Weather in Dieppe on 20 September 2026
Preliminary outlook for 20 September 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +21°C and nighttime around +14°C, average precipitation 0.3 mm, wind around 5 m/s, humidity around 74%.
This is a climate-based estimate, not a precise long-range forecast. It is replaced by hourly data when the date enters the forecast window.
+20°C
Weather archive — latest year: 2025
Patchy rain nearby
Weather archive — latest year: 2025
Nighttime: +16°C
Precipitation: 0.4 mm
Wind: 6 — 8 m/s
Humidity: 68%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +23°C | Sun hours | 8 h |
| UV index | 5 | Cloud cover (avg.) | 60% |
| Pressure (avg.) | 759 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +21°C | Dew point (avg.) | +14°C |
| Heat index (avg.) | +21°C | Wind chill (avg.) | +21°C |
| Wind gusts (max.) | 15 m/s | Wind direction (avg.) | 189° ↓ (S) |
Sunrise
07:39
Duration
12 h 19 min
Sunset
19:58
Moonrise
05:49
Moonset
19:30
Moon phase
New Moon
Illumination
0%
+17°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +14°C
Sea temperature: +18°C
Precipitation: 0 mm
Wind: 5 — 6 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +21°C | Sun hours | 10 h |
| UV index | 5 | Cloud cover (avg.) | 38% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +18°C |
| Feels like (avg.) | +17°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +17°C | Wind chill (avg.) | +17°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 71° ↗ (ENE) |
Sunrise
07:40
Duration
12 h 17 min
Sunset
19:57
Moonrise
20:40
Moonset
10:22
Moon phase
Waning Gibbous
Illumination
77%
+19°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +15°C
Precipitation: 0 mm
Wind: 9 — 11 m/s
Humidity: 72%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +23°C | Sun hours | 8 h |
| UV index | 5 | Cloud cover (avg.) | 24% |
| Pressure (avg.) | 755 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +19°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +19°C | Wind chill (avg.) | +19°C |
| Wind gusts (max.) | 16 m/s | Wind direction (avg.) | 205° ↓ (SSW) |
Sunrise
07:38
Duration
12 h 21 min
Sunset
19:59
Moonrise
13:48
Moonset
21:52
Moon phase
Waxing Crescent
Illumination
35%
+14°C
Weather archive — for 2022 year
Partly Cloudy
Weather archive — for 2022 year
Nighttime: +11°C
Precipitation: 0 mm
Wind: 3 — 6 m/s
Humidity: 66%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +17°C | Sun hours | 12 h |
| UV index | 4 | Cloud cover (avg.) | 45% |
| Pressure (avg.) | 769 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +15°C | Dew point (avg.) | +8°C |
| Heat index (avg.) | +15°C | Wind chill (avg.) | +15°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 86° ↑ (N) |
Sunrise
07:39
Duration
12 h 20 min
Sunset
19:59
Moonrise
01:25
Moonset
18:31
Moon phase
Last Quarter
Illumination
22%
+15°C
Weather archive — for 2021 year
Patchy rain nearby
Weather archive — for 2021 year
Nighttime: +13°C
Precipitation: 1.1 mm
Wind: 4 — 6 m/s
Humidity: 89%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +17°C | Sun hours | 7 h |
| UV index | 3 | Cloud cover (avg.) | 71% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +15°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +15°C | Wind chill (avg.) | +15°C |
| Wind gusts (max.) | 10 m/s | Wind direction (avg.) | 248° ↑ (N) |
Sunrise
07:39
Duration
12 h 19 min
Sunset
19:58
Moonrise
20:15
Moonset
06:27
Moon phase
Waxing Gibbous
Illumination
97%
+20°C
Weather archive — for 2020 year
Partly Cloudy
Weather archive — for 2020 year
Nighttime: +17°C
Precipitation: 0 mm
Wind: 4 — 4 m/s
Humidity: 79%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +23°C | Sun hours | 12 h |
| UV index | 4 | Cloud cover (avg.) | 39% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +21°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +22°C | Wind chill (avg.) | +20°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 74° ↗ (ENE) |
Sunrise
07:39
Duration
12 h 18 min
Sunset
19:57
Moonrise
10:55
Moonset
21:34
Moon phase
Waxing Crescent
Illumination
17%
Weather in Dieppe on 20 September in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+23°C
|
+16°C
|
+20°C | 8 h | 5 | 68% | 6 — 8 m/s |
| 2024 |
+21°C
|
+14°C
|
+17°C | 10 h | 5 | 70% | 5 — 6 m/s |
| 2023 |
+23°C
|
+15°C
|
+19°C | 8 h | 5 | 72% | 9 — 11 m/s |
| 2022 |
+17°C
|
+11°C
|
+14°C | 12 h | 4 | 66% | 3 — 6 m/s |
| 2021 |
+17°C
|
+13°C
|
+15°C | 7 h | 3 | 89% | 4 — 6 m/s |
| 2020 |
+23°C
|
+17°C
|
+20°C | 12 h | 4 | 79% | 4 — 4 m/s |