Hérouville-Saint-Clair weather in March
In March, Hérouville-Saint-Clair sees average daytime highs of 12°C and overnight lows near 5°C, with 54 mm of precipitation across 11.3 wet days and about 11.6 hours of daylight. It is the 8th-warmest and 10th-wettest month of the year here.
Highs climb over the month, from about 10°C in the first days to 13°C by the end. The sky is clear or mostly clear about 17% of the time in March, and the air most often feels dry.
Daylight stretches from about 10 h 36 min at the start of March to 12 h 30 min by month's end. Set against the rest of the year, March is Hérouville-Saint-Clair's 7th-clearest and 5th-windiest month. For the whole year in context, see Hérouville-Saint-Clair's year-round climate.
- Daytime high
- 12°
- 8th warmest
- Overnight low
- 5°
- 4th coldest
- Precipitation
- 54 mm
- 11.3 wet days
- Daylight
- 11 h 30 min
- 7:24 AM – 6:57 PM
- Cloud cover
- 71%
- 7th clearest
- Wind
- 15 km/h
- 5th windiest
- Solar energy
- 3.04 kWh/m²
- Travel score
- 2.9
- out of 10
Temperature in March
Highs climb over the month, from about 10°C in the first days to 13°C by the end.
A typical March day in Hérouville-Saint-Clair reaches about 12°C in the afternoon and slips back to 5°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 16°C. Set against its neighbours, March runs about 3°C warmer than February and about 3°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) | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Avg low (°C) | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 10 | 4 |
| 2 | 10 | 4 |
| 3 | 10 | 4 |
| 4 | 10 | 4 |
| 5 | 10 | 4 |
| 6 | 11 | 4 |
| 7 | 11 | 5 |
| 8 | 11 | 5 |
| 9 | 11 | 5 |
| 10 | 11 | 5 |
| 11 | 11 | 5 |
| 12 | 11 | 5 |
| 13 | 12 | 5 |
| 14 | 12 | 5 |
| 15 | 12 | 5 |
| 16 | 12 | 5 |
| 17 | 12 | 5 |
| 18 | 12 | 5 |
| 19 | 12 | 5 |
| 20 | 12 | 5 |
| 21 | 12 | 5 |
| 22 | 12 | 5 |
| 23 | 12 | 5 |
| 24 | 13 | 5 |
| 25 | 13 | 5 |
| 26 | 13 | 5 |
| 27 | 13 | 5 |
| 28 | 13 | 5 |
| 29 | 13 | 6 |
| 30 | 13 | 6 |
| 31 | 13 | 6 |
How March really feels in Hérouville-Saint-Clair
Once humidity and wind are folded in, March averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
March sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Hérouville-Saint-Clair weather by month
How March compares with the rest of the year at a glance. March is the 8th-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 8° / 4° | 59 | 11.5 | 0.5 | 8.5 | 1.3 |
| Feb | 9° / 3° | 51 | 11.1 | 0.8 | 9.8 | 1.6 |
| Mar | 12° / 5° | 54 | 11.3 | 0.4 | 11.6 | 2.9 |
| Apr | 15° / 7° | 56 | 11.7 | 0.1 | 13.4 | 4.1 |
| May | 18° / 10° | 58 | 11.4 | 0 | 15.1 | 5.3 |
| Jun | 21° / 12° | 62 | 10.5 | 0 | 15.9 | 6.1 |
| Jul | 23° / 14° | 55 | 10.9 | 0 | 15.6 | 6.6 |
| Aug | 23° / 14° | 60 | 10.1 | 0 | 14.2 | 6.7 |
| Sep | 20° / 12° | 53 | 9.7 | 0 | 12.4 | 6.2 |
| Oct | 16° / 9° | 65 | 12.3 | 0 | 10.5 | 4.6 |
| Nov | 11° / 6° | 66 | 12.8 | 0 | 8.9 | 2.6 |
| Dec | 9° / 4° | 74 | 13.3 | 0.5 | 8.1 | 1.5 |
Cloud cover in March
The sky is clear or mostly clear about 17% of the time in March.
Beyond those clear spells, partly cloudy skies cover about 12% of March, with mostly cloudy or overcast conditions the remaining 71%. 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 (%) | 24 | 24 | 24 | 25 | 26 | 26 | 26 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 33 | 33 | 33 |
| Cloudier (%) | 76 | 76 | 76 | 75 | 74 | 74 | 74 | 72 | 72 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 70 | 70 | 70 | 70 | 69 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 67 | 67 | 67 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 24 | 76 |
| 2 | 24 | 76 |
| 3 | 24 | 76 |
| 4 | 25 | 75 |
| 5 | 26 | 74 |
| 6 | 26 | 74 |
| 7 | 26 | 74 |
| 8 | 28 | 72 |
| 9 | 28 | 72 |
| 10 | 29 | 71 |
| 11 | 29 | 71 |
| 12 | 29 | 71 |
| 13 | 29 | 71 |
| 14 | 29 | 71 |
| 15 | 29 | 71 |
| 16 | 29 | 71 |
| 17 | 30 | 70 |
| 18 | 30 | 70 |
| 19 | 30 | 70 |
| 20 | 30 | 70 |
| 21 | 31 | 69 |
| 22 | 32 | 68 |
| 23 | 32 | 68 |
| 24 | 32 | 68 |
| 25 | 32 | 68 |
| 26 | 32 | 68 |
| 27 | 32 | 68 |
| 28 | 32 | 68 |
| 29 | 33 | 67 |
| 30 | 33 | 67 |
| 31 | 33 | 67 |
Chance of precipitation in March
Hérouville-Saint-Clair gets around 54 mm of rain and snow over 11.3 wet days in March. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 36% and peaks near 43% on the wettest days, and about 0 day brings snow.
| 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 (%) | 43 | 43 | 42 | 41 | 40 | 39 | 38 | 37 | 35 | 34 | 33 | 32 | 32 | 31 | 31 | 31 | 32 | 32 | 33 | 33 | 34 | 35 | 36 | 37 | 37 | 38 | 38 | 39 | 39 | 39 | 38 |
| Snow chance (%) | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 43 | 3 |
| 2 | 43 | 3 |
| 3 | 42 | 2 |
| 4 | 41 | 2 |
| 5 | 40 | 2 |
| 6 | 39 | 2 |
| 7 | 38 | 2 |
| 8 | 37 | 2 |
| 9 | 35 | 1 |
| 10 | 34 | 1 |
| 11 | 33 | 1 |
| 12 | 32 | 1 |
| 13 | 32 | 1 |
| 14 | 31 | 1 |
| 15 | 31 | 1 |
| 16 | 31 | 1 |
| 17 | 32 | 1 |
| 18 | 32 | 1 |
| 19 | 33 | 1 |
| 20 | 33 | 1 |
| 21 | 34 | 1 |
| 22 | 35 | 1 |
| 23 | 36 | 1 |
| 24 | 37 | 1 |
| 25 | 37 | 1 |
| 26 | 38 | 1 |
| 27 | 38 | 1 |
| 28 | 39 | 1 |
| 29 | 39 | 1 |
| 30 | 39 | 1 |
| 31 | 38 | 1 |
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 100% 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 (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Dry (%) | |
|---|---|
| 1 | 100 |
| 2 | 100 |
| 3 | 100 |
| 4 | 100 |
| 5 | 100 |
| 6 | 100 |
| 7 | 100 |
| 8 | 100 |
| 9 | 100 |
| 10 | 100 |
| 11 | 100 |
| 12 | 100 |
| 13 | 100 |
| 14 | 100 |
| 15 | 100 |
| 16 | 100 |
| 17 | 100 |
| 18 | 100 |
| 19 | 100 |
| 20 | 100 |
| 21 | 100 |
| 22 | 100 |
| 23 | 100 |
| 24 | 100 |
| 25 | 100 |
| 26 | 100 |
| 27 | 100 |
| 28 | 100 |
| 29 | 100 |
| 30 | 100 |
| 31 | 100 |
Wind in March
Winds average 15 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 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| 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 | 16 | light breeze |
| 7 | 16 | light breeze |
| 8 | 16 | light breeze |
| 9 | 16 | light breeze |
| 10 | 16 | light breeze |
| 11 | 16 | 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 | 15 | light breeze |
| 24 | 15 | light breeze |
| 25 | 15 | light breeze |
| 26 | 15 | light breeze |
| 27 | 15 | light breeze |
| 28 | 15 | light breeze |
| 29 | 15 | light breeze |
| 30 | 15 | light breeze |
| 31 | 15 | light breeze |
Sunrise & sunset in March
Daylight runs from about 10 h 36 min at the start of March to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 114 minutes over March. Sunrise moves from 7:56 AM to 6:52 AM, and sunset from 6:33 PM to 7:21 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) | 10.6 | 10.7 | 10.7 | 10.8 | 10.9 | 10.9 | 11.0 | 11.1 | 11.1 | 11.2 | 11.2 | 11.3 | 11.4 | 11.4 | 11.5 | 11.5 | 11.6 | 11.7 | 11.7 | 11.8 | 11.9 | 11.9 | 12.0 | 12.0 | 12.1 | 12.2 | 12.2 | 12.3 | 12.4 | 12.4 | 12.5 |
| Sunrise (AM) | 7:56 | 7:54 | 7:52 | 7:50 | 7:48 | 7:46 | 7:43 | 7:41 | 7:39 | 7:37 | 7:35 | 7:33 | 7:31 | 7:29 | 7:27 | 7:24 | 7:22 | 7:20 | 7:18 | 7:16 | 7:14 | 7:11 | 7:09 | 7:07 | 7:05 | 7:03 | 7:00 | 6:58 | 6:56 | 6:54 | 6:52 |
| Sunset (PM) | 6:33 | 6:35 | 6:37 | 6:38 | 6:40 | 6:41 | 6:43 | 6:45 | 6:46 | 6:48 | 6:49 | 6:51 | 6:53 | 6:54 | 6:56 | 6:57 | 6:59 | 7:00 | 7:02 | 7:04 | 7:05 | 7:07 | 7:08 | 7:10 | 7:11 | 7:13 | 7:14 | 7:16 | 7:18 | 7:19 | 7:21 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.6 | 7:56 | 6:33 |
| 2 | 10.7 | 7:54 | 6:35 |
| 3 | 10.7 | 7:52 | 6:37 |
| 4 | 10.8 | 7:50 | 6:38 |
| 5 | 10.9 | 7:48 | 6:40 |
| 6 | 10.9 | 7:46 | 6:41 |
| 7 | 11.0 | 7:43 | 6:43 |
| 8 | 11.1 | 7:41 | 6:45 |
| 9 | 11.1 | 7:39 | 6:46 |
| 10 | 11.2 | 7:37 | 6:48 |
| 11 | 11.2 | 7:35 | 6:49 |
| 12 | 11.3 | 7:33 | 6:51 |
| 13 | 11.4 | 7:31 | 6:53 |
| 14 | 11.4 | 7:29 | 6:54 |
| 15 | 11.5 | 7:27 | 6:56 |
| 16 | 11.5 | 7:24 | 6:57 |
| 17 | 11.6 | 7:22 | 6:59 |
| 18 | 11.7 | 7:20 | 7:00 |
| 19 | 11.7 | 7:18 | 7:02 |
| 20 | 11.8 | 7:16 | 7:04 |
| 21 | 11.9 | 7:14 | 7:05 |
| 22 | 11.9 | 7:11 | 7:07 |
| 23 | 12.0 | 7:09 | 7:08 |
| 24 | 12.0 | 7:07 | 7:10 |
| 25 | 12.1 | 7:05 | 7:11 |
| 26 | 12.2 | 7:03 | 7:13 |
| 27 | 12.2 | 7:00 | 7:14 |
| 28 | 12.3 | 6:58 | 7:16 |
| 29 | 12.4 | 6:56 | 7:18 |
| 30 | 12.4 | 6:54 | 7:19 |
| 31 | 12.5 | 6:52 | 7:21 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 3.04 kWh/m².
For context, solar energy here swings from a low near 0.81 kWh/m² to a high of 5.83 kWh/m² in June across the year — March's 3.04 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) | 2.3 | 2.4 | 2.4 | 2.5 | 2.5 | 2.6 | 2.6 | 2.7 | 2.7 | 2.8 | 2.8 | 2.9 | 2.9 | 3.0 | 3.0 | 3.0 | 3.1 | 3.1 | 3.2 | 3.2 | 3.3 | 3.4 | 3.4 | 3.5 | 3.5 | 3.6 | 3.6 | 3.7 | 3.7 | 3.8 | 3.9 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.3 | Moderate |
| 2 | 2.4 | Moderate |
| 3 | 2.4 | Moderate |
| 4 | 2.5 | Moderate |
| 5 | 2.5 | Moderate |
| 6 | 2.6 | Moderate |
| 7 | 2.6 | Moderate |
| 8 | 2.7 | Moderate |
| 9 | 2.7 | Moderate |
| 10 | 2.8 | Moderate |
| 11 | 2.8 | Moderate |
| 12 | 2.9 | Moderate |
| 13 | 2.9 | Moderate |
| 14 | 3.0 | Moderate |
| 15 | 3.0 | Moderate |
| 16 | 3.0 | Moderate |
| 17 | 3.1 | Moderate |
| 18 | 3.1 | Moderate |
| 19 | 3.2 | Moderate |
| 20 | 3.2 | Moderate |
| 21 | 3.3 | Moderate |
| 22 | 3.4 | Moderate |
| 23 | 3.4 | Moderate |
| 24 | 3.5 | Moderate |
| 25 | 3.5 | Moderate |
| 26 | 3.6 | Moderate |
| 27 | 3.6 | Moderate |
| 28 | 3.7 | Moderate |
| 29 | 3.7 | Moderate |
| 30 | 3.8 | Moderate |
| 31 | 3.9 | Moderate |
Is March a good time to visit Hérouville-Saint-Clair?
Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
March is a weaker month for outdoor sightseeing in Hérouville-Saint-Clair.
What to pack for Hérouville-Saint-Clair in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, Hérouville-Saint-Clair sees daytime highs around 12°C and nights near 5°C. Pack a warm layer. Worth having: rain gear. About 11 days see rain.
Sea temperature near Hérouville-Saint-Clair in March
The nearest coast averages about 8°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 19 km away) is warmest in August at about 19°C and coldest in February near 8°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) | 9 | 8 | 8 | 10 | 12 | 15 | 17 | 19 | 18 | 16 | 13 | 10 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 9 | Bracing |
| Feb | 8 | Bracing |
| Mar | 8 | Bracing |
| Apr | 10 | Bracing |
| May | 12 | Bracing |
| Jun | 15 | Bracing |
| Jul | 17 | Cool |
| Aug | 19 | Cool |
| Sep | 18 | Cool |
| Oct | 16 | Cool |
| Nov | 13 | Bracing |
| Dec | 10 | Bracing |
UV index in Hérouville-Saint-Clair in March
Clear-sky midday UV in March peaks around 3. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Hérouville-Saint-Clair peaks around June 18 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 5 | 6 | 7 | 6 | 7 | 5 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | High | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 5 | Moderate |
| May | 6 | High |
| Jun | 7 | High |
| Jul | 6 | High |
| Aug | 7 | High |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Air quality in Hérouville-Saint-Clair 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 Hérouville-Saint-Clair is worst in April — around 15 µg/m³ PM2.5 (moderate), about 2.1× 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) | 8 | 10 | 14 | 15 | 13 | 12 | 10 | 11 | 10 | 8 | 7 | 8 |
| Level | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 10 | Good |
| Mar | 14 | Moderate |
| Apr | 15 | Moderate |
| May | 13 | Moderate |
| Jun | 12 | Moderate |
| Jul | 10 | Good |
| Aug | 11 | Good |
| Sep | 10 | Good |
| Oct | 8 | Good |
| Nov | 7 | Good |
| Dec | 8 | Good |
Where is Hérouville-Saint-Clair?
Hérouville-Saint-Clair sits at 49.2°N, 0.3°W, 5 m above sea level, in France. The nearest listed city is Caen, 5.0 km away.
Topography around Hérouville-Saint-Clair
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Hérouville-Saint-Clair.
Within 3 km, the terrain around Hérouville-Saint-Clair has only modest variations in elevation — a maximum elevation change of 92 m around an average of 27 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 164 m; within 80 km, significant variations in elevation — a maximum elevation change of 459 m.
The land around Hérouville-Saint-Clair is covered by artificial surfaces (30%), cropland (27%) and trees (23%) within 3 km, cropland (43%) and grassland (20%) within 16 km, and grassland (30%), cropland (29%) and water (23%) within 80 km.
France travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / E
- 230 V · 50 Hz
- Prices
- ≈ 77% of US
- price level, 2025
- GDP per capita
- $48,986
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 1.3
- per 100k, 2023
- Road deaths
- 5.1
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 539
- 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 Hérouville-Saint-Clair (49.2109°, -0.3065°, elevation 5 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).