Delta weather in April

In April, Delta sees average daytime highs of 13°C and overnight lows near 7°C, with 109 mm of rain across 13.7 wet days and about 13.4 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 12°C in the first days to 15°C 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 30 min at the start of April to 14 h 18 min by month's end. Set against the rest of the year, April is Delta's 7th-clearest and 6th-windiest month. For the whole year in context, see Delta's year-round climate.

Daytime high: 13°; 7th warmest
Overnight low: 7°; 6th coldest
Rainfall: 109 mm; 13.7 wet days
Daylight: 13 h 30 min; 5:29 AM – 6:56 PM
Cloud cover: 67%; 7th clearest
Wind: 10 km/h; 6th windiest
Solar energy: 4.6 kWh/m²
Travel score: 3.3; out of 10

Air quality: Excellent; PM2.5 5 µg/m³ · 2019

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

← March Delta 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 12°C in the first days to 15°C by the end.

A typical April day in Delta reaches about 13°C in the afternoon and slips back to 7°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 17°C. Set against its neighbours, April runs about 3°C warmer than March and about 4°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)	12	12	12	12	12	12	12	12	12	12	13	13	13	13	13	13	13	13	14	14	14	14	14	14	14	14	15	15	15	15
Avg low (°C)	6	6	6	6	6	6	6	6	6	6	6	6	7	7	7	7	7	7	7	7	7	7	7	8	8	8	8	8	8	8

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

How April really feels in Delta

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.

Delta 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 (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	7° / 3°	209	18	2.8	8.5	0.6
Feb	8° / 3°	124	14	2.2	9.8	1.2
Mar	10° / 5°	156	17.3	1	11.6	2.0
Apr	13° / 7°	109	13.7	0	13.4	3.3
May	17° / 10°	69	10.1	0	15	5.3
Jun	19° / 12°	49	8.2	0	15.9	6.4
Jul	22° / 14°	28	4.6	0	15.6	7.8
Aug	22° / 14°	41	4.9	0	14.2	7.8
Sep	19° / 12°	73	8.3	0	12.4	6.5
Oct	14° / 8°	155	14.4	0	10.5	3.6
Nov	9° / 5°	232	18.4	1.1	8.9	1.5
Dec	7° / 3°	198	17.7	3.2	8.1	0.5

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 14% of April, with mostly cloudy or overcast conditions the remaining 64%. 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
Clearer (%)	32	31	31	32	31	31	31	31	31	31	31	32	33	33	34	36	37	37	37	38	40	40	40	41	41	41	41	42	43	43
Cloudier (%)	68	69	69	68	69	69	69	69	69	69	69	68	67	67	66	64	63	63	63	62	60	60	60	59	59	59	59	58	57	57

	Clearer (%)	Cloudier (%)
1	32	68
2	31	69
3	31	69
4	32	68
5	31	69
6	31	69
7	31	69
8	31	69
9	31	69
10	31	69
11	31	69
12	32	68
13	33	67
14	33	67
15	34	66
16	36	64
17	37	63
18	37	63
19	37	63
20	38	62
21	40	60
22	40	60
23	40	60
24	41	59
25	41	59
26	41	59
27	41	59
28	42	58
29	43	57
30	43	57

Chance of precipitation in April

Any precipitation

Delta gets around 109 mm of rain over 13.7 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 46% and peaks near 50% on the wettest days. The odds ease 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 (%)	50	49	49	49	49	49	49	49	49	49	49	48	48	48	47	47	46	46	45	45	44	43	43	42	42	41	41	41	40	39

	Rain chance (%)
1	50
2	49
3	49
4	49
5	49
6	49
7	49
8	49
9	49
10	49
11	49
12	48
13	48
14	48
15	47
16	47
17	46
18	46
19	45
20	45
21	44
22	43
23	43
24	42
25	42
26	41
27	41
28	41
29	40
30	39

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	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

Wind in April

Winds average 10 km/h in April.

Across April, daily wind ranges from about 10 km/h on the calmest days to 11 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)	11	11	11	11	11	11	11	11	11	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10
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 (km/h)	Feels
1	11	calm
2	11	calm
3	11	calm
4	11	calm
5	11	calm
6	11	calm
7	11	calm
8	11	calm
9	11	calm
10	10	calm
11	10	calm
12	10	calm
13	10	calm
14	10	calm
15	10	calm
16	10	calm
17	10	calm
18	10	calm
19	10	calm
20	10	calm
21	10	calm
22	10	calm
23	10	calm
24	10	calm
25	10	calm
26	10	calm
27	10	calm
28	10	calm
29	10	calm
30	10	calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 30 min at the start of April to 14 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 108 minutes over April. Sunrise moves from 6:01 AM to 5:02 AM, and sunset from 6:33 PM to 7:17 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	12.9	12.9	13.0	13.0	13.1	13.2	13.2	13.3	13.3	13.4	13.5	13.5	13.6	13.6	13.7	13.8	13.8	13.9	13.9	14.0	14.0	14.1	14.1	14.2	14.3
Sunrise (AM)	6:01	5:58	5:56	5:54	5:52	5:50	5:48	5:46	5:43	5:41	5:39	5:37	5:35	5:33	5:31	5:29	5:27	5:25	5:23	5:21	5:19	5:17	5:15	5:13	5:11	5:09	5:07	5:05	5:04	5:02
Sunset (PM)	6:33	6:35	6:36	6:38	6:39	6:41	6:42	6:44	6:45	6:47	6:48	6:50	6:52	6:53	6:55	6:56	6:58	6:59	7:01	7:02	7:04	7:05	7:07	7:08	7:10	7:11	7:13	7:14	7:16	7:17

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.5	6:01	6:33
2	12.6	5:58	6:35
3	12.7	5:56	6:36
4	12.7	5:54	6:38
5	12.8	5:52	6:39
6	12.9	5:50	6:41
7	12.9	5:48	6:42
8	13.0	5:46	6:44
9	13.0	5:43	6:45
10	13.1	5:41	6:47
11	13.2	5:39	6:48
12	13.2	5:37	6:50
13	13.3	5:35	6:52
14	13.3	5:33	6:53
15	13.4	5:31	6:55
16	13.5	5:29	6:56
17	13.5	5:27	6:58
18	13.6	5:25	6:59
19	13.6	5:23	7:01
20	13.7	5:21	7:02
21	13.8	5:19	7:04
22	13.8	5:17	7:05
23	13.9	5:15	7:07
24	13.9	5:13	7:08
25	14.0	5:11	7:10
26	14.0	5:09	7:11
27	14.1	5:07	7:13
28	14.1	5:05	7:14
29	14.2	5:04	7:16
30	14.3	5:02	7:17

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.6 kWh/m².

For context, solar energy here swings from a low near 0.81 kWh/m² to a high of 6.63 kWh/m² in July across the year — April's 4.6 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)	3.9	3.9	4.0	4.0	4.0	4.1	4.1	4.2	4.2	4.3	4.3	4.4	4.5	4.5	4.6	4.6	4.7	4.7	4.8	4.9	4.9	5.0	5.0	5.1	5.1	5.2	5.2	5.3	5.3	5.4
Level	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	Bright

	Solar energy (kWh/m²)	Level
1	3.9	Moderate
2	3.9	Moderate
3	4.0	Moderate
4	4.0	Bright
5	4.0	Bright
6	4.1	Bright
7	4.1	Bright
8	4.2	Bright
9	4.2	Bright
10	4.3	Bright
11	4.3	Bright
12	4.4	Bright
13	4.5	Bright
14	4.5	Bright
15	4.6	Bright
16	4.6	Bright
17	4.7	Bright
18	4.7	Bright
19	4.8	Bright
20	4.9	Bright
21	4.9	Bright
22	5.0	Bright
23	5.0	Bright
24	5.1	Bright
25	5.1	Bright
26	5.2	Bright
27	5.2	Bright
28	5.3	Bright
29	5.3	Bright
30	5.4	Bright

Planning a trip in April

Hazard calendar for Delta

In seasonPeak

In April, Delta sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Delta's rainy season runs October–April, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is April a good time to visit Delta?

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

3.3

Sightseeing

7th-best month of the year

0.0

Beach & pool

7th-best month of the year

April is a weaker month for outdoor sightseeing in Delta.

What to pack for Delta in April

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

In April, Delta sees daytime highs around 13°C and nights near 7°C. Pack rain gear. Worth having: a warm layer and sun protection. About 14 days see rain.

rain geara warm layersun protection

Sea temperature near Delta in April

The nearest coast averages about 10°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 16°C and coldest in January near 7°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)	7	7	8	10	12	14	16	16	14	11	9	8
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Cool	Bracing	Bracing	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	7	Bracing
Feb	7	Bracing
Mar	8	Bracing
Apr	10	Bracing
May	12	Bracing
Jun	14	Bracing
Jul	16	Cool
Aug	16	Cool
Sep	14	Bracing
Oct	11	Bracing
Nov	9	Bracing
Dec	8	Bracing

UV index in Delta in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Delta peaks around July 17 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 18 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	1	3	4	7	6	8	6	4	3	1	1
Level	Low	Low	Moderate	Moderate	High	High	Very high	High	Moderate	Moderate	Low	Low

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

Location & terrain

Where is Delta?

Delta sits at 49.1°N, 123.1°W, 4 m above sea level, in Canada. The nearest listed city is Ladner, 2.0 km away.

Topography around Delta

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Delta.

Within 3 km, the terrain around Delta has only modest variations in elevation — a maximum elevation change of 36 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 175 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,518 m.

The land around Delta is covered by grassland (40%) and cropland (25%) within 3 km, water (46%) within 16 km, and trees (51%) and water (35%) within 80 km.

3 km

36 m

grassland 40%

16 km

175 m

water 46%

80 km

2,518 m

trees 51%

treesgrasslandcroplandartificial surfacesbare terrainwaterwetland

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

April weather nearby: Ladner 2.0 km · Tsawwassen 8.0 km · Broadmoor 9.0 km · Steveston 10 km · Brighouse-City Centre 10 km · Blundell 11 km · Richmond 11 km · Seafair 12 km

Canada travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type A / B; 120 V · 60 Hz
Prices: ≈ 83% of US; price level, 2025
GDP per capita: $55,698; 2025
Happiness: 6.7 / 10; World Happiness, 2025
Safe drinking water: 97%; of population, 2024
Homicide rate: 2; per 100k, 2023
Road deaths: 5.3; 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 Delta (49.0892°, -123.0532°, elevation 4 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. 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	12	6
2	12	6
3	12	6
4	12	6
5	12	6
6	12	6
7	12	6
8	12	6
9	12	6
10	12	6
11	13	6
12	13	6
13	13	7
14	13	7
15	13	7
16	13	7
17	13	7
18	13	7
19	14	7
20	14	7
21	14	7
22	14	7
23	14	7
24	14	8
25	14	8
26	14	8
27	15	8
28	15	8
29	15	8
30	15	8

	Clearer (%)	Cloudier (%)
1	32	68
2	31	69
3	31	69
4	32	68
5	31	69
6	31	69
7	31	69
8	31	69
9	31	69
10	31	69
11	31	69
12	32	68
13	33	67
14	33	67
15	34	66
16	36	64
17	37	63
18	37	63
19	37	63
20	38	62
21	40	60
22	40	60
23	40	60
24	41	59
25	41	59
26	41	59
27	41	59
28	42	58
29	43	57
30	43	57

	Rain chance (%)
1	50
2	49
3	49
4	49
5	49
6	49
7	49
8	49
9	49
10	49
11	49
12	48
13	48
14	48
15	47
16	47
17	46
18	46
19	45
20	45
21	44
22	43
23	43
24	42
25	42
26	41
27	41
28	41
29	40
30	39

	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

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

	Clearer (%)	Cloudier (%)
1	32	68
2	31	69
3	31	69
4	32	68
5	31	69
6	31	69
7	31	69
8	31	69
9	31	69
10	31	69
11	31	69
12	32	68
13	33	67
14	33	67
15	34	66
16	36	64
17	37	63
18	37	63
19	37	63
20	38	62
21	40	60
22	40	60
23	40	60
24	41	59
25	41	59
26	41	59
27	41	59
28	42	58
29	43	57
30	43	57

	Rain chance (%)
1	50
2	49
3	49
4	49
5	49
6	49
7	49
8	49
9	49
10	49
11	49
12	48
13	48
14	48
15	47
16	47
17	46
18	46
19	45
20	45
21	44
22	43
23	43
24	42
25	42
26	41
27	41
28	41
29	40
30	39

	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

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

	Clearer (%)	Cloudier (%)
1	32	68
2	31	69
3	31	69
4	32	68
5	31	69
6	31	69
7	31	69
8	31	69
9	31	69
10	31	69
11	31	69
12	32	68
13	33	67
14	33	67
15	34	66
16	36	64
17	37	63
18	37	63
19	37	63
20	38	62
21	40	60
22	40	60
23	40	60
24	41	59
25	41	59
26	41	59
27	41	59
28	42	58
29	43	57
30	43	57

	Rain chance (%)
1	50
2	49
3	49
4	49
5	49
6	49
7	49
8	49
9	49
10	49
11	49
12	48
13	48
14	48
15	47
16	47
17	46
18	46
19	45
20	45
21	44
22	43
23	43
24	42
25	42
26	41
27	41
28	41
29	40
30	39

	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