Saint-Quentin-en-Yvelines weather in April

In April, Saint-Quentin-en-Yvelines sees average daytime highs of 15°C and overnight lows near 6°C, with 52 mm of rain across 11 wet days and about 13.4 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 13°C in the first days to 16°C by the end. The sky is clear or mostly clear about 20% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 30 min at the start of April to 14 h 12 min by month's end. Set against the rest of the year, April is Saint-Quentin-en-Yvelines's 5th-clearest and 7th-windiest month. For the whole year in context, see Saint-Quentin-en-Yvelines's year-round climate.

Daytime high: 15°; 7th warmest
Overnight low: 6°; 6th coldest
Rainfall: 52 mm; 11 wet days
Daylight: 13 h 24 min; 6:09 AM – 7:35 PM
Cloud cover: 66%; 5th clearest
Wind: 13 km/h; 7th windiest
Solar energy: 4.49 kWh/m²
Travel score: 4.3; out of 10

← March Saint-Quentin-en-Yvelines year-round climate May →Best places to visit in April

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 13°C in the first days to 16°C by the end.

A typical April day in Saint-Quentin-en-Yvelines reaches about 15°C in the afternoon and slips back to 6°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 21°C. Set against its neighbours, April runs about 3°C warmer than March and about 3°C cooler than May.

	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)	13	13	13	14	14	14	14	14	14	14	14	14	15	15	15	15	15	15	15	16	16	16	16	16	16	16	16	16	16	17
Avg low (°C)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	6	6	6	6	6	6	6	7	7	7	7	7	7	7	8

	Avg high (°C)	Avg low (°C)
1	13	5
2	13	5
3	13	5
4	14	5
5	14	5
6	14	5
7	14	5
8	14	5
9	14	5
10	14	5
11	14	5
12	14	5
13	15	5
14	15	5
15	15	5
16	15	6
17	15	6
18	15	6
19	15	6
20	16	6
21	16	6
22	16	6
23	16	7
24	16	7
25	16	7
26	16	7
27	16	7
28	16	7
29	16	7
30	17	8

How April really feels in Saint-Quentin-en-Yvelines

Once humidity and wind are folded in, April 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.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Saint-Quentin-en-Yvelines weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	7° / 2°	53	11.3	1	8.5	0.7
Feb	8° / 2°	47	10	1.3	9.8	1.2
Mar	12° / 4°	51	10.6	0.6	11.6	2.9
Apr	15° / 6°	52	11	0	13.4	4.3
May	18° / 9°	67	11.6	0	15	5.5
Jun	22° / 12°	60	10.4	0	15.9	6.4
Jul	24° / 14°	55	9.1	0	15.5	7.0
Aug	24° / 14°	58	8.9	0	14.2	7.0
Sep	20° / 11°	48	8.5	0	12.4	6.4
Oct	16° / 8°	63	11.2	0	10.5	4.6
Nov	10° / 5°	59	11.1	0.3	9	2.2
Dec	7° / 3°	68	12.4	1.1	8.1	0.9

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 16% of April, with mostly cloudy or overcast conditions the remaining 65%. Skies tend to cloud over 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
Clearer (%)	36	36	36	36	37	37	38	37	37	38	38	39	39	39	39	38	39	38	36	36	35	35	33	32	31	31	29	28	27	27
Cloudier (%)	64	64	64	64	63	63	62	63	63	62	62	61	61	61	61	62	61	62	64	64	65	65	67	68	69	69	71	72	73	73

	Clearer (%)	Cloudier (%)
1	36	64
2	36	64
3	36	64
4	36	64
5	37	63
6	37	63
7	38	62
8	37	63
9	37	63
10	38	62
11	38	62
12	39	61
13	39	61
14	39	61
15	39	61
16	38	62
17	39	61
18	38	62
19	36	64
20	36	64
21	35	65
22	35	65
23	33	67
24	32	68
25	31	69
26	31	69
27	29	71
28	28	72
29	27	73
30	27	73

Chance of precipitation in April

Any precipitation

Saint-Quentin-en-Yvelines gets around 52 mm of rain over 11 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 36% and peaks near 44% on the wettest days. The odds climb toward the end of the month.

	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 (%)	35	35	34	34	33	33	33	32	32	32	31	31	31	31	32	32	33	34	35	36	37	39	40	41	41	42	42	43	43	44

	Rain chance (%)
1	35
2	35
3	34
4	34
5	33
6	33
7	33
8	32
9	32
10	32
11	31
12	31
13	31
14	31
15	32
16	32
17	33
18	34
19	35
20	36
21	37
22	39
23	40
24	41
25	41
26	42
27	42
28	43
29	43
30	44

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, April 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
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	99	99	99	99	99	98	98	98	97
Comfortable (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	2	2	2	3

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	98	2
28	98	2
29	98	2
30	97	3

Wind in April

Winds average 13 km/h in April.

Across April, daily wind ranges from about 12 km/h on the calmest days to 13 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)	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	12	12	12	12	12	12	12	12	12	12	12	12
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

	Wind speed (km/h)	Feels
1	13	light breeze
2	13	light breeze
3	13	light breeze
4	13	light breeze
5	13	light breeze
6	13	light breeze
7	13	light breeze
8	13	light breeze
9	13	light breeze
10	13	light breeze
11	13	light breeze
12	13	light breeze
13	13	light breeze
14	13	light breeze
15	13	light breeze
16	13	light breeze
17	13	light breeze
18	13	light breeze
19	12	light breeze
20	12	light breeze
21	12	light breeze
22	12	light breeze
23	12	light breeze
24	12	light breeze
25	12	light breeze
26	12	light breeze
27	12	light breeze
28	12	light breeze
29	12	light breeze
30	12	light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 30 min at the start of April to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 102 minutes over April. Sunrise moves from 6:40 AM to 5:42 AM, and sunset from 7:13 PM to 7:56 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)	12.5	12.6	12.7	12.7	12.8	12.8	12.9	13.0	13.0	13.1	13.1	13.2	13.3	13.3	13.4	13.4	13.5	13.6	13.6	13.7	13.7	13.8	13.8	13.9	14.0	14.0	14.1	14.1	14.2	14.2
Sunrise (AM)	6:40	6:38	6:36	6:34	6:32	6:30	6:28	6:26	6:23	6:21	6:19	6:17	6:15	6:13	6:11	6:09	6:07	6:05	6:03	6:01	5:59	5:57	5:55	5:53	5:51	5:49	5:48	5:46	5:44	5:42
Sunset (PM)	7:13	7:14	7:16	7:17	7:19	7:20	7:22	7:23	7:25	7:26	7:28	7:29	7:31	7:32	7:34	7:35	7:37	7:38	7:40	7:41	7:43	7:44	7:46	7:47	7:49	7:50	7:52	7:53	7:55	7:56

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.5	6:40	7:13
2	12.6	6:38	7:14
3	12.7	6:36	7:16
4	12.7	6:34	7:17
5	12.8	6:32	7:19
6	12.8	6:30	7:20
7	12.9	6:28	7:22
8	13.0	6:26	7:23
9	13.0	6:23	7:25
10	13.1	6:21	7:26
11	13.1	6:19	7:28
12	13.2	6:17	7:29
13	13.3	6:15	7:31
14	13.3	6:13	7:32
15	13.4	6:11	7:34
16	13.4	6:09	7:35
17	13.5	6:07	7:37
18	13.6	6:05	7:38
19	13.6	6:03	7:40
20	13.7	6:01	7:41
21	13.7	5:59	7:43
22	13.8	5:57	7:44
23	13.8	5:55	7:46
24	13.9	5:53	7:47
25	14.0	5:51	7:49
26	14.0	5:49	7:50
27	14.1	5:48	7:52
28	14.1	5:46	7:53
29	14.2	5:44	7:55
30	14.2	5:42	7:56

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.49 kWh/m².

For context, solar energy here swings from a low near 0.79 kWh/m² to a high of 5.58 kWh/m² in June across the year — April's 4.49 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
Solar energy (kWh/m²)	3.8	3.9	3.9	4.0	4.0	4.1	4.2	4.2	4.3	4.3	4.4	4.4	4.5	4.5	4.6	4.6	4.6	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.8	4.8
Level	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	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	3.8	Moderate
2	3.9	Moderate
3	3.9	Moderate
4	4.0	Moderate
5	4.0	Bright
6	4.1	Bright
7	4.2	Bright
8	4.2	Bright
9	4.3	Bright
10	4.3	Bright
11	4.4	Bright
12	4.4	Bright
13	4.5	Bright
14	4.5	Bright
15	4.6	Bright
16	4.6	Bright
17	4.6	Bright
18	4.7	Bright
19	4.7	Bright
20	4.7	Bright
21	4.7	Bright
22	4.7	Bright
23	4.7	Bright
24	4.7	Bright
25	4.7	Bright
26	4.7	Bright
27	4.7	Bright
28	4.7	Bright
29	4.8	Bright
30	4.8	Bright

Planning a trip in April

Is April a good time to visit Saint-Quentin-en-Yvelines?

Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.3

Sightseeing

7th-best month of the year

0.3

Beach & pool

7th-best month of the year

April is a reasonable time to visit Saint-Quentin-en-Yvelines for sightseeing.

What to pack for Saint-Quentin-en-Yvelines in April

From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In April, Saint-Quentin-en-Yvelines sees daytime highs around 15°C and nights near 6°C. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

UV index in Saint-Quentin-en-Yvelines in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Saint-Quentin-en-Yvelines peaks around June 22 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 7 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	7	7	4	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	7	High
Aug	7	High
Sep	4	Moderate
Oct	3	Moderate
Nov	1	Low
Dec	1	Low

Air quality in Saint-Quentin-en-Yvelines in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Saint-Quentin-en-Yvelines is worst in April — around 20 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	17	17	20	20	17	16	13	14	15	15	15	15
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	17	Moderate
Feb	17	Moderate
Mar	20	Moderate
Apr	20	Moderate
May	17	Moderate
Jun	16	Moderate
Jul	13	Moderate
Aug	14	Moderate
Sep	15	Moderate
Oct	15	Moderate
Nov	15	Moderate
Dec	15	Moderate

Location & terrain

Where is Saint-Quentin-en-Yvelines?

Saint-Quentin-en-Yvelines sits at 48.8°N, 2.0°E, 166 m above sea level, in France. The nearest listed city is Trappes, 0.0 km away.

Topography around Saint-Quentin-en-Yvelines

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint-Quentin-en-Yvelines.

Within 3 km, the terrain around Saint-Quentin-en-Yvelines has only modest variations in elevation — a maximum elevation change of 83 m around an average of 167 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 208 m; within 80 km, significant variations in elevation — a maximum elevation change of 297 m.

The land around Saint-Quentin-en-Yvelines is covered by trees (42%) and artificial surfaces (36%) within 3 km, trees (48%) and cropland (27%) within 16 km, and cropland (56%) and trees (30%) within 80 km.

3 km

83 m

trees 42%

16 km

208 m

trees 48%

80 km

297 m

cropland 56%

treesgrasslandcroplandartificial surfaceswater

← March Saint-Quentin-en-Yvelines year-round climate May →Best places to visit in April

April weather nearby: Trappes 0.0 km · Montigny-le-Bretonneux 1.0 km · Guyancourt 4.0 km · Saint-Cyr-l'École 5.0 km · Élancourt 5.0 km · Les Clayes-sous-Bois 6.0 km · Maurepas 7.0 km · Plaisir 7.0 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 Saint-Quentin-en-Yvelines (48.7719°, 2.0189°, elevation 166 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. 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).

	Avg high (°C)	Avg low (°C)
1	13	5
2	13	5
3	13	5
4	14	5
5	14	5
6	14	5
7	14	5
8	14	5
9	14	5
10	14	5
11	14	5
12	14	5
13	15	5
14	15	5
15	15	5
16	15	6
17	15	6
18	15	6
19	15	6
20	16	6
21	16	6
22	16	6
23	16	7
24	16	7
25	16	7
26	16	7
27	16	7
28	16	7
29	16	7
30	17	8

	Clearer (%)	Cloudier (%)
1	36	64
2	36	64
3	36	64
4	36	64
5	37	63
6	37	63
7	38	62
8	37	63
9	37	63
10	38	62
11	38	62
12	39	61
13	39	61
14	39	61
15	39	61
16	38	62
17	39	61
18	38	62
19	36	64
20	36	64
21	35	65
22	35	65
23	33	67
24	32	68
25	31	69
26	31	69
27	29	71
28	28	72
29	27	73
30	27	73

	Rain chance (%)
1	35
2	35
3	34
4	34
5	33
6	33
7	33
8	32
9	32
10	32
11	31
12	31
13	31
14	31
15	32
16	32
17	33
18	34
19	35
20	36
21	37
22	39
23	40
24	41
25	41
26	42
27	42
28	43
29	43
30	44

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	98	2
28	98	2
29	98	2
30	97	3

	Avg high (°C)	Avg low (°C)
1	13	5
2	13	5
3	13	5
4	14	5
5	14	5
6	14	5
7	14	5
8	14	5
9	14	5
10	14	5
11	14	5
12	14	5
13	15	5
14	15	5
15	15	5
16	15	6
17	15	6
18	15	6
19	15	6
20	16	6
21	16	6
22	16	6
23	16	7
24	16	7
25	16	7
26	16	7
27	16	7
28	16	7
29	16	7
30	17	8

	Clearer (%)	Cloudier (%)
1	36	64
2	36	64
3	36	64
4	36	64
5	37	63
6	37	63
7	38	62
8	37	63
9	37	63
10	38	62
11	38	62
12	39	61
13	39	61
14	39	61
15	39	61
16	38	62
17	39	61
18	38	62
19	36	64
20	36	64
21	35	65
22	35	65
23	33	67
24	32	68
25	31	69
26	31	69
27	29	71
28	28	72
29	27	73
30	27	73

	Rain chance (%)
1	35
2	35
3	34
4	34
5	33
6	33
7	33
8	32
9	32
10	32
11	31
12	31
13	31
14	31
15	32
16	32
17	33
18	34
19	35
20	36
21	37
22	39
23	40
24	41
25	41
26	42
27	42
28	43
29	43
30	44

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	98	2
28	98	2
29	98	2
30	97	3

	Avg high (°C)	Avg low (°C)
1	13	5
2	13	5
3	13	5
4	14	5
5	14	5
6	14	5
7	14	5
8	14	5
9	14	5
10	14	5
11	14	5
12	14	5
13	15	5
14	15	5
15	15	5
16	15	6
17	15	6
18	15	6
19	15	6
20	16	6
21	16	6
22	16	6
23	16	7
24	16	7
25	16	7
26	16	7
27	16	7
28	16	7
29	16	7
30	17	8

	Clearer (%)	Cloudier (%)
1	36	64
2	36	64
3	36	64
4	36	64
5	37	63
6	37	63
7	38	62
8	37	63
9	37	63
10	38	62
11	38	62
12	39	61
13	39	61
14	39	61
15	39	61
16	38	62
17	39	61
18	38	62
19	36	64
20	36	64
21	35	65
22	35	65
23	33	67
24	32	68
25	31	69
26	31	69
27	29	71
28	28	72
29	27	73
30	27	73

	Rain chance (%)
1	35
2	35
3	34
4	34
5	33
6	33
7	33
8	32
9	32
10	32
11	31
12	31
13	31
14	31
15	32
16	32
17	33
18	34
19	35
20	36
21	37
22	39
23	40
24	41
25	41
26	42
27	42
28	43
29	43
30	44

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	98	2
28	98	2
29	98	2
30	97	3