Ílhavo weather in March
In March, Ílhavo sees average daytime highs of 17°C and overnight lows near 10°C, with 88 mm of rain across 9.7 wet days and about 11.7 hours of daylight. It is the 8th-warmest and 6th-wettest month of the year here.
Highs climb over the month, from about 15°C in the first days to 17°C by the end. The sky is clear or mostly clear about 38% of the time in March, and the air most often feels dry.
Daylight stretches from about 11 hours at the start of March to 12 h 24 min by month's end. Set against the rest of the year, March is Ílhavo's 8th-clearest and 3rd-windiest month. For the whole year in context, see Ílhavo's year-round climate.
- Daytime high
- 17°
- 8th warmest
- Overnight low
- 10°
- 4th coldest
- Rainfall
- 88 mm
- 9.7 wet days
- Daylight
- 11 h 42 min
- 6:54 AM – 6:34 PM
- Cloud cover
- 52%
- 8th clearest
- Wind
- 16 km/h
- 3rd windiest
- Solar energy
- 4.36 kWh/m²
- Travel score
- 5.4
- out of 10
Ílhavo is city seat of Ílhavo municipality.
- Air quality
- Good
- PM10 23.2 µg/m³ · 2019
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in March
Highs climb over the month, from about 15°C in the first days to 17°C by the end.
A typical March day in Ílhavo reaches about 17°C in the afternoon and slips back to 10°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 21°C. Set against its neighbours, March runs about 2°C warmer than February and about 1°C cooler than April.
| 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) | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 |
| Avg low (°C) | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 15 | 9 |
| 2 | 15 | 9 |
| 3 | 15 | 9 |
| 4 | 15 | 9 |
| 5 | 16 | 9 |
| 6 | 16 | 10 |
| 7 | 16 | 10 |
| 8 | 16 | 10 |
| 9 | 16 | 10 |
| 10 | 16 | 10 |
| 11 | 16 | 10 |
| 12 | 17 | 10 |
| 13 | 17 | 10 |
| 14 | 17 | 10 |
| 15 | 17 | 10 |
| 16 | 17 | 10 |
| 17 | 17 | 10 |
| 18 | 17 | 10 |
| 19 | 17 | 10 |
| 20 | 17 | 10 |
| 21 | 17 | 10 |
| 22 | 17 | 11 |
| 23 | 17 | 11 |
| 24 | 17 | 11 |
| 25 | 17 | 11 |
| 26 | 17 | 11 |
| 27 | 17 | 11 |
| 28 | 17 | 11 |
| 29 | 17 | 11 |
| 30 | 17 | 11 |
| 31 | 17 | 11 |
Ílhavo weather by month
How March compares with the rest of the year at a glance. March is the 8th-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 14° / 8° | 119 | 11.6 | 9.4 | 3.9 |
| Feb | 15° / 9° | 83 | 9 | 10.4 | 4.4 |
| Mar | 17° / 10° | 88 | 9.7 | 11.7 | 5.4 |
| Apr | 18° / 11° | 92 | 10.7 | 13 | 5.7 |
| May | 20° / 13° | 72 | 9 | 14.2 | 6.6 |
| Jun | 22° / 16° | 24 | 4.7 | 14.8 | 7.9 |
| Jul | 24° / 17° | 10 | 2.2 | 14.6 | 8.9 |
| Aug | 24° / 17° | 15 | 3.1 | 13.6 | 8.7 |
| Sep | 23° / 16° | 48 | 5.6 | 12.3 | 7.9 |
| Oct | 20° / 14° | 132 | 11.4 | 10.9 | 6.2 |
| Nov | 16° / 11° | 133 | 12.5 | 9.7 | 5.0 |
| Dec | 14° / 9° | 129 | 11.2 | 9.1 | 4.2 |
Cloud cover in March
The sky is clear or mostly clear about 38% of the time in March.
Beyond those clear spells, partly cloudy skies cover about 17% of March, with mostly cloudy or overcast conditions the remaining 45%.
| 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 (%) | 50 | 49 | 50 | 50 | 50 | 51 | 51 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 59 | 60 | 60 | 60 | 60 | 60 | 60 | 59 | 58 | 57 | 57 | 56 | 56 | 55 | 54 | 54 | 54 |
| Cloudier (%) | 50 | 51 | 50 | 50 | 50 | 49 | 49 | 47 | 46 | 45 | 44 | 43 | 42 | 41 | 41 | 40 | 40 | 40 | 40 | 40 | 40 | 41 | 42 | 43 | 43 | 44 | 44 | 45 | 46 | 46 | 46 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 50 | 50 |
| 2 | 49 | 51 |
| 3 | 50 | 50 |
| 4 | 50 | 50 |
| 5 | 50 | 50 |
| 6 | 51 | 49 |
| 7 | 51 | 49 |
| 8 | 53 | 47 |
| 9 | 54 | 46 |
| 10 | 55 | 45 |
| 11 | 56 | 44 |
| 12 | 57 | 43 |
| 13 | 58 | 42 |
| 14 | 59 | 41 |
| 15 | 59 | 41 |
| 16 | 60 | 40 |
| 17 | 60 | 40 |
| 18 | 60 | 40 |
| 19 | 60 | 40 |
| 20 | 60 | 40 |
| 21 | 60 | 40 |
| 22 | 59 | 41 |
| 23 | 58 | 42 |
| 24 | 57 | 43 |
| 25 | 57 | 43 |
| 26 | 56 | 44 |
| 27 | 56 | 44 |
| 28 | 55 | 45 |
| 29 | 54 | 46 |
| 30 | 54 | 46 |
| 31 | 54 | 46 |
Chance of precipitation in March
Ílhavo gets around 88 mm of rain over 9.7 wet days in March. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 31% and peaks near 36% 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 (%) | 34 | 34 | 34 | 33 | 33 | 32 | 31 | 31 | 30 | 29 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 35 | 36 | 36 | 36 | 36 |
| Rain chance (%) | |
|---|---|
| 1 | 34 |
| 2 | 34 |
| 3 | 34 |
| 4 | 33 |
| 5 | 33 |
| 6 | 32 |
| 7 | 31 |
| 8 | 31 |
| 9 | 30 |
| 10 | 29 |
| 11 | 28 |
| 12 | 28 |
| 13 | 27 |
| 14 | 27 |
| 15 | 27 |
| 16 | 27 |
| 17 | 27 |
| 18 | 28 |
| 19 | 28 |
| 20 | 29 |
| 21 | 30 |
| 22 | 31 |
| 23 | 32 |
| 24 | 33 |
| 25 | 34 |
| 26 | 35 |
| 27 | 35 |
| 28 | 36 |
| 29 | 36 |
| 30 | 36 |
| 31 | 36 |
Humidity in March
Most of March feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, March lands in the dry band about 97% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 96 | 96 | 96 | 96 | 96 | 96 | 95 | 95 | 95 | 94 |
| Comfortable (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 6 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| 1 | 98 | 2 |
| 2 | 98 | 2 |
| 3 | 98 | 2 |
| 4 | 98 | 2 |
| 5 | 98 | 2 |
| 6 | 98 | 2 |
| 7 | 98 | 2 |
| 8 | 98 | 2 |
| 9 | 98 | 2 |
| 10 | 98 | 2 |
| 11 | 98 | 2 |
| 12 | 98 | 2 |
| 13 | 97 | 3 |
| 14 | 97 | 3 |
| 15 | 97 | 3 |
| 16 | 97 | 3 |
| 17 | 97 | 3 |
| 18 | 97 | 3 |
| 19 | 97 | 3 |
| 20 | 97 | 3 |
| 21 | 97 | 3 |
| 22 | 96 | 4 |
| 23 | 96 | 4 |
| 24 | 96 | 4 |
| 25 | 96 | 4 |
| 26 | 96 | 4 |
| 27 | 96 | 4 |
| 28 | 95 | 5 |
| 29 | 95 | 5 |
| 30 | 95 | 5 |
| 31 | 94 | 6 |
Wind in March
Winds average 16 km/h in March.
Across March, daily wind ranges from about 15 km/h on the calmest days to 16 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) | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 16 | light breeze |
| 2 | 16 | light breeze |
| 3 | 16 | light breeze |
| 4 | 16 | light breeze |
| 5 | 16 | light breeze |
| 6 | 15 | light breeze |
| 7 | 15 | light breeze |
| 8 | 15 | light breeze |
| 9 | 15 | light breeze |
| 10 | 15 | light breeze |
| 11 | 15 | light breeze |
| 12 | 15 | light breeze |
| 13 | 15 | light breeze |
| 14 | 15 | light breeze |
| 15 | 15 | light breeze |
| 16 | 15 | light breeze |
| 17 | 15 | light breeze |
| 18 | 15 | light breeze |
| 19 | 15 | light breeze |
| 20 | 15 | light breeze |
| 21 | 15 | light breeze |
| 22 | 15 | light breeze |
| 23 | 16 | light breeze |
| 24 | 16 | light breeze |
| 25 | 16 | light breeze |
| 26 | 16 | light breeze |
| 27 | 16 | light breeze |
| 28 | 16 | light breeze |
| 29 | 16 | light breeze |
| 30 | 16 | light breeze |
| 31 | 16 | light breeze |
Sunrise & sunset in March
Daylight runs from about 11 hours at the start of March to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 84 minutes over March. Sunrise moves from 7:18 AM to 6:29 AM, and sunset from 6:18 PM to 6:50 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) | 11.0 | 11.0 | 11.1 | 11.1 | 11.2 | 11.2 | 11.3 | 11.3 | 11.3 | 11.4 | 11.4 | 11.5 | 11.5 | 11.6 | 11.6 | 11.7 | 11.7 | 11.8 | 11.8 | 11.9 | 11.9 | 11.9 | 12.0 | 12.0 | 12.1 | 12.1 | 12.2 | 12.2 | 12.3 | 12.3 | 12.4 |
| Sunrise (AM) | 7:18 | 7:17 | 7:15 | 7:14 | 7:12 | 7:11 | 7:09 | 7:07 | 7:06 | 7:04 | 7:03 | 7:01 | 6:59 | 6:58 | 6:56 | 6:54 | 6:53 | 6:51 | 6:49 | 6:48 | 6:46 | 6:44 | 6:43 | 6:41 | 6:39 | 6:37 | 6:36 | 6:34 | 6:32 | 6:31 | 6:29 |
| Sunset (PM) | 6:18 | 6:19 | 6:20 | 6:21 | 6:22 | 6:23 | 6:24 | 6:25 | 6:27 | 6:28 | 6:29 | 6:30 | 6:31 | 6:32 | 6:33 | 6:34 | 6:35 | 6:36 | 6:38 | 6:39 | 6:40 | 6:41 | 6:42 | 6:43 | 6:44 | 6:45 | 6:46 | 6:47 | 6:48 | 6:49 | 6:50 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.0 | 7:18 | 6:18 |
| 2 | 11.0 | 7:17 | 6:19 |
| 3 | 11.1 | 7:15 | 6:20 |
| 4 | 11.1 | 7:14 | 6:21 |
| 5 | 11.2 | 7:12 | 6:22 |
| 6 | 11.2 | 7:11 | 6:23 |
| 7 | 11.3 | 7:09 | 6:24 |
| 8 | 11.3 | 7:07 | 6:25 |
| 9 | 11.3 | 7:06 | 6:27 |
| 10 | 11.4 | 7:04 | 6:28 |
| 11 | 11.4 | 7:03 | 6:29 |
| 12 | 11.5 | 7:01 | 6:30 |
| 13 | 11.5 | 6:59 | 6:31 |
| 14 | 11.6 | 6:58 | 6:32 |
| 15 | 11.6 | 6:56 | 6:33 |
| 16 | 11.7 | 6:54 | 6:34 |
| 17 | 11.7 | 6:53 | 6:35 |
| 18 | 11.8 | 6:51 | 6:36 |
| 19 | 11.8 | 6:49 | 6:38 |
| 20 | 11.9 | 6:48 | 6:39 |
| 21 | 11.9 | 6:46 | 6:40 |
| 22 | 11.9 | 6:44 | 6:41 |
| 23 | 12.0 | 6:43 | 6:42 |
| 24 | 12.0 | 6:41 | 6:43 |
| 25 | 12.1 | 6:39 | 6:44 |
| 26 | 12.1 | 6:37 | 6:45 |
| 27 | 12.2 | 6:36 | 6:46 |
| 28 | 12.2 | 6:34 | 6:47 |
| 29 | 12.3 | 6:32 | 6:48 |
| 30 | 12.3 | 6:31 | 6:49 |
| 31 | 12.4 | 6:29 | 6:50 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 4.36 kWh/m².
For context, solar energy here swings from a low near 1.8 kWh/m² to a high of 7.33 kWh/m² in July across the year — March's 4.36 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) | 3.6 | 3.7 | 3.7 | 3.8 | 3.8 | 3.9 | 3.9 | 4.0 | 4.0 | 4.1 | 4.2 | 4.2 | 4.3 | 4.4 | 4.4 | 4.5 | 4.5 | 4.5 | 4.6 | 4.6 | 4.7 | 4.7 | 4.7 | 4.7 | 4.8 | 4.8 | 4.8 | 4.8 | 4.9 | 4.9 | 5.0 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | 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 | 3.6 | Moderate |
| 2 | 3.7 | Moderate |
| 3 | 3.7 | Moderate |
| 4 | 3.8 | Moderate |
| 5 | 3.8 | Moderate |
| 6 | 3.9 | Moderate |
| 7 | 3.9 | Moderate |
| 8 | 4.0 | Moderate |
| 9 | 4.0 | Bright |
| 10 | 4.1 | Bright |
| 11 | 4.2 | Bright |
| 12 | 4.2 | Bright |
| 13 | 4.3 | Bright |
| 14 | 4.4 | Bright |
| 15 | 4.4 | Bright |
| 16 | 4.5 | Bright |
| 17 | 4.5 | Bright |
| 18 | 4.5 | Bright |
| 19 | 4.6 | Bright |
| 20 | 4.6 | Bright |
| 21 | 4.7 | Bright |
| 22 | 4.7 | Bright |
| 23 | 4.7 | Bright |
| 24 | 4.7 | Bright |
| 25 | 4.8 | Bright |
| 26 | 4.8 | Bright |
| 27 | 4.8 | Bright |
| 28 | 4.8 | Bright |
| 29 | 4.9 | Bright |
| 30 | 4.9 | Bright |
| 31 | 5.0 | Bright |
Hazard calendar for Ílhavo
In March, Ílhavo sits inside its rainy season season. The full year is below, with each hazard's peak months called out.
Ílhavo's rainy season runs October–May, when most of the year's rain falls.
Is March a good time to visit Ílhavo?
Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
March is a reasonable time to visit Ílhavo for sightseeing.
What to pack for Ílhavo in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, Ílhavo sees daytime highs around 17°C and nights near 10°C. Worth packing: a warm layer and rain gear. About 10 days see rain.
Sea temperature near Ílhavo in March
The nearest coast averages about 14°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 17 km away) is warmest in August at about 18°C and coldest in February near 14°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 14 | 14 | 14 | 15 | 16 | 17 | 18 | 18 | 18 | 17 | 16 | 15 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Cool | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 14 | Bracing |
| Feb | 14 | Bracing |
| Mar | 14 | Bracing |
| Apr | 15 | Bracing |
| May | 16 | Cool |
| Jun | 17 | Cool |
| Jul | 18 | Cool |
| Aug | 18 | Cool |
| Sep | 18 | Cool |
| Oct | 17 | Cool |
| Nov | 16 | Cool |
| Dec | 15 | Bracing |
UV index in Ílhavo in March
Clear-sky midday UV in March peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ílhavo peaks around July 11 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 6 | 7 | 9 | 9 | 8 | 5 | 4 | 2 | 2 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 6 | High |
| May | 7 | High |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 5 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Air quality in Ílhavo in March
Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.
Air quality in Ílhavo is worst in October — around 19 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (November, 7 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) | 7 | 9 | 11 | 10 | 8 | 12 | 8 | 14 | 17 | 19 | 7 | 7 |
| Level | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 9 | Good |
| Mar | 11 | Good |
| Apr | 10 | Good |
| May | 8 | Good |
| Jun | 12 | Good |
| Jul | 8 | Good |
| Aug | 14 | Moderate |
| Sep | 17 | Moderate |
| Oct | 19 | Moderate |
| Nov | 7 | Good |
| Dec | 7 | Good |
Where is Ílhavo?
Ílhavo sits at 40.6°N, 8.7°W, 13 m above sea level, in Portugal. The nearest listed city is Vilar, 4.0 km away.
Topography around Ílhavo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ílhavo.
Within 3 km, the terrain around Ílhavo has only modest variations in elevation — a maximum elevation change of 55 m around an average of 14 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 126 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,365 m.
The land around Ílhavo is covered by grassland (23%), trees (21%) and artificial surfaces (20%) within 3 km, water (31%) and trees (30%) within 16 km, and trees (46%) and water (27%) within 80 km.
Portugal travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / E / F
- 230 V · 50 Hz
- Prices
- ≈ 60% of US
- price level, 2025
- GDP per capita
- $32,082
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 95%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2022
- Road deaths
- 8.2
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very high
- EF EPI 612
- 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 Ílhavo (40.6019°, -8.6702°, elevation 13 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).