San Mateo weather in September
In September, San Mateo sees average daytime highs of 29°C and overnight lows near 20°C, with 115 mm of rain across 19.2 wet days and about 12.1 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.
Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 7% of the time in September, and the air most often feels muggy.
Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is San Mateo's 8th-clearest and 5th-windiest month. For the whole year in context, see San Mateo's year-round climate.
- Daytime high
- 29°
- 1st warmest
- Overnight low
- 20°
- 10th coldest
- Rainfall
- 115 mm
- 19.2 wet days
- Daylight
- 12 h 06 min
- 5:52 AM – 5:56 PM
- Cloud cover
- 77%
- 8th clearest
- Wind
- 5 km/h
- 5th windiest
- Solar energy
- 5.46 kWh/m²
- Travel score
- 4.1
- out of 10
San Mateo is place in Aragua, Venezuela.
- Founded
- 1620
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Day-to-day highs hold fairly steady near 29°C through the month.
A typical September day in San Mateo reaches about 29°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 27°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) | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Avg low (°C) | 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 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 29 | 20 |
| 2 | 29 | 20 |
| 3 | 29 | 20 |
| 4 | 29 | 20 |
| 5 | 29 | 20 |
| 6 | 29 | 20 |
| 7 | 29 | 20 |
| 8 | 29 | 20 |
| 9 | 29 | 20 |
| 10 | 29 | 20 |
| 11 | 29 | 20 |
| 12 | 29 | 20 |
| 13 | 29 | 20 |
| 14 | 29 | 20 |
| 15 | 29 | 20 |
| 16 | 29 | 20 |
| 17 | 29 | 20 |
| 18 | 29 | 20 |
| 19 | 29 | 20 |
| 20 | 29 | 20 |
| 21 | 29 | 20 |
| 22 | 29 | 20 |
| 23 | 29 | 20 |
| 24 | 29 | 20 |
| 25 | 29 | 20 |
| 26 | 29 | 20 |
| 27 | 29 | 20 |
| 28 | 29 | 20 |
| 29 | 29 | 20 |
| 30 | 29 | 20 |
San Mateo weather by month
How September compares with the rest of the year at a glance. September is the 1st-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 | 27° / 18° | 75 | 19.6 | 11.5 | 5.2 |
| Feb | 28° / 19° | 64 | 15.9 | 11.7 | 5.3 |
| Mar | 28° / 19° | 104 | 18.1 | 11.9 | 4.8 |
| Apr | 28° / 20° | 171 | 22.4 | 12.2 | 3.9 |
| May | 29° / 21° | 161 | 21.1 | 12.5 | 3.9 |
| Jun | 28° / 20° | 116 | 20.7 | 12.6 | 4.1 |
| Jul | 28° / 20° | 133 | 22.8 | 12.5 | 4.3 |
| Aug | 28° / 20° | 127 | 21.6 | 12.3 | 4.2 |
| Sep | 29° / 20° | 115 | 19.2 | 12.1 | 4.1 |
| Oct | 29° / 20° | 140 | 21.4 | 11.8 | 4.0 |
| Nov | 28° / 20° | 167 | 23.7 | 11.5 | 4.1 |
| Dec | 27° / 19° | 96 | 20.6 | 11.4 | 4.9 |
Cloud cover in September
The sky is clear or mostly clear about 7% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 79%.
| 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 (%) | 26 | 27 | 26 | 26 | 26 | 26 | 25 | 25 | 24 | 24 | 23 | 23 | 22 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Cloudier (%) | 74 | 73 | 74 | 74 | 74 | 74 | 75 | 75 | 76 | 76 | 77 | 77 | 78 | 79 | 79 | 79 | 79 | 80 | 80 | 80 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 26 | 74 |
| 2 | 27 | 73 |
| 3 | 26 | 74 |
| 4 | 26 | 74 |
| 5 | 26 | 74 |
| 6 | 26 | 74 |
| 7 | 25 | 75 |
| 8 | 25 | 75 |
| 9 | 24 | 76 |
| 10 | 24 | 76 |
| 11 | 23 | 77 |
| 12 | 23 | 77 |
| 13 | 22 | 78 |
| 14 | 21 | 79 |
| 15 | 21 | 79 |
| 16 | 21 | 79 |
| 17 | 21 | 79 |
| 18 | 20 | 80 |
| 19 | 20 | 80 |
| 20 | 20 | 80 |
| 21 | 18 | 82 |
| 22 | 18 | 82 |
| 23 | 18 | 82 |
| 24 | 18 | 82 |
| 25 | 18 | 82 |
| 26 | 18 | 82 |
| 27 | 18 | 82 |
| 28 | 18 | 82 |
| 29 | 18 | 82 |
| 30 | 18 | 82 |
Chance of precipitation in September
San Mateo gets around 115 mm of rain over 19.2 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 64% and peaks near 66% 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 (%) | 66 | 65 | 64 | 64 | 64 | 64 | 64 | 63 | 63 | 64 | 64 | 64 | 64 | 64 | 64 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 64 | 64 | 64 | 63 | 63 | 63 | 63 | 63 |
| Rain chance (%) | |
|---|---|
| 1 | 66 |
| 2 | 65 |
| 3 | 64 |
| 4 | 64 |
| 5 | 64 |
| 6 | 64 |
| 7 | 64 |
| 8 | 63 |
| 9 | 63 |
| 10 | 64 |
| 11 | 64 |
| 12 | 64 |
| 13 | 64 |
| 14 | 64 |
| 15 | 64 |
| 16 | 65 |
| 17 | 65 |
| 18 | 65 |
| 19 | 65 |
| 20 | 65 |
| 21 | 65 |
| 22 | 65 |
| 23 | 64 |
| 24 | 64 |
| 25 | 64 |
| 26 | 63 |
| 27 | 63 |
| 28 | 63 |
| 29 | 63 |
| 30 | 63 |
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 88% of days. Sticky, muggy-or-worse air turns up on roughly 95% 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 (%) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 |
| Muggy (%) | 89 | 89 | 89 | 89 | 89 | 89 | 89 | 89 | 89 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 89 | 89 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 87 | 87 | 87 |
| Oppressive (%) | 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 |
| Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|
| 1 | 5 | 89 | 6 |
| 2 | 5 | 89 | 6 |
| 3 | 5 | 89 | 6 |
| 4 | 5 | 89 | 6 |
| 5 | 5 | 89 | 6 |
| 6 | 5 | 89 | 6 |
| 7 | 5 | 89 | 6 |
| 8 | 5 | 89 | 6 |
| 9 | 5 | 89 | 6 |
| 10 | 5 | 88 | 7 |
| 11 | 5 | 88 | 7 |
| 12 | 5 | 88 | 7 |
| 13 | 5 | 88 | 7 |
| 14 | 5 | 88 | 7 |
| 15 | 5 | 88 | 7 |
| 16 | 5 | 88 | 7 |
| 17 | 5 | 88 | 7 |
| 18 | 5 | 88 | 7 |
| 19 | 4 | 89 | 7 |
| 20 | 4 | 89 | 7 |
| 21 | 5 | 88 | 7 |
| 22 | 5 | 88 | 7 |
| 23 | 5 | 88 | 7 |
| 24 | 5 | 88 | 7 |
| 25 | 5 | 88 | 7 |
| 26 | 5 | 88 | 7 |
| 27 | 5 | 88 | 7 |
| 28 | 6 | 87 | 7 |
| 29 | 6 | 87 | 7 |
| 30 | 6 | 87 | 7 |
Wind in September
Winds average 5 km/h in September.
Across September, daily wind ranges from about 4 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 4 |
| 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 | 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 | 4 | calm |
Sunrise & sunset in September
Daylight runs from about 12 h 12 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 18 minutes over September. Sunrise moves from 5:53 AM to 5:51 AM, and sunset from 6:05 PM to 5:47 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) | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.9 |
| Sunrise (AM) | 5:53 | 5:53 | 5:53 | 5:53 | 5:53 | 5:53 | 5:53 | 5:53 | 5:53 | 5:53 | 5:53 | 5:53 | 5:53 | 5:53 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:51 | 5:51 | 5:51 |
| Sunset (PM) | 6:05 | 6:05 | 6:04 | 6:03 | 6:03 | 6:02 | 6:02 | 6:01 | 6:00 | 6:00 | 5:59 | 5:58 | 5:58 | 5:57 | 5:56 | 5:56 | 5:55 | 5:54 | 5:54 | 5:53 | 5:52 | 5:52 | 5:51 | 5:50 | 5:50 | 5:49 | 5:48 | 5:48 | 5:47 | 5:47 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.2 | 5:53 | 6:05 |
| 2 | 12.2 | 5:53 | 6:05 |
| 3 | 12.2 | 5:53 | 6:04 |
| 4 | 12.2 | 5:53 | 6:03 |
| 5 | 12.2 | 5:53 | 6:03 |
| 6 | 12.2 | 5:53 | 6:02 |
| 7 | 12.1 | 5:53 | 6:02 |
| 8 | 12.1 | 5:53 | 6:01 |
| 9 | 12.1 | 5:53 | 6:00 |
| 10 | 12.1 | 5:53 | 6:00 |
| 11 | 12.1 | 5:53 | 5:59 |
| 12 | 12.1 | 5:53 | 5:58 |
| 13 | 12.1 | 5:53 | 5:58 |
| 14 | 12.1 | 5:53 | 5:57 |
| 15 | 12.1 | 5:52 | 5:56 |
| 16 | 12.1 | 5:52 | 5:56 |
| 17 | 12.0 | 5:52 | 5:55 |
| 18 | 12.0 | 5:52 | 5:54 |
| 19 | 12.0 | 5:52 | 5:54 |
| 20 | 12.0 | 5:52 | 5:53 |
| 21 | 12.0 | 5:52 | 5:52 |
| 22 | 12.0 | 5:52 | 5:52 |
| 23 | 12.0 | 5:52 | 5:51 |
| 24 | 12.0 | 5:52 | 5:50 |
| 25 | 12.0 | 5:52 | 5:50 |
| 26 | 12.0 | 5:52 | 5:49 |
| 27 | 11.9 | 5:52 | 5:48 |
| 28 | 11.9 | 5:51 | 5:48 |
| 29 | 11.9 | 5:51 | 5:47 |
| 30 | 11.9 | 5:51 | 5:47 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 5.46 kWh/m².
For context, solar energy here swings from a low near 4.65 kWh/m² to a high of 5.78 kWh/m² in March across the year — September's 5.46 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) | 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 | 5.5 | 5.5 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 |
| 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 | 5.5 | Bright |
| 2 | 5.5 | Bright |
| 3 | 5.5 | Bright |
| 4 | 5.5 | Bright |
| 5 | 5.5 | Bright |
| 6 | 5.5 | Bright |
| 7 | 5.5 | Bright |
| 8 | 5.5 | Bright |
| 9 | 5.5 | Bright |
| 10 | 5.5 | Bright |
| 11 | 5.5 | Bright |
| 12 | 5.5 | Bright |
| 13 | 5.5 | Bright |
| 14 | 5.5 | Bright |
| 15 | 5.5 | Bright |
| 16 | 5.5 | Bright |
| 17 | 5.5 | Bright |
| 18 | 5.4 | Bright |
| 19 | 5.4 | Bright |
| 20 | 5.4 | Bright |
| 21 | 5.4 | Bright |
| 22 | 5.4 | Bright |
| 23 | 5.4 | Bright |
| 24 | 5.4 | Bright |
| 25 | 5.4 | Bright |
| 26 | 5.4 | Bright |
| 27 | 5.4 | Bright |
| 28 | 5.4 | Bright |
| 29 | 5.4 | Bright |
| 30 | 5.4 | Bright |
Is September a good time to visit San Mateo?
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 San Mateo for sightseeing.
What to pack for San Mateo in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, San Mateo sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.
Sea temperature near San Mateo in September
The nearest coast averages about 29°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 46 km away) is warmest in September at about 29°C and coldest in February 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) | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 28 | 29 | 29 | 28 | 27 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 26 | Warm |
| Feb | 26 | Warm |
| Mar | 26 | Warm |
| Apr | 26 | Warm |
| May | 27 | Warm |
| Jun | 27 | Warm |
| Jul | 27 | Warm |
| Aug | 28 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 27 | Warm |
UV index in San Mateo in September
Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in San Mateo peaks around March 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 10 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 | 13 | 14 | 13 | 12 | 12 | 12 | 12 | 13 | 12 | 9 | 9 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 13 | Extreme |
| Mar | 14 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 12 | Extreme |
| Sep | 13 | Extreme |
| Oct | 12 | Extreme |
| Nov | 9 | Very high |
| Dec | 9 | Very high |
Air quality in San Mateo 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 San Mateo is worst in June — around 32 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 13 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 | 16 | 19 | 26 | 31 | 32 | 27 | 24 | 21 | 20 | 16 | 13 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 13 | Moderate |
| Feb | 16 | Moderate |
| Mar | 19 | Moderate |
| Apr | 26 | Moderate |
| May | 31 | Moderate |
| Jun | 32 | Moderate |
| Jul | 27 | Moderate |
| Aug | 24 | Moderate |
| Sep | 21 | Moderate |
| Oct | 20 | Moderate |
| Nov | 16 | Moderate |
| Dec | 13 | Moderate |
Where is San Mateo?
San Mateo sits at 10.2°N, 67.4°W, 497 m above sea level, in Venezuela. The nearest listed city is Cagua, 5.0 km away.
Topography around San Mateo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Mateo.
Within 3 km, the terrain around San Mateo has significant variations in elevation — a maximum elevation change of 560 m around an average of 580 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,633 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,728 m.
The land around San Mateo is covered by trees (33%) and shrubs (26%) within 3 km, trees (34%), grassland (27%) and shrubs (21%) within 16 km, and trees (45%) and water (23%) within 80 km.
Venezuela travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 0% of US
- price level, 2011
- GDP per capita
- $3,495
- 2025
- Happiness
- 5.8 / 10
- World Happiness, 2025
- Homicide rate
- 12.6
- per 100k, 2022
- Road deaths
- 39
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Moderate
- EF EPI 520
- 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 San Mateo (10.213°, -67.4236°, elevation 497 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).