Porto Velho weather in May
In May, Porto Velho sees average daytime highs of 30°C and overnight lows near 23°C, with 133 mm of rain across 21.5 wet days and about 11.6 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.
Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 10% of the time in May, and the air most often feels miserable.
Daylight stretches from about 11 h 42 min at the start of May to 11 h 30 min by month's end. Set against the rest of the year, May is Porto Velho's 5th-clearest and 9th-windiest month. For the whole year in context, see Porto Velho's year-round climate.
- Daytime high
- 30°
- 8th warmest
- Overnight low
- 23°
- 4th coldest
- Rainfall
- 133 mm
- 21.5 wet days
- Daylight
- 11 h 36 min
- 6:24 AM – 6:00 PM
- Cloud cover
- 73%
- 5th clearest
- Wind
- 5 km/h
- 9th windiest
- Solar energy
- 4.21 kWh/m²
- Travel score
- 3.6
- out of 10
Temperature in May
Day-to-day highs hold fairly steady near 30°C through the month.
A typical May day in Porto Velho reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, May runs on par with April and on par with June.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Avg low (°C) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 30 | 23 |
| 2 | 30 | 23 |
| 3 | 30 | 23 |
| 4 | 30 | 23 |
| 5 | 30 | 23 |
| 6 | 30 | 23 |
| 7 | 30 | 23 |
| 8 | 30 | 23 |
| 9 | 30 | 23 |
| 10 | 30 | 23 |
| 11 | 30 | 23 |
| 12 | 30 | 23 |
| 13 | 30 | 23 |
| 14 | 30 | 23 |
| 15 | 30 | 23 |
| 16 | 30 | 23 |
| 17 | 30 | 23 |
| 18 | 30 | 23 |
| 19 | 30 | 23 |
| 20 | 30 | 23 |
| 21 | 30 | 23 |
| 22 | 30 | 23 |
| 23 | 30 | 23 |
| 24 | 30 | 23 |
| 25 | 30 | 23 |
| 26 | 30 | 23 |
| 27 | 30 | 23 |
| 28 | 30 | 23 |
| 29 | 30 | 23 |
| 30 | 30 | 23 |
| 31 | 30 | 23 |
How May really feels in Porto Velho
Once humidity and wind are folded in, May averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Porto Velho weather by month
How May compares with the rest of the year at a glance. May is the 8th-warmest and 8th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 24° | 303 | 28.6 | 12.5 | 2.8 |
| Feb | 30° / 24° | 314 | 26.7 | 12.3 | 2.7 |
| Mar | 30° / 24° | 328 | 29.5 | 12.1 | 2.7 |
| Apr | 30° / 24° | 228 | 26.4 | 11.8 | 2.9 |
| May | 30° / 23° | 133 | 21.5 | 11.6 | 3.6 |
| Jun | 31° / 23° | 44 | 9.5 | 11.5 | 4.9 |
| Jul | 31° / 22° | 22 | 4.7 | 11.5 | 5.1 |
| Aug | 33° / 23° | 42 | 7.6 | 11.7 | 3.9 |
| Sep | 33° / 24° | 103 | 16.7 | 11.9 | 3.1 |
| Oct | 32° / 24° | 178 | 23.3 | 12.2 | 2.7 |
| Nov | 31° / 24° | 246 | 26.3 | 12.4 | 2.7 |
| Dec | 30° / 24° | 298 | 28.7 | 12.5 | 2.7 |
Cloud cover in May
The sky is clear or mostly clear about 10% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 74%. 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 14 | 15 | 16 | 16 | 16 | 17 | 17 | 17 | 18 | 19 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 32 | 32 | 34 | 36 | 37 | 39 | 41 | 43 | 45 |
| Cloudier (%) | 86 | 85 | 84 | 84 | 84 | 83 | 83 | 83 | 82 | 81 | 81 | 80 | 79 | 78 | 77 | 76 | 75 | 74 | 73 | 72 | 71 | 70 | 68 | 68 | 66 | 64 | 63 | 61 | 59 | 57 | 55 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 14 | 86 |
| 2 | 15 | 85 |
| 3 | 16 | 84 |
| 4 | 16 | 84 |
| 5 | 16 | 84 |
| 6 | 17 | 83 |
| 7 | 17 | 83 |
| 8 | 17 | 83 |
| 9 | 18 | 82 |
| 10 | 19 | 81 |
| 11 | 19 | 81 |
| 12 | 20 | 80 |
| 13 | 21 | 79 |
| 14 | 22 | 78 |
| 15 | 23 | 77 |
| 16 | 24 | 76 |
| 17 | 25 | 75 |
| 18 | 26 | 74 |
| 19 | 27 | 73 |
| 20 | 28 | 72 |
| 21 | 29 | 71 |
| 22 | 30 | 70 |
| 23 | 32 | 68 |
| 24 | 32 | 68 |
| 25 | 34 | 66 |
| 26 | 36 | 64 |
| 27 | 37 | 63 |
| 28 | 39 | 61 |
| 29 | 41 | 59 |
| 30 | 43 | 57 |
| 31 | 45 | 55 |
Chance of precipitation in May
Porto Velho gets around 133 mm of rain over 21.5 wet days in May. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 69% and peaks near 81% on the wettest days. The odds ease 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 81 | 81 | 80 | 79 | 78 | 78 | 77 | 76 | 75 | 74 | 74 | 73 | 72 | 72 | 71 | 70 | 70 | 69 | 68 | 67 | 66 | 65 | 64 | 62 | 61 | 60 | 59 | 58 | 56 | 55 | 54 |
| Rain chance (%) | |
|---|---|
| 1 | 81 |
| 2 | 81 |
| 3 | 80 |
| 4 | 79 |
| 5 | 78 |
| 6 | 78 |
| 7 | 77 |
| 8 | 76 |
| 9 | 75 |
| 10 | 74 |
| 11 | 74 |
| 12 | 73 |
| 13 | 72 |
| 14 | 72 |
| 15 | 71 |
| 16 | 70 |
| 17 | 70 |
| 18 | 69 |
| 19 | 68 |
| 20 | 67 |
| 21 | 66 |
| 22 | 65 |
| 23 | 64 |
| 24 | 62 |
| 25 | 61 |
| 26 | 60 |
| 27 | 59 |
| 28 | 58 |
| 29 | 56 |
| 30 | 55 |
| 31 | 54 |
Humidity in May
Most of May feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the miserable band about 63% of days. Sticky, muggy-or-worse air turns up on roughly 99% 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Muggy (%) | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 |
| Oppressive (%) | 22 | 22 | 23 | 24 | 24 | 25 | 26 | 26 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 30 | 31 | 32 | 33 | 34 | 36 | 37 | 38 | 40 | 41 | 42 | 44 | 45 | 46 | 48 |
| Miserable (%) | 73 | 73 | 72 | 70 | 70 | 69 | 68 | 68 | 67 | 67 | 66 | 66 | 66 | 66 | 66 | 66 | 65 | 64 | 63 | 62 | 61 | 59 | 58 | 57 | 55 | 54 | 53 | 50 | 49 | 48 | 47 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 1 | 4 | 22 | 73 |
| 2 | 1 | 4 | 22 | 73 |
| 3 | 1 | 4 | 23 | 72 |
| 4 | 1 | 5 | 24 | 70 |
| 5 | 1 | 5 | 24 | 70 |
| 6 | 1 | 5 | 25 | 69 |
| 7 | 1 | 5 | 26 | 68 |
| 8 | 1 | 5 | 26 | 68 |
| 9 | 1 | 5 | 27 | 67 |
| 10 | 1 | 5 | 27 | 67 |
| 11 | 1 | 5 | 28 | 66 |
| 12 | 1 | 5 | 28 | 66 |
| 13 | 1 | 5 | 28 | 66 |
| 14 | 1 | 5 | 28 | 66 |
| 15 | 1 | 4 | 29 | 66 |
| 16 | 1 | 4 | 29 | 66 |
| 17 | 1 | 4 | 30 | 65 |
| 18 | 1 | 4 | 31 | 64 |
| 19 | 1 | 4 | 32 | 63 |
| 20 | 1 | 4 | 33 | 62 |
| 21 | 1 | 4 | 34 | 61 |
| 22 | 1 | 4 | 36 | 59 |
| 23 | 1 | 4 | 37 | 58 |
| 24 | 1 | 4 | 38 | 57 |
| 25 | 1 | 4 | 40 | 55 |
| 26 | 1 | 4 | 41 | 54 |
| 27 | 1 | 4 | 42 | 53 |
| 28 | 1 | 5 | 44 | 50 |
| 29 | 1 | 5 | 45 | 49 |
| 30 | 1 | 5 | 46 | 48 |
| 31 | 1 | 5 | 48 | 47 |
Wind in May
Winds average 5 km/h in May.
Across May, daily wind ranges from about 5 km/h on the calmest days to 5 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| 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 | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 5 | calm |
| 2 | 5 | calm |
| 3 | 5 | calm |
| 4 | 5 | calm |
| 5 | 5 | calm |
| 6 | 5 | calm |
| 7 | 5 | calm |
| 8 | 5 | calm |
| 9 | 5 | calm |
| 10 | 5 | calm |
| 11 | 5 | calm |
| 12 | 5 | calm |
| 13 | 5 | calm |
| 14 | 5 | calm |
| 15 | 5 | calm |
| 16 | 5 | calm |
| 17 | 5 | calm |
| 18 | 5 | calm |
| 19 | 5 | calm |
| 20 | 5 | calm |
| 21 | 5 | calm |
| 22 | 5 | calm |
| 23 | 5 | calm |
| 24 | 5 | calm |
| 25 | 5 | calm |
| 26 | 5 | calm |
| 27 | 5 | calm |
| 28 | 5 | calm |
| 29 | 5 | calm |
| 30 | 5 | calm |
| 31 | 5 | calm |
Sunrise & sunset in May
Daylight runs from about 11 h 42 min at the start of May to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 12 minutes over May. Sunrise moves from 6:22 AM to 6:27 AM, and sunset from 6:04 PM to 5:59 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 |
| Sunrise (AM) | 6:22 | 6:22 | 6:22 | 6:22 | 6:22 | 6:22 | 6:23 | 6:23 | 6:23 | 6:23 | 6:23 | 6:23 | 6:23 | 6:23 | 6:24 | 6:24 | 6:24 | 6:24 | 6:24 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:26 | 6:26 | 6:26 | 6:26 | 6:27 | 6:27 | 6:27 |
| Sunset (PM) | 6:04 | 6:03 | 6:03 | 6:03 | 6:02 | 6:02 | 6:02 | 6:02 | 6:01 | 6:01 | 6:01 | 6:01 | 6:00 | 6:00 | 6:00 | 6:00 | 6:00 | 6:00 | 5:59 | 5:59 | 5:59 | 5:59 | 5:59 | 5:59 | 5:59 | 5:59 | 5:59 | 5:59 | 5:59 | 5:59 | 5:59 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.7 | 6:22 | 6:04 |
| 2 | 11.7 | 6:22 | 6:03 |
| 3 | 11.7 | 6:22 | 6:03 |
| 4 | 11.7 | 6:22 | 6:03 |
| 5 | 11.7 | 6:22 | 6:02 |
| 6 | 11.7 | 6:22 | 6:02 |
| 7 | 11.7 | 6:23 | 6:02 |
| 8 | 11.6 | 6:23 | 6:02 |
| 9 | 11.6 | 6:23 | 6:01 |
| 10 | 11.6 | 6:23 | 6:01 |
| 11 | 11.6 | 6:23 | 6:01 |
| 12 | 11.6 | 6:23 | 6:01 |
| 13 | 11.6 | 6:23 | 6:00 |
| 14 | 11.6 | 6:23 | 6:00 |
| 15 | 11.6 | 6:24 | 6:00 |
| 16 | 11.6 | 6:24 | 6:00 |
| 17 | 11.6 | 6:24 | 6:00 |
| 18 | 11.6 | 6:24 | 6:00 |
| 19 | 11.6 | 6:24 | 5:59 |
| 20 | 11.6 | 6:25 | 5:59 |
| 21 | 11.6 | 6:25 | 5:59 |
| 22 | 11.6 | 6:25 | 5:59 |
| 23 | 11.6 | 6:25 | 5:59 |
| 24 | 11.6 | 6:25 | 5:59 |
| 25 | 11.6 | 6:26 | 5:59 |
| 26 | 11.6 | 6:26 | 5:59 |
| 27 | 11.5 | 6:26 | 5:59 |
| 28 | 11.5 | 6:26 | 5:59 |
| 29 | 11.5 | 6:27 | 5:59 |
| 30 | 11.5 | 6:27 | 5:59 |
| 31 | 11.5 | 6:27 | 5:59 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 4.21 kWh/m² — the year's lowest.
For context, solar energy here swings from a low near 4.21 kWh/m² to a high of 5.52 kWh/m² in September across the year — May's 4.21 kWh/m² sits near the bottom.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 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 | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.2 | Bright |
| 2 | 4.2 | Bright |
| 3 | 4.2 | Bright |
| 4 | 4.2 | Bright |
| 5 | 4.2 | Bright |
| 6 | 4.2 | Bright |
| 7 | 4.2 | Bright |
| 8 | 4.2 | Bright |
| 9 | 4.2 | Bright |
| 10 | 4.2 | Bright |
| 11 | 4.2 | Bright |
| 12 | 4.2 | Bright |
| 13 | 4.2 | Bright |
| 14 | 4.2 | Bright |
| 15 | 4.2 | Bright |
| 16 | 4.2 | Bright |
| 17 | 4.2 | Bright |
| 18 | 4.2 | Bright |
| 19 | 4.2 | Bright |
| 20 | 4.2 | Bright |
| 21 | 4.2 | Bright |
| 22 | 4.2 | Bright |
| 23 | 4.2 | Bright |
| 24 | 4.2 | Bright |
| 25 | 4.2 | Bright |
| 26 | 4.2 | Bright |
| 27 | 4.2 | Bright |
| 28 | 4.2 | Bright |
| 29 | 4.2 | Bright |
| 30 | 4.2 | Bright |
| 31 | 4.3 | Bright |
Hazard calendar for Porto Velho
None of Porto Velho's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Porto Velho's rainy season runs October–April, when most of the year's rain falls.
Is May a good time to visit Porto Velho?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is a weaker month for outdoor sightseeing in Porto Velho.
What to pack for Porto Velho in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Porto Velho sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. About 22 days see rain.
UV index in Porto Velho in May
Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Porto Velho peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 11 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) | 15 | 15 | 15 | 13 | 10 | 9 | 9 | 5 | 4 | 11 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High | Moderate | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 15 | Extreme |
| Apr | 13 | Extreme |
| May | 10 | Extreme |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 5 | High |
| Sep | 4 | Moderate |
| Oct | 11 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Air quality in Porto Velho in May
Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.
Air quality in Porto Velho is worst in August — around 101 µg/m³ PM2.5 (unhealthy), about 9.5× the cleanest month (May, 11 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) | 13 | 13 | 15 | 12 | 11 | 12 | 34 | 101 | 100 | 36 | 20 | 15 |
| Level | Moderate | Moderate | Moderate | Good | Good | Good | Moderate | Unhealthy | Unhealthy | Poor | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 13 | Moderate |
| Feb | 13 | Moderate |
| Mar | 15 | Moderate |
| Apr | 12 | Good |
| May | 11 | Good |
| Jun | 12 | Good |
| Jul | 34 | Moderate |
| Aug | 101 | Unhealthy |
| Sep | 100 | Unhealthy |
| Oct | 36 | Poor |
| Nov | 20 | Moderate |
| Dec | 15 | Moderate |
Where is Porto Velho?
Porto Velho sits at 8.8°S, 63.9°W, 90 m above sea level, in Brazil. The nearest listed city is Candeias do Jamari, 23 km away.
Topography around Porto Velho
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Porto Velho.
Within 3 km, the terrain around Porto Velho has only modest variations in elevation — a maximum elevation change of 47 m around an average of 76 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 130 m; within 80 km, significant variations in elevation — a maximum elevation change of 342 m.
The land around Porto Velho is covered by artificial surfaces (54%) and trees (23%) within 3 km, trees (54%) and grassland (29%) within 16 km, and trees (75%) and grassland (20%) within 80 km.
Brazil travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / N
- 127 / 220 V · 60 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $10,713
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 89%
- of population, 2024
- Homicide rate
- 19.3
- per 100k, 2023
- Road deaths
- 16
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 482
- 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 Porto Velho (-8.7619°, -63.9039°, 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. 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).