UTC Offset
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São Mateus, Portugal Snapshot 2026
Where is São Mateus?
São Mateus, Portugal
- Continent
- Europe
- Country
- Portugal
- City
- São Mateus
- Population
- 3.8K
- Coordinates
- 38.66°, -27.27°
São Mateus is a city in Portugal with a population of approximately 3.8K. Average temperatures range from 14°C (57°F) in March to 24°C (76°F) in August. The best time to visit is June, July, August, September.
Time in São Mateus right now
Open full time & time zone page 15:16 16
Tuesday, June 30, 2026
IANA time zone
Atlantic/Azores
Daylight saving
DST in effect
GMT-1 / GMT
Next DST change
October 25
backward -1h
Live weather in São Mateus
Daylight in São Mateus today
View full sunrise & sunset page Sunrise
Sunset
Day length
14h 50m
Climate normals for São Mateus
Long-term monthly averages based on historical data.
January
Fair 
February
Fair March
Fair April
Fair May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Good November
Good December
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 17°C / 15°C | 14°C / 11°C | 12days (97 mm) Wet | 6.5h Fair | 79% Humid | 2.4 Moderate | Fair | View Details |
| February | 16°C / 14°C | 13°C / 10°C | 11days (61 mm) Wet | 8h Good | 77% Humid | 3.4 Moderate | Fair | View Details |
| March | 16°C / 14°C | 13°C / 9°C | 11days (63 mm) Wet | 8.9h Good | 76% Humid | 4.7 Moderate | Fair | View Details |
| April | 17°C / 15°C | 14°C / 10°C | 11days (67 mm) Wet | 10.5h Excellent | 79% Humid | 5.6 High | Fair | View Details |
| May | 18°C / 16°C | 17°C / 13°C | 10days (61 mm) Wet | 11.1h Excellent | 80% Humid | 6.2 High | Good | View Details |
| June best | 20°C / 18°C | 21°C / 17°C | 5days (37 mm) Good | 12.3h Excellent | 81% Humid | 7 High | Excellent | View Details |
| July best | 23°C / 21°C | 25°C / 21°C | 3days (17 mm) Excellent | 12.8h Excellent | 80% Humid | 7.1 Very High | Excellent | View Details |
| August best | 24°C / 22°C | 26°C / 23°C | 7days (40 mm) Good | 11.7h Excellent | 79% Humid | 7 High | Excellent | View Details |
| September best | 23°C / 21°C | 24°C / 20°C | 8days (45 mm) Wet | 10.6h Excellent | 77% Humid | 5.6 High | Excellent | View Details |
| October | 21°C / 19°C | 20°C / 17°C | 12days (87 mm) Wet | 8.5h Good | 77% Humid | 4.2 Moderate | Good | View Details |
| November | 19°C / 17°C | 17°C / 13°C | 11days (92 mm) Wet | 7.3h Good | 76% Humid | 2.9 Moderate | Good | View Details |
| December | 18°C / 16°C | 15°C / 11°C | 13days (106 mm) Wet | 6.4h Fair | 77% Humid | 2.3 Moderate | Fair | View Details |
Monthly Temperatures
High Low
Line chart showing monthly temperatures. Jan: 17°C / 15°C . Feb: 16°C / 14°C . Mar: 16°C / 14°C . Apr: 17°C / 15°C . May: 18°C / 16°C . Jun: 20°C / 18°C . Jul: 23°C / 21°C . Aug: 24°C / 22°C . Sep: 23°C / 21°C . Oct: 21°C / 19°C . Nov: 19°C / 17°C . Dec: 18°C / 16°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 97 mm. Feb: 61 mm. Mar: 63 mm. Apr: 67 mm. May: 61 mm. Jun: 37 mm. Jul: 17 mm. Aug: 40 mm. Sep: 45 mm. Oct: 87 mm. Nov: 92 mm. Dec: 106 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 79%. Feb: 77%. Mar: 76%. Apr: 79%. May: 80%. Jun: 81%. Jul: 80%. Aug: 79%. Sep: 77%. Oct: 77%. Nov: 76%. Dec: 77%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 40 km/h . Feb: 38 km/h . Mar: 38 km/h . Apr: 37 km/h . May: 31 km/h . Jun: 26 km/h . Jul: 23 km/h . Aug: 24 km/h . Sep: 28 km/h . Oct: 36 km/h . Nov: 38 km/h . Dec: 40 km/h .
Sea Temperature
Sea Temperature swim
Line chart showing monthly sea temperature. Jan: 17°C . Feb: 16°C . Mar: 16°C . Apr: 16°C . May: 18°C . Jun: 20°C . Jul: 22°C . Aug: 24°C . Sep: 23°C . Oct: 22°C . Nov: 20°C . Dec: 18°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 5. Apr: UV 6. May: UV 6. Jun: UV 7. Jul: UV 7. Aug: UV 7. Sep: UV 6. Oct: UV 4. Nov: UV 3. Dec: UV 2.
Frequently Asked Questions
São Mateus has a population of approximately 3.8K.
The best months to visit São Mateus are June, July, August, September, when temperatures are pleasant and rainfall is lower.
São Mateus receives approximately 773mm of rainfall annually across 114 rainy days.
São Mateus is located in Portugal, in the Europe region.