Rotterdam weather in April

In April, Rotterdam sees average daytime highs of 56°F and overnight lows near 38°F, with 4.1 in of precipitation across 12 wet days and about 13.1 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 51°F in the first days to 62°F by the end. The sky is clear or mostly clear about 22% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of April to 13 h 48 min by month's end. Set against the rest of the year, April is Rotterdam's 9th-clearest and 4th-windiest month. For the whole year in context, see Rotterdam's year-round climate.

Daytime high: 56°; 7th warmest
Overnight low: 38°; 6th coldest
Precipitation: 4.1 in; 12 wet days
Daylight: 13 h 12 min; 5:21 AM – 6:31 PM
Cloud cover: 67%; 9th clearest
Wind: 7 mph; 4th windiest
Solar energy: 4.83 kWh/m²
Travel score: 3.7; out of 10

Rotterdam is census-designated place in Schenectady County, New York, United States.

Density: 1,151/km²; people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← March Rotterdam 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 51°F in the first days to 62°F by the end.

A typical April day in Rotterdam reaches about 56°F in the afternoon and slips back to 38°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 44°F and 70°F. Set against its neighbours, April runs about 13°F warmer than March and about 11°F 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 (°F)	50	50	51	51	52	52	53	53	54	54	55	55	56	56	57	57	58	58	58	59	59	60	60	60	61	61	61	62	62	62
Avg low (°F)	33	33	33	34	34	35	35	35	36	36	36	37	37	37	38	38	38	39	39	40	40	40	41	41	41	42	42	42	43	43

	Avg high (°F)	Avg low (°F)
1	50	33
2	50	33
3	51	33
4	51	34
5	52	34
6	52	35
7	53	35
8	53	35
9	54	36
10	54	36
11	55	36
12	55	37
13	56	37
14	56	37
15	57	38
16	57	38
17	58	38
18	58	39
19	58	39
20	59	40
21	59	40
22	60	40
23	60	41
24	60	41
25	61	41
26	61	42
27	61	42
28	62	42
29	62	43
30	62	43

How April really feels in Rotterdam

Once humidity and wind are folded in, April averages 0 days that feel above 90°F and 14 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F

heat index over the day's high

Days feeling ≤ 32°F

wind chill below the day's low

The story in April is cold — wind chill drags the overnight "feels like" below the raw low.

Rotterdam weather by month

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

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	31° / 17°	3.0	9.8	7.1	9.2	0.0
Feb	34° / 18°	2.8	9	6.6	10.3	0.0
Mar	43° / 26°	3.8	11.2	5.3	11.6	0.6
Apr	56° / 38°	4.1	12	1.7	13.1	3.7
May	67° / 48°	4.1	12.5	0.1	14.4	5.8
Jun	76° / 57°	4.8	12.8	0	15.1	6.3
Jul	80° / 62°	4.4	12	0	14.8	6.2
Aug	79° / 60°	4.2	11.5	0	13.7	6.6
Sep	72° / 53°	4.2	9.6	0	12.3	6.7
Oct	59° / 42°	4.5	10.8	0.4	10.8	4.5
Nov	47° / 32°	3.3	9.8	2.1	9.6	1.5
Dec	36° / 23°	3.8	10.8	6.2	8.9	0.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 15% of April, with mostly cloudy or overcast conditions the remaining 63%.

	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 (%)	34	34	34	34	34	35	34	34	35	36	36	36	36	37	37	38	38	39	38	39	39	39	39	40	40	39	39	39	40	39
Cloudier (%)	66	66	66	66	66	65	66	66	65	64	64	64	64	63	63	62	62	61	62	61	61	61	61	60	60	61	61	61	60	61

	Clearer (%)	Cloudier (%)
1	34	66
2	34	66
3	34	66
4	34	66
5	34	66
6	35	65
7	34	66
8	34	66
9	35	65
10	36	64
11	36	64
12	36	64
13	36	64
14	37	63
15	37	63
16	38	62
17	38	62
18	39	61
19	38	62
20	39	61
21	39	61
22	39	61
23	39	61
24	40	60
25	40	60
26	39	61
27	39	61
28	39	61
29	40	60
30	39	61

Chance of precipitation in April

Any precipitationSnow

Rotterdam gets around 4.1 in of rain and snow over 12 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 40% and peaks near 41% on the wettest days, and about 2 days bring 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
Rain chance (%)	40	40	41	41	41	41	40	40	39	39	39	38	38	38	38	39	39	39	39	40	40	40	41	41	41	41	41	41	41	40
Snow chance (%)	10	10	10	9	9	9	8	8	8	7	7	7	6	6	5	5	5	4	4	4	4	3	3	3	2	2	2	2	1	1

	Rain chance (%)	Snow chance (%)
1	40	10
2	40	10
3	41	10
4	41	9
5	41	9
6	41	9
7	40	8
8	40	8
9	39	8
10	39	7
11	39	7
12	38	7
13	38	6
14	38	6
15	38	5
16	39	5
17	39	5
18	39	4
19	39	4
20	40	4
21	40	4
22	40	3
23	41	3
24	41	3
25	41	2
26	41	2
27	41	2
28	41	2
29	41	1
30	40	1

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 98% 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	99	99	99	99	99	98	98	98	98	98	97	97	97	97	97	97	97	96	96	96	95	95	95	94
Comfortable (%)	0	0	0	0	0	0	1	1	1	1	1	2	2	2	2	2	3	3	3	3	3	3	3	3	3	3	4	4	4	5
Humid (%)	0	0	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	1	1

	Dry (%)	Comfortable (%)	Humid (%)
1	100	0	0
2	100	0	0
3	100	0	0
4	100	0	0
5	100	0	0
6	100	0	0
7	99	1	0
8	99	1	0
9	99	1	0
10	99	1	0
11	99	1	0
12	98	2	0
13	98	2	0
14	98	2	0
15	98	2	0
16	98	2	0
17	97	3	0
18	97	3	0
19	97	3	0
20	97	3	0
21	97	3	0
22	97	3	0
23	97	3	0
24	96	3	1
25	96	3	1
26	96	3	1
27	95	4	1
28	95	4	1
29	95	4	1
30	94	5	1

Wind in April

Winds average 7 mph in April.

Across April, daily wind ranges from about 7 mph on the calmest days to 7 mph 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 (mph)	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

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

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 84 minutes over April. Sunrise moves from 5:47 AM to 4:59 AM, and sunset from 6:14 PM to 6:47 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)	12.4	12.5	12.5	12.6	12.6	12.7	12.7	12.8	12.8	12.9	12.9	13.0	13.0	13.1	13.1	13.2	13.2	13.3	13.3	13.4	13.4	13.4	13.5	13.5	13.6	13.6	13.7	13.7	13.8	13.8
Sunrise (AM)	5:47	5:46	5:44	5:42	5:40	5:39	5:37	5:35	5:33	5:31	5:30	5:28	5:26	5:25	5:23	5:21	5:19	5:18	5:16	5:15	5:13	5:11	5:10	5:08	5:07	5:05	5:04	5:02	5:01	4:59
Sunset (PM)	6:14	6:15	6:16	6:17	6:18	6:19	6:21	6:22	6:23	6:24	6:25	6:26	6:28	6:29	6:30	6:31	6:32	6:33	6:35	6:36	6:37	6:38	6:39	6:40	6:42	6:43	6:44	6:45	6:46	6:47

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.4	5:47	6:14
2	12.5	5:46	6:15
3	12.5	5:44	6:16
4	12.6	5:42	6:17
5	12.6	5:40	6:18
6	12.7	5:39	6:19
7	12.7	5:37	6:21
8	12.8	5:35	6:22
9	12.8	5:33	6:23
10	12.9	5:31	6:24
11	12.9	5:30	6:25
12	13.0	5:28	6:26
13	13.0	5:26	6:28
14	13.1	5:25	6:29
15	13.1	5:23	6:30
16	13.2	5:21	6:31
17	13.2	5:19	6:32
18	13.3	5:18	6:33
19	13.3	5:16	6:35
20	13.4	5:15	6:36
21	13.4	5:13	6:37
22	13.4	5:11	6:38
23	13.5	5:10	6:39
24	13.5	5:08	6:40
25	13.6	5:07	6:42
26	13.6	5:05	6:43
27	13.7	5:04	6:44
28	13.7	5:02	6:45
29	13.8	5:01	6:46
30	13.8	4:59	6:47

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.83 kWh/m².

For context, solar energy here swings from a low near 1.44 kWh/m² to a high of 5.93 kWh/m² in July across the year — April's 4.83 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)	4.3	4.3	4.4	4.4	4.5	4.5	4.6	4.6	4.7	4.7	4.7	4.8	4.8	4.8	4.9	4.9	4.9	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.1	5.1	5.1	5.1	5.1	5.2
Level	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	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.3	Bright
2	4.3	Bright
3	4.4	Bright
4	4.4	Bright
5	4.5	Bright
6	4.5	Bright
7	4.6	Bright
8	4.6	Bright
9	4.7	Bright
10	4.7	Bright
11	4.7	Bright
12	4.8	Bright
13	4.8	Bright
14	4.8	Bright
15	4.9	Bright
16	4.9	Bright
17	4.9	Bright
18	5.0	Bright
19	5.0	Bright
20	5.0	Bright
21	5.0	Bright
22	5.0	Bright
23	5.0	Bright
24	5.0	Bright
25	5.1	Bright
26	5.1	Bright
27	5.1	Bright
28	5.1	Bright
29	5.1	Bright
30	5.2	Bright

Planning a trip in April

Is April a good time to visit Rotterdam?

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

3.7

Sightseeing

7th-best month of the year

0.3

Beach & pool

7th-best month of the year

April is a weaker month for outdoor sightseeing in Rotterdam.

What to pack for Rotterdam in April

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

In April, Rotterdam sees daytime highs around 56°F and nights near 38°F. Worth packing: a warm layer, rain gear and sun protection. About 12 days see rain.

a warm layerrain gearsun protection

UV index in Rotterdam 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 Rotterdam peaks around July 12 at about 8 (very 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 8 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	2	4	5	7	7	8	5	6	3	2	1
Level	Low	Moderate	Moderate	High	Very high	Very high	Very high	Moderate	High	Moderate	Moderate	Low

	UV index (midday)	Level
Jan	1	Low
Feb	2	Moderate
Mar	4	Moderate
Apr	5	High
May	7	Very high
Jun	7	Very high
Jul	8	Very high
Aug	5	Moderate
Sep	6	High
Oct	3	Moderate
Nov	2	Moderate
Dec	1	Low

Location & terrain

Where is Rotterdam?

Rotterdam sits at 42.8°N, 74.0°W, 338 ft above sea level, in United States. The nearest listed city is Schenectady, 2.5 mi away.

Topography around Rotterdam

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Rotterdam.

Within 2 miles, the terrain around Rotterdam has only modest variations in elevation — a maximum elevation change of 220 ft around an average of 328 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,440 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,058 ft.

The land around Rotterdam is covered by trees (47%) and artificial surfaces (35%) within 2 miles, trees (72%) within 10 miles, and trees (83%) within 50 miles.

2 miles

220 ft

trees 47%

10 miles

1,440 ft

trees 72%

50 miles

4,058 ft

trees 83%

treesgrasslandcroplandartificial surfacesbare terrainwaterwetland

← March Rotterdam year-round climate May →Best places to visit in April

April weather nearby: Schenectady 2.5 mi · Glenville 11 mi · Latham 11 mi · Clifton Park 12 mi · West Albany 12 mi · Cohoes 14 mi · Albany 14 mi · Troy 15 mi

United States travel facts

Power plugs: Type A / B; 120 V · 60 Hz
Prices: ≈ 100% of US; price level, 2025
GDP per capita: $90,027; 2025
Happiness: 6.8 / 10; World Happiness, 2025
Safe drinking water: 98%; of population, 2024
Homicide rate: 5.8; per 100k, 2023
Road deaths: 12.7; per 100k/yr, 2019
Income group: High; World Bank
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 Rotterdam (42.787°, -73.971°, elevation 338 ft), 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. 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 (°F)	Avg low (°F)
1	50	33
2	50	33
3	51	33
4	51	34
5	52	34
6	52	35
7	53	35
8	53	35
9	54	36
10	54	36
11	55	36
12	55	37
13	56	37
14	56	37
15	57	38
16	57	38
17	58	38
18	58	39
19	58	39
20	59	40
21	59	40
22	60	40
23	60	41
24	60	41
25	61	41
26	61	42
27	61	42
28	62	42
29	62	43
30	62	43

	Clearer (%)	Cloudier (%)
1	34	66
2	34	66
3	34	66
4	34	66
5	34	66
6	35	65
7	34	66
8	34	66
9	35	65
10	36	64
11	36	64
12	36	64
13	36	64
14	37	63
15	37	63
16	38	62
17	38	62
18	39	61
19	38	62
20	39	61
21	39	61
22	39	61
23	39	61
24	40	60
25	40	60
26	39	61
27	39	61
28	39	61
29	40	60
30	39	61

	Rain chance (%)	Snow chance (%)
1	40	10
2	40	10
3	41	10
4	41	9
5	41	9
6	41	9
7	40	8
8	40	8
9	39	8
10	39	7
11	39	7
12	38	7
13	38	6
14	38	6
15	38	5
16	39	5
17	39	5
18	39	4
19	39	4
20	40	4
21	40	4
22	40	3
23	41	3
24	41	3
25	41	2
26	41	2
27	41	2
28	41	2
29	41	1
30	40	1

	Dry (%)	Comfortable (%)	Humid (%)
1	100	0	0
2	100	0	0
3	100	0	0
4	100	0	0
5	100	0	0
6	100	0	0
7	99	1	0
8	99	1	0
9	99	1	0
10	99	1	0
11	99	1	0
12	98	2	0
13	98	2	0
14	98	2	0
15	98	2	0
16	98	2	0
17	97	3	0
18	97	3	0
19	97	3	0
20	97	3	0
21	97	3	0
22	97	3	0
23	97	3	0
24	96	3	1
25	96	3	1
26	96	3	1
27	95	4	1
28	95	4	1
29	95	4	1
30	94	5	1

	Avg high (°F)	Avg low (°F)
1	50	33
2	50	33
3	51	33
4	51	34
5	52	34
6	52	35
7	53	35
8	53	35
9	54	36
10	54	36
11	55	36
12	55	37
13	56	37
14	56	37
15	57	38
16	57	38
17	58	38
18	58	39
19	58	39
20	59	40
21	59	40
22	60	40
23	60	41
24	60	41
25	61	41
26	61	42
27	61	42
28	62	42
29	62	43
30	62	43

	Clearer (%)	Cloudier (%)
1	34	66
2	34	66
3	34	66
4	34	66
5	34	66
6	35	65
7	34	66
8	34	66
9	35	65
10	36	64
11	36	64
12	36	64
13	36	64
14	37	63
15	37	63
16	38	62
17	38	62
18	39	61
19	38	62
20	39	61
21	39	61
22	39	61
23	39	61
24	40	60
25	40	60
26	39	61
27	39	61
28	39	61
29	40	60
30	39	61

	Rain chance (%)	Snow chance (%)
1	40	10
2	40	10
3	41	10
4	41	9
5	41	9
6	41	9
7	40	8
8	40	8
9	39	8
10	39	7
11	39	7
12	38	7
13	38	6
14	38	6
15	38	5
16	39	5
17	39	5
18	39	4
19	39	4
20	40	4
21	40	4
22	40	3
23	41	3
24	41	3
25	41	2
26	41	2
27	41	2
28	41	2
29	41	1
30	40	1

	Dry (%)	Comfortable (%)	Humid (%)
1	100	0	0
2	100	0	0
3	100	0	0
4	100	0	0
5	100	0	0
6	100	0	0
7	99	1	0
8	99	1	0
9	99	1	0
10	99	1	0
11	99	1	0
12	98	2	0
13	98	2	0
14	98	2	0
15	98	2	0
16	98	2	0
17	97	3	0
18	97	3	0
19	97	3	0
20	97	3	0
21	97	3	0
22	97	3	0
23	97	3	0
24	96	3	1
25	96	3	1
26	96	3	1
27	95	4	1
28	95	4	1
29	95	4	1
30	94	5	1

	Avg high (°F)	Avg low (°F)
1	50	33
2	50	33
3	51	33
4	51	34
5	52	34
6	52	35
7	53	35
8	53	35
9	54	36
10	54	36
11	55	36
12	55	37
13	56	37
14	56	37
15	57	38
16	57	38
17	58	38
18	58	39
19	58	39
20	59	40
21	59	40
22	60	40
23	60	41
24	60	41
25	61	41
26	61	42
27	61	42
28	62	42
29	62	43
30	62	43

	Clearer (%)	Cloudier (%)
1	34	66
2	34	66
3	34	66
4	34	66
5	34	66
6	35	65
7	34	66
8	34	66
9	35	65
10	36	64
11	36	64
12	36	64
13	36	64
14	37	63
15	37	63
16	38	62
17	38	62
18	39	61
19	38	62
20	39	61
21	39	61
22	39	61
23	39	61
24	40	60
25	40	60
26	39	61
27	39	61
28	39	61
29	40	60
30	39	61

	Rain chance (%)	Snow chance (%)
1	40	10
2	40	10
3	41	10
4	41	9
5	41	9
6	41	9
7	40	8
8	40	8
9	39	8
10	39	7
11	39	7
12	38	7
13	38	6
14	38	6
15	38	5
16	39	5
17	39	5
18	39	4
19	39	4
20	40	4
21	40	4
22	40	3
23	41	3
24	41	3
25	41	2
26	41	2
27	41	2
28	41	2
29	41	1
30	40	1

	Dry (%)	Comfortable (%)	Humid (%)
1	100	0	0
2	100	0	0
3	100	0	0
4	100	0	0
5	100	0	0
6	100	0	0
7	99	1	0
8	99	1	0
9	99	1	0
10	99	1	0
11	99	1	0
12	98	2	0
13	98	2	0
14	98	2	0
15	98	2	0
16	98	2	0
17	97	3	0
18	97	3	0
19	97	3	0
20	97	3	0
21	97	3	0
22	97	3	0
23	97	3	0
24	96	3	1
25	96	3	1
26	96	3	1
27	95	4	1
28	95	4	1
29	95	4	1
30	94	5	1