Portoviejo weather in September
In September, Portoviejo sees average daytime highs of 28°C and overnight lows near 21°C, with 20 mm of rain across 5.1 wet days and about 12 hours of daylight. It is the 9th-warmest and 10th-wettest month of the year here.
Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 5% of the time in September, and the air most often feels muggy.
Daylight stretches from about 12 hours at the start of September to 12 hours by month's end. Set against the rest of the year, September is Portoviejo's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Portoviejo's year-round climate.
- Daytime high
- 28°
- 9th warmest
- Overnight low
- 21°
- 2nd coldest
- Rainfall
- 20 mm
- 5.1 wet days
- Daylight
- 12 hours
- 6:16 AM – 6:16 PM
- Cloud cover
- 80%
- 2nd clearest
- Wind
- 8 km/h
- 2nd windiest
- Solar energy
- 4.41 kWh/m²
- Travel score
- 6.0
- out of 10
Portoviejo is city in Ecuador, capital of the Manabí Province.
- Air quality
- Good
- PM10 24.6 µg/m³ · 2012
- Density
- 6,822/km²
- people per km²
- Founded
- 1535
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Day-to-day highs hold fairly steady near 28°C through the month.
A typical September day in Portoviejo reaches about 28°C in the afternoon and slips back to 21°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 31°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) | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Avg low (°C) | 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 | 21 | 21 | 21 | 21 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 21 |
| 2 | 28 | 21 |
| 3 | 28 | 21 |
| 4 | 28 | 21 |
| 5 | 28 | 21 |
| 6 | 28 | 21 |
| 7 | 28 | 21 |
| 8 | 28 | 21 |
| 9 | 28 | 21 |
| 10 | 28 | 21 |
| 11 | 28 | 21 |
| 12 | 28 | 21 |
| 13 | 28 | 21 |
| 14 | 28 | 21 |
| 15 | 28 | 21 |
| 16 | 28 | 21 |
| 17 | 28 | 21 |
| 18 | 28 | 21 |
| 19 | 28 | 21 |
| 20 | 28 | 21 |
| 21 | 29 | 21 |
| 22 | 29 | 21 |
| 23 | 29 | 21 |
| 24 | 29 | 21 |
| 25 | 29 | 21 |
| 26 | 29 | 21 |
| 27 | 29 | 21 |
| 28 | 29 | 21 |
| 29 | 29 | 21 |
| 30 | 29 | 21 |
How September really feels in Portoviejo
Once humidity and wind are folded in, September 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.
September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Portoviejo weather by month
How September compares with the rest of the year at a glance. September is the 9th-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 23° | 132 | 18.2 | 12.1 | 4.1 |
| Feb | 29° / 23° | 253 | 22.7 | 12 | 3.4 |
| Mar | 29° / 23° | 234 | 23.1 | 12 | 3.5 |
| Apr | 29° / 23° | 158 | 20.3 | 12 | 3.7 |
| May | 29° / 23° | 75 | 14.3 | 12 | 4.5 |
| Jun | 28° / 22° | 32 | 7.9 | 11.9 | 5.6 |
| Jul | 28° / 21° | 22 | 5.9 | 11.9 | 6.3 |
| Aug | 28° / 21° | 14 | 4 | 12 | 6.3 |
| Sep | 28° / 21° | 20 | 5.1 | 12 | 6.0 |
| Oct | 29° / 21° | 18 | 4.5 | 12 | 5.9 |
| Nov | 29° / 21° | 22 | 4.3 | 12 | 5.7 |
| Dec | 29° / 22° | 61 | 10.1 | 12.1 | 5.0 |
Cloud cover in September
The sky is clear or mostly clear about 5% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 85%.
| 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 (%) | 17 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 15 | 13 | 12 | 12 | 12 | 11 | 10 | 10 | 11 | 11 | 11 | 10 | 10 |
| Cloudier (%) | 83 | 82 | 82 | 82 | 82 | 82 | 81 | 81 | 81 | 81 | 82 | 82 | 83 | 83 | 83 | 84 | 84 | 85 | 87 | 88 | 88 | 88 | 89 | 90 | 90 | 89 | 89 | 89 | 90 | 90 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 17 | 83 |
| 2 | 18 | 82 |
| 3 | 18 | 82 |
| 4 | 18 | 82 |
| 5 | 18 | 82 |
| 6 | 18 | 82 |
| 7 | 19 | 81 |
| 8 | 19 | 81 |
| 9 | 19 | 81 |
| 10 | 19 | 81 |
| 11 | 18 | 82 |
| 12 | 18 | 82 |
| 13 | 17 | 83 |
| 14 | 17 | 83 |
| 15 | 17 | 83 |
| 16 | 16 | 84 |
| 17 | 16 | 84 |
| 18 | 15 | 85 |
| 19 | 13 | 87 |
| 20 | 12 | 88 |
| 21 | 12 | 88 |
| 22 | 12 | 88 |
| 23 | 11 | 89 |
| 24 | 10 | 90 |
| 25 | 10 | 90 |
| 26 | 11 | 89 |
| 27 | 11 | 89 |
| 28 | 11 | 89 |
| 29 | 10 | 90 |
| 30 | 10 | 90 |
Chance of precipitation in September
Portoviejo gets around 20 mm of rain over 5.1 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 17% and peaks near 19% 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 (%) | 16 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| Rain chance (%) | |
|---|---|
| 1 | 16 |
| 2 | 16 |
| 3 | 16 |
| 4 | 17 |
| 5 | 17 |
| 6 | 17 |
| 7 | 18 |
| 8 | 18 |
| 9 | 18 |
| 10 | 19 |
| 11 | 19 |
| 12 | 19 |
| 13 | 19 |
| 14 | 19 |
| 15 | 19 |
| 16 | 18 |
| 17 | 18 |
| 18 | 18 |
| 19 | 17 |
| 20 | 17 |
| 21 | 17 |
| 22 | 17 |
| 23 | 16 |
| 24 | 16 |
| 25 | 16 |
| 26 | 16 |
| 27 | 16 |
| 28 | 16 |
| 29 | 16 |
| 30 | 16 |
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 83% of days. Sticky, muggy-or-worse air turns up on roughly 86% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Muggy (%) | 80 | 80 | 80 | 80 | 81 | 81 | 81 | 81 | 81 | 81 | 81 | 81 | 82 | 82 | 83 | 82 | 82 | 83 | 83 | 84 | 84 | 84 | 84 | 85 | 85 | 85 | 85 | 85 | 85 | 85 |
| Oppressive (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|
| 1 | 18 | 80 | 2 |
| 2 | 18 | 80 | 2 |
| 3 | 18 | 80 | 2 |
| 4 | 18 | 80 | 2 |
| 5 | 17 | 81 | 2 |
| 6 | 17 | 81 | 2 |
| 7 | 17 | 81 | 2 |
| 8 | 17 | 81 | 2 |
| 9 | 17 | 81 | 2 |
| 10 | 16 | 81 | 3 |
| 11 | 16 | 81 | 3 |
| 12 | 16 | 81 | 3 |
| 13 | 15 | 82 | 3 |
| 14 | 15 | 82 | 3 |
| 15 | 14 | 83 | 3 |
| 16 | 14 | 82 | 4 |
| 17 | 14 | 82 | 4 |
| 18 | 13 | 83 | 4 |
| 19 | 13 | 83 | 4 |
| 20 | 12 | 84 | 4 |
| 21 | 12 | 84 | 4 |
| 22 | 11 | 84 | 5 |
| 23 | 11 | 84 | 5 |
| 24 | 10 | 85 | 5 |
| 25 | 10 | 85 | 5 |
| 26 | 10 | 85 | 5 |
| 27 | 10 | 85 | 5 |
| 28 | 10 | 85 | 5 |
| 29 | 10 | 85 | 5 |
| 30 | 10 | 85 | 5 |
Wind in September
Winds average 8 km/h in September.
Across September, daily wind ranges from about 8 km/h on the calmest days to 8 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) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| 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 | 8 | calm |
| 2 | 8 | calm |
| 3 | 8 | calm |
| 4 | 8 | calm |
| 5 | 8 | calm |
| 6 | 8 | calm |
| 7 | 8 | calm |
| 8 | 8 | calm |
| 9 | 8 | calm |
| 10 | 8 | calm |
| 11 | 8 | calm |
| 12 | 8 | calm |
| 13 | 8 | calm |
| 14 | 8 | calm |
| 15 | 8 | calm |
| 16 | 8 | calm |
| 17 | 8 | calm |
| 18 | 8 | calm |
| 19 | 8 | calm |
| 20 | 8 | calm |
| 21 | 8 | calm |
| 22 | 8 | calm |
| 23 | 8 | calm |
| 24 | 8 | calm |
| 25 | 8 | calm |
| 26 | 8 | calm |
| 27 | 8 | calm |
| 28 | 8 | calm |
| 29 | 8 | calm |
| 30 | 8 | calm |
Sunrise & sunset in September
Daylight runs from about 12 hours at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 0 minutes over September. Sunrise moves from 6:22 AM to 6:11 AM, and sunset from 6:21 PM to 6:11 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) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunrise (AM) | 6:22 | 6:22 | 6:21 | 6:21 | 6:21 | 6:20 | 6:20 | 6:19 | 6:19 | 6:19 | 6:18 | 6:18 | 6:18 | 6:17 | 6:17 | 6:16 | 6:16 | 6:15 | 6:15 | 6:15 | 6:14 | 6:14 | 6:14 | 6:13 | 6:13 | 6:12 | 6:12 | 6:12 | 6:11 | 6:11 |
| Sunset (PM) | 6:21 | 6:21 | 6:20 | 6:20 | 6:20 | 6:19 | 6:19 | 6:19 | 6:18 | 6:18 | 6:18 | 6:17 | 6:17 | 6:17 | 6:16 | 6:16 | 6:16 | 6:15 | 6:15 | 6:15 | 6:14 | 6:14 | 6:14 | 6:13 | 6:13 | 6:13 | 6:12 | 6:12 | 6:12 | 6:11 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.0 | 6:22 | 6:21 |
| 2 | 12.0 | 6:22 | 6:21 |
| 3 | 12.0 | 6:21 | 6:20 |
| 4 | 12.0 | 6:21 | 6:20 |
| 5 | 12.0 | 6:21 | 6:20 |
| 6 | 12.0 | 6:20 | 6:19 |
| 7 | 12.0 | 6:20 | 6:19 |
| 8 | 12.0 | 6:19 | 6:19 |
| 9 | 12.0 | 6:19 | 6:18 |
| 10 | 12.0 | 6:19 | 6:18 |
| 11 | 12.0 | 6:18 | 6:18 |
| 12 | 12.0 | 6:18 | 6:17 |
| 13 | 12.0 | 6:18 | 6:17 |
| 14 | 12.0 | 6:17 | 6:17 |
| 15 | 12.0 | 6:17 | 6:16 |
| 16 | 12.0 | 6:16 | 6:16 |
| 17 | 12.0 | 6:16 | 6:16 |
| 18 | 12.0 | 6:15 | 6:15 |
| 19 | 12.0 | 6:15 | 6:15 |
| 20 | 12.0 | 6:15 | 6:15 |
| 21 | 12.0 | 6:14 | 6:14 |
| 22 | 12.0 | 6:14 | 6:14 |
| 23 | 12.0 | 6:14 | 6:14 |
| 24 | 12.0 | 6:13 | 6:13 |
| 25 | 12.0 | 6:13 | 6:13 |
| 26 | 12.0 | 6:12 | 6:13 |
| 27 | 12.0 | 6:12 | 6:12 |
| 28 | 12.0 | 6:12 | 6:12 |
| 29 | 12.0 | 6:11 | 6:12 |
| 30 | 12.0 | 6:11 | 6:11 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 4.41 kWh/m².
For context, solar energy here swings from a low near 3.7 kWh/m² to a high of 4.65 kWh/m² in March across the year — September's 4.41 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) | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.3 | 4.3 | 4.3 | 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 | 4.4 | Bright |
| 2 | 4.4 | Bright |
| 3 | 4.4 | Bright |
| 4 | 4.4 | Bright |
| 5 | 4.4 | Bright |
| 6 | 4.4 | Bright |
| 7 | 4.4 | Bright |
| 8 | 4.4 | Bright |
| 9 | 4.4 | Bright |
| 10 | 4.4 | Bright |
| 11 | 4.4 | Bright |
| 12 | 4.4 | Bright |
| 13 | 4.4 | Bright |
| 14 | 4.4 | Bright |
| 15 | 4.4 | Bright |
| 16 | 4.4 | Bright |
| 17 | 4.4 | Bright |
| 18 | 4.4 | Bright |
| 19 | 4.4 | Bright |
| 20 | 4.4 | Bright |
| 21 | 4.4 | Bright |
| 22 | 4.4 | Bright |
| 23 | 4.4 | Bright |
| 24 | 4.3 | Bright |
| 25 | 4.3 | Bright |
| 26 | 4.3 | Bright |
| 27 | 4.3 | Bright |
| 28 | 4.3 | Bright |
| 29 | 4.3 | Bright |
| 30 | 4.3 | Bright |
Hazard calendar for Portoviejo
None of Portoviejo's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Portoviejo's monsoon runs January–April, when most of the year's rain falls.
Is September a good time to visit Portoviejo?
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 Portoviejo for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Portoviejo in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Portoviejo sees daytime highs around 28°C and nights near 21°C. Pack light clothes. About 5 days see rain.
Sea temperature near Portoviejo 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 at the nearest coast (about 28 km away) is warmest in February at about 26°C and coldest in September near 24°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 24 | 25 | 25 | 25 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 26 | Warm |
| Feb | 26 | Warm |
| Mar | 26 | Warm |
| Apr | 26 | Warm |
| May | 26 | Warm |
| Jun | 26 | Warm |
| Jul | 25 | Warm |
| Aug | 25 | Warm |
| Sep | 24 | Warm |
| Oct | 25 | Warm |
| Nov | 25 | Warm |
| Dec | 25 | Warm |
UV index in Portoviejo in September
Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Portoviejo peaks around March 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 at about 10 (extreme).
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) | 13 | 15 | 15 | 13 | 12 | 11 | 10 | 11 | 11 | 13 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 15 | Extreme |
| Mar | 15 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 11 | Extreme |
| Jul | 10 | Extreme |
| Aug | 11 | Extreme |
| Sep | 11 | Extreme |
| Oct | 13 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Air quality in Portoviejo 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 Portoviejo is worst in March — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (August, 12 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) | 16 | 19 | 22 | 20 | 17 | 15 | 13 | 12 | 13 | 14 | 19 | 19 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 16 | Moderate |
| Feb | 19 | Moderate |
| Mar | 22 | Moderate |
| Apr | 20 | Moderate |
| May | 17 | Moderate |
| Jun | 15 | Moderate |
| Jul | 13 | Moderate |
| Aug | 12 | Good |
| Sep | 13 | Moderate |
| Oct | 14 | Moderate |
| Nov | 19 | Moderate |
| Dec | 19 | Moderate |
Where is Portoviejo?
Portoviejo sits at 1.1°S, 80.5°W, 90 m above sea level, in Ecuador. The nearest listed city is Montecristi, 23 km away.
Topography around Portoviejo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Portoviejo.
Within 3 km, the terrain around Portoviejo has significant variations in elevation — a maximum elevation change of 251 m around an average of 88 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 634 m; within 80 km, large variations in elevation — a maximum elevation change of 846 m.
The land around Portoviejo is covered by trees (45%) and artificial surfaces (45%) within 3 km, trees (61%) and grassland (29%) within 16 km, and trees (42%), water (29%) and grassland (24%) within 80 km.
Ecuador travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 43% of US
- price level, 2025
- GDP per capita
- $7,125
- 2025
- Happiness
- 6.1 / 10
- World Happiness, 2025
- Safe drinking water
- 70%
- of population, 2024
- Homicide rate
- 45.7
- per 100k, 2023
- Road deaths
- 20.1
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 466
- 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 Portoviejo (-1.0576°, -80.4514°, elevation 90 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).