:28 |
| 16 | 11.9 | 6:33 | 6:28 |
| 17 | 11.9 | 6:32 | 6:28 |
| 18 | 11.9 | 6:32 | 6:28 |
| 19 | 12.0 | 6:31 | 6:28 |
| 20 | 12.0 | 6:30 | 6:28 |
| 21 | 12.0 | 6:29 | 6:28 |
| 22 | 12.0 | 6:28 | 6:29 |
| 23 | 12.0 | 6:27 | 6:29 |
| 24 | 12.0 | 6:27 | 6:29 |
| 25 | 12.1 | 6:26 | 6:29 |
| 26 | 12.1 | 6:25 | 6:29 |
| 27 | 12.1 | 6:24 | 6:29 |
| 28 | 12.1 | 6:23 | 6:29 |
| 29 | 12.1 | 6:23 | 6:29 |
| 30 | 12.1 | 6:22 | 6:29 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 7.18 kWh/m².
For context, solar energy here swings from a low near 5.39 kWh/m² to a high of 7.83 kWh/m² in November across the year — September's 7.18 kWh/m² sits near the top of that range.
| 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) | 6.8 | 6.9 | 6.9 | 6.9 | 6.9 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.1 | 7.1 | 7.1 | 7.1 | 7.2 | 7.2 | 7.2 | 7.2 | 7.2 | 7.3 | 7.3 | 7.3 | 7.3 | 7.4 | 7.4 | 7.4 | 7.4 | 7.5 | 7.5 | 7.5 |
| Level | 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 | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.8 | Intense |
| 2 | 6.9 | Intense |
| 3 | 6.9 | Intense |
| 4 | 6.9 | Intense |
| 5 | 6.9 | Intense |
| 6 | 7.0 | Intense |
| 7 | 7.0 | Intense |
| 8 | 7.0 | Intense |
| 9 | 7.0 | Intense |
| 10 | 7.0 | Intense |
| 11 | 7.1 | Intense |
| 12 | 7.1 | Intense |
| 13 | 7.1 | Intense |
| 14 | 7.1 | Intense |
| 15 | 7.2 | Intense |
| 16 | 7.2 | Intense |
| 17 | 7.2 | Intense |
| 18 | 7.2 | Intense |
| 19 | 7.2 | Intense |
| 20 | 7.3 | Intense |
| 21 | 7.3 | Intense |
| 22 | 7.3 | Intense |
| 23 | 7.3 | Intense |
| 24 | 7.4 | Intense |
| 25 | 7.4 | Intense |
| 26 | 7.4 | Intense |
| 27 | 7.4 | Intense |
| 28 | 7.5 | Intense |
| 29 | 7.5 | Intense |
| 30 | 7.5 | Intense |
Hazard calendar for Copacabana
None of Copacabana's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Copacabana's monsoon runs December–March, when most of the year's rain falls.
Is September a good time to visit Copacabana?
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 Copacabana for sightseeing.
What to pack for Copacabana in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Copacabana sees daytime highs around 13°C and nights near 7°C. Pack sun protection. Worth having: a warm layer and rain gear. About 8 days see rain.
UV index in Copacabana in September
Clear-sky midday UV in September peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Copacabana peaks around February 8 at about 19 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 9 (very high).
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) | 19 | 19 | 16 | 14 | 11 | 9 | 9 | 12 | 14 | 16 | 17 | 17 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 19 | Extreme |
| Feb | 19 | Extreme |
| Mar | 16 | Extreme |
| Apr | 14 | Extreme |
| May | 11 | Extreme |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 12 | Extreme |
| Sep | 14 | Extreme |
| Oct | 16 | Extreme |
| Nov | 17 | Extreme |
| Dec | 17 | Extreme |
Where is Copacabana?
Copacabana sits at 16.2°S, 69.1°W, 0 m above sea level, in Bolivia. The nearest listed city is Isla del Sol, 17 km away.
Topography around Copacabana
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Copacabana.
Within 3 km, the terrain around Copacabana has significant variations in elevation — a maximum elevation change of 544 m around an average of 3,932 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 719 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,996 m.
The land around Copacabana is covered by grassland (62%) and water (25%) within 3 km, water (58%) and grassland (32%) within 16 km, and grassland (56%) and water (28%) within 80 km.
Bolivia travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / C
- 230 V · 50 Hz
- Prices
- ≈ 40% of US
- price level, 2025
- GDP per capita
- $5,148
- 2025
- Happiness
- 5.8 / 10
- World Happiness, 2025
- Homicide rate
- 4.4
- per 100k, 2023
- Road deaths
- 21.1
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Moderate
- EF EPI 521
- 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 Copacabana (-16.1699°, -69.0792°, elevation 0 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).