São Tomé weather in July
In July, São Tomé sees average daytime highs of 24°C and overnight lows near 24°C, with 8 mm of rain across 2 wet days and about 12 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.
Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 13% of the time in July, and the air most often feels muggy.
Daylight stretches from about 12 hours at the start of July to 12 hours by month's end. Set against the rest of the year, July is São Tomé's 2nd-clearest and 1st-windiest month. For the whole year in context, see São Tomé's year-round climate.
- Daytime high
- 24°
- 12th warmest
- Overnight low
- 24°
- 1st coldest
- Rainfall
- 8 mm
- 2 wet days
- Daylight
- 12 hours
- 5:38 AM – 5:39 PM
- Cloud cover
- 66%
- 2nd clearest
- Wind
- 20 km/h
- 1st windiest
- Solar energy
- 5.06 kWh/m²
- Travel score
- 8.0
- out of 10
São Tomé is capital city of São Tomé and Príncipe.
- Density
- 3,135/km²
- people per km²
- Founded
- 1485
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in July
Day-to-day highs hold fairly steady near 24°C through the month.
A typical July day in São Tomé reaches about 24°C in the afternoon and slips back to 24°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 25°C. Set against its neighbours, July runs about 1°C cooler than June and on par with August.
| 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) | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 25 | 24 |
| 2 | 25 | 24 |
| 3 | 24 | 24 |
| 4 | 24 | 24 |
| 5 | 24 | 24 |
| 6 | 24 | 24 |
| 7 | 24 | 24 |
| 8 | 24 | 24 |
| 9 | 24 | 24 |
| 10 | 24 | 24 |
| 11 | 24 | 24 |
| 12 | 24 | 24 |
| 13 | 24 | 24 |
| 14 | 24 | 24 |
| 15 | 24 | 24 |
| 16 | 24 | 24 |
| 17 | 24 | 24 |
| 18 | 24 | 24 |
| 19 | 24 | 24 |
| 20 | 24 | 24 |
| 21 | 24 | 24 |
| 22 | 24 | 23 |
| 23 | 24 | 23 |
| 24 | 24 | 23 |
| 25 | 24 | 23 |
| 26 | 24 | 23 |
| 27 | 24 | 23 |
| 28 | 24 | 23 |
| 29 | 24 | 23 |
| 30 | 24 | 23 |
| 31 | 24 | 23 |
São Tomé weather by month
How July compares with the rest of the year at a glance. July is the 12th-warmest and 12th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 27° / 26° | 135 | 23.6 | 12 | 4.3 |
| Feb | 28° / 26° | 113 | 19.3 | 12 | 4.6 |
| Mar | 28° / 26° | 133 | 20.5 | 12 | 4.4 |
| Apr | 28° / 26° | 130 | 18.7 | 12 | 4.8 |
| May | 27° / 26° | 119 | 17 | 12 | 5.3 |
| Jun | 25° / 24° | 23 | 4 | 12 | 7.5 |
| Jul | 24° / 24° | 8 | 2 | 12 | 8.0 |
| Aug | 24° / 24° | 14 | 2.6 | 12 | 7.9 |
| Sep | 25° / 24° | 46 | 7.8 | 12 | 6.9 |
| Oct | 26° / 25° | 152 | 21.5 | 12 | 4.9 |
| Nov | 26° / 25° | 210 | 25.7 | 12 | 4.1 |
| Dec | 27° / 25° | 174 | 26.1 | 12 | 4.1 |
Cloud cover in July
The sky is clear or mostly clear about 13% of the time in July.
Beyond those clear spells, partly cloudy skies cover about 27% of July, with mostly cloudy or overcast conditions the remaining 60%.
| 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 (%) | 41 | 40 | 40 | 39 | 39 | 39 | 38 | 38 | 38 | 39 | 39 | 39 | 39 | 39 | 40 | 39 | 39 | 39 | 39 | 39 | 39 | 40 | 40 | 40 | 41 | 42 | 42 | 43 | 43 | 43 | 43 |
| Cloudier (%) | 59 | 60 | 60 | 61 | 61 | 61 | 62 | 62 | 62 | 61 | 61 | 61 | 61 | 61 | 60 | 61 | 61 | 61 | 61 | 61 | 61 | 60 | 60 | 60 | 59 | 58 | 58 | 57 | 57 | 57 | 57 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 41 | 59 |
| 2 | 40 | 60 |
| 3 | 40 | 60 |
| 4 | 39 | 61 |
| 5 | 39 | 61 |
| 6 | 39 | 61 |
| 7 | 38 | 62 |
| 8 | 38 | 62 |
| 9 | 38 | 62 |
| 10 | 39 | 61 |
| 11 | 39 | 61 |
| 12 | 39 | 61 |
| 13 | 39 | 61 |
| 14 | 39 | 61 |
| 15 | 40 | 60 |
| 16 | 39 | 61 |
| 17 | 39 | 61 |
| 18 | 39 | 61 |
| 19 | 39 | 61 |
| 20 | 39 | 61 |
| 21 | 39 | 61 |
| 22 | 40 | 60 |
| 23 | 40 | 60 |
| 24 | 40 | 60 |
| 25 | 41 | 59 |
| 26 | 42 | 58 |
| 27 | 42 | 58 |
| 28 | 43 | 57 |
| 29 | 43 | 57 |
| 30 | 43 | 57 |
| 31 | 43 | 57 |
Chance of precipitation in July
São Tomé gets around 8 mm of rain over 2 wet days in July, the driest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 7% and peaks near 10% 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Rain chance (%) | |
|---|---|
| 1 | 10 |
| 2 | 9 |
| 3 | 9 |
| 4 | 9 |
| 5 | 9 |
| 6 | 9 |
| 7 | 9 |
| 8 | 8 |
| 9 | 8 |
| 10 | 8 |
| 11 | 8 |
| 12 | 8 |
| 13 | 8 |
| 14 | 8 |
| 15 | 7 |
| 16 | 7 |
| 17 | 7 |
| 18 | 7 |
| 19 | 7 |
| 20 | 6 |
| 21 | 6 |
| 22 | 6 |
| 23 | 5 |
| 24 | 5 |
| 25 | 4 |
| 26 | 4 |
| 27 | 4 |
| 28 | 4 |
| 29 | 4 |
| 30 | 4 |
| 31 | 4 |
Humidity in July
Most of July feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, July lands in the muggy band about 63% of days. Sticky, muggy-or-worse air turns up on roughly 98% 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 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 |
| Muggy (%) | 53 | 54 | 55 | 56 | 57 | 57 | 58 | 58 | 58 | 59 | 59 | 60 | 60 | 60 | 61 | 62 | 62 | 63 | 64 | 65 | 66 | 67 | 69 | 70 | 71 | 71 | 72 | 72 | 72 | 74 | 74 |
| Oppressive (%) | 46 | 45 | 44 | 43 | 42 | 42 | 41 | 41 | 41 | 40 | 40 | 39 | 38 | 38 | 37 | 36 | 36 | 35 | 34 | 33 | 32 | 31 | 29 | 28 | 27 | 27 | 26 | 26 | 26 | 25 | 25 |
| Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|
| 1 | 1 | 53 | 46 |
| 2 | 1 | 54 | 45 |
| 3 | 1 | 55 | 44 |
| 4 | 1 | 56 | 43 |
| 5 | 1 | 57 | 42 |
| 6 | 1 | 57 | 42 |
| 7 | 1 | 58 | 41 |
| 8 | 1 | 58 | 41 |
| 9 | 1 | 58 | 41 |
| 10 | 1 | 59 | 40 |
| 11 | 1 | 59 | 40 |
| 12 | 1 | 60 | 39 |
| 13 | 2 | 60 | 38 |
| 14 | 2 | 60 | 38 |
| 15 | 2 | 61 | 37 |
| 16 | 2 | 62 | 36 |
| 17 | 2 | 62 | 36 |
| 18 | 2 | 63 | 35 |
| 19 | 2 | 64 | 34 |
| 20 | 2 | 65 | 33 |
| 21 | 2 | 66 | 32 |
| 22 | 2 | 67 | 31 |
| 23 | 2 | 69 | 29 |
| 24 | 2 | 70 | 28 |
| 25 | 2 | 71 | 27 |
| 26 | 2 | 71 | 27 |
| 27 | 2 | 72 | 26 |
| 28 | 2 | 72 | 26 |
| 29 | 2 | 72 | 26 |
| 30 | 1 | 74 | 25 |
| 31 | 1 | 74 | 25 |
Wind in July
Winds average 20 km/h in July, the windiest month of the year.
Across July, daily wind ranges from about 20 km/h on the calmest days to 20 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) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 20 | breezy |
| 2 | 20 | breezy |
| 3 | 20 | breezy |
| 4 | 20 | breezy |
| 5 | 20 | breezy |
| 6 | 20 | breezy |
| 7 | 20 | breezy |
| 8 | 20 | breezy |
| 9 | 20 | breezy |
| 10 | 20 | breezy |
| 11 | 20 | breezy |
| 12 | 20 | breezy |
| 13 | 20 | breezy |
| 14 | 20 | breezy |
| 15 | 20 | breezy |
| 16 | 20 | breezy |
| 17 | 20 | breezy |
| 18 | 20 | breezy |
| 19 | 20 | breezy |
| 20 | 20 | breezy |
| 21 | 20 | breezy |
| 22 | 20 | breezy |
| 23 | 20 | breezy |
| 24 | 20 | breezy |
| 25 | 20 | breezy |
| 26 | 20 | breezy |
| 27 | 20 | breezy |
| 28 | 20 | breezy |
| 29 | 20 | breezy |
| 30 | 20 | breezy |
| 31 | 20 | breezy |
Sunrise & sunset in July
Daylight runs from about 12 hours at the start of July to 12 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 0 minutes over July. Sunrise moves from 5:36 AM to 5:39 AM, and sunset from 5:37 PM to 5:40 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) | 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 | 12.0 |
| Sunrise (AM) | 5:36 | 5:36 | 5:36 | 5:36 | 5:37 | 5:37 | 5:37 | 5:37 | 5:37 | 5:37 | 5:38 | 5:38 | 5:38 | 5:38 | 5:38 | 5:38 | 5:38 | 5:38 | 5:38 | 5:39 | 5:39 | 5:39 | 5:39 | 5:39 | 5:39 | 5:39 | 5:39 | 5:39 | 5:39 | 5:39 | 5:39 |
| Sunset (PM) | 5:37 | 5:37 | 5:37 | 5:38 | 5:38 | 5:38 | 5:38 | 5:38 | 5:38 | 5:39 | 5:39 | 5:39 | 5:39 | 5:39 | 5:39 | 5:39 | 5:39 | 5:39 | 5:39 | 5:40 | 5:40 | 5:40 | 5:40 | 5:40 | 5:40 | 5:40 | 5:40 | 5:40 | 5:40 | 5:40 | 5:40 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.0 | 5:36 | 5:37 |
| 2 | 12.0 | 5:36 | 5:37 |
| 3 | 12.0 | 5:36 | 5:37 |
| 4 | 12.0 | 5:36 | 5:38 |
| 5 | 12.0 | 5:37 | 5:38 |
| 6 | 12.0 | 5:37 | 5:38 |
| 7 | 12.0 | 5:37 | 5:38 |
| 8 | 12.0 | 5:37 | 5:38 |
| 9 | 12.0 | 5:37 | 5:38 |
| 10 | 12.0 | 5:37 | 5:39 |
| 11 | 12.0 | 5:38 | 5:39 |
| 12 | 12.0 | 5:38 | 5:39 |
| 13 | 12.0 | 5:38 | 5:39 |
| 14 | 12.0 | 5:38 | 5:39 |
| 15 | 12.0 | 5:38 | 5:39 |
| 16 | 12.0 | 5:38 | 5:39 |
| 17 | 12.0 | 5:38 | 5:39 |
| 18 | 12.0 | 5:38 | 5:39 |
| 19 | 12.0 | 5:38 | 5:39 |
| 20 | 12.0 | 5:39 | 5:40 |
| 21 | 12.0 | 5:39 | 5:40 |
| 22 | 12.0 | 5:39 | 5:40 |
| 23 | 12.0 | 5:39 | 5:40 |
| 24 | 12.0 | 5:39 | 5:40 |
| 25 | 12.0 | 5:39 | 5:40 |
| 26 | 12.0 | 5:39 | 5:40 |
| 27 | 12.0 | 5:39 | 5:40 |
| 28 | 12.0 | 5:39 | 5:40 |
| 29 | 12.0 | 5:39 | 5:40 |
| 30 | 12.0 | 5:39 | 5:40 |
| 31 | 12.0 | 5:39 | 5:40 |
Solar energy in July
Average shortwave solar energy reaching the ground each day in July, about 5.06 kWh/m².
For context, solar energy here swings from a low near 4.89 kWh/m² to a high of 5.48 kWh/m² in March across the year — July's 5.06 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 |
| 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 | 5.0 | Bright |
| 2 | 5.0 | Bright |
| 3 | 5.0 | Bright |
| 4 | 5.0 | Bright |
| 5 | 5.0 | Bright |
| 6 | 5.0 | Bright |
| 7 | 5.0 | Bright |
| 8 | 5.0 | Bright |
| 9 | 5.0 | Bright |
| 10 | 5.0 | Bright |
| 11 | 5.0 | Bright |
| 12 | 5.0 | Bright |
| 13 | 5.0 | Bright |
| 14 | 5.1 | Bright |
| 15 | 5.1 | Bright |
| 16 | 5.1 | Bright |
| 17 | 5.1 | Bright |
| 18 | 5.1 | Bright |
| 19 | 5.1 | Bright |
| 20 | 5.1 | Bright |
| 21 | 5.1 | Bright |
| 22 | 5.1 | Bright |
| 23 | 5.1 | Bright |
| 24 | 5.1 | Bright |
| 25 | 5.2 | Bright |
| 26 | 5.2 | Bright |
| 27 | 5.2 | Bright |
| 28 | 5.2 | Bright |
| 29 | 5.2 | Bright |
| 30 | 5.2 | Bright |
| 31 | 5.2 | Bright |
Hazard calendar for São Tomé
None of São Tomé's seasonal hazards are active in July. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
São Tomé's rainy season runs October–May, when most of the year's rain falls.
Is July a good time to visit São Tomé?
Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
July is one of the better times to visit São Tomé for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for São Tomé in July
From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In July, São Tomé sees daytime highs around 24°C and nights near 24°C. Worth packing: light clothes, sun protection and a windbreaker.
Sea temperature near São Tomé in July
The nearest coast averages about 26°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in March at about 29°C and coldest in August near 26°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) | 29 | 29 | 29 | 29 | 28 | 27 | 26 | 26 | 26 | 27 | 28 | 28 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm | Warm | Warm | Warm | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 29 | Tropical |
| May | 28 | Tropical |
| Jun | 27 | Warm |
| Jul | 26 | Warm |
| Aug | 26 | Warm |
| Sep | 26 | Warm |
| Oct | 27 | Warm |
| Nov | 28 | Warm |
| Dec | 28 | Tropical |
UV index in São Tomé in July
Clear-sky midday UV in July 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 São Tomé peaks around March 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 12 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) | 11 | 12 | 14 | 13 | 11 | 9 | 9 | 8 | 12 | 13 | 12 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 12 | Extreme |
| Mar | 14 | Extreme |
| Apr | 13 | Extreme |
| May | 11 | Extreme |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 12 | Extreme |
| Dec | 11 | Extreme |
Air quality in São Tomé in July
Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.
Air quality in São Tomé is worst in February — around 24 µg/m³ PM2.5 (moderate), about 4.6× the cleanest month (October, 5 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) | 22 | 24 | 15 | 11 | 12 | 16 | 17 | 13 | 8 | 5 | 8 | 15 |
| Level | Moderate | Moderate | Moderate | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 22 | Moderate |
| Feb | 24 | Moderate |
| Mar | 15 | Moderate |
| Apr | 11 | Good |
| May | 12 | Moderate |
| Jun | 16 | Moderate |
| Jul | 17 | Moderate |
| Aug | 13 | Moderate |
| Sep | 8 | Good |
| Oct | 5 | Good |
| Nov | 8 | Good |
| Dec | 15 | Moderate |
Where is São Tomé?
São Tomé sits at 0.3°N, 6.7°E, 140 m above sea level, in Sao Tome and Principe. The nearest listed city is Port-Gentil, 257 km away.
Topography around São Tomé
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Tomé.
Within 3 km, the terrain around São Tomé has only modest variations in elevation — a maximum elevation change of 111 m around an average of 23 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,396 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,938 m.
The land around São Tomé is covered by water (43%), trees (31%) and artificial surfaces (24%) within 3 km, water (60%) and trees (36%) within 16 km, and water (90%) within 80 km.
Sao Tome and Principe travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type C / F
- 220 V · 50 Hz
- Prices
- ≈ 61% of US
- price level, 2025
- GDP per capita
- $4,084
- 2025
- Safe drinking water
- 37%
- of population, 2024
- Homicide rate
- 3.2
- per 100k, 2011
- Road deaths
- 27.9
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- 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 São Tomé (0.3376°, 6.7299°, elevation 140 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).