Chisasa weather in April

In April, Chisasa sees average daytime highs of 27°C and overnight lows near 16°C, with 60 mm of rain across 10.3 wet days and about 11.7 hours of daylight. It is the 6th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 25% of the time in April, and the air most often feels humid.

Daylight stretches from about 11 h 54 min at the start of April to 11 h 36 min by month's end. Set against the rest of the year, April is Chisasa's 7th-clearest and 6th-windiest month. For the whole year in context, see Chisasa's year-round climate.

Daytime high: 27°; 6th warmest
Overnight low: 16°; 5th coldest
Rainfall: 60 mm; 10.3 wet days
Daylight: 11 h 42 min; 6:26 AM – 6:10 PM
Cloud cover: 60%; 7th clearest
Wind: 9 km/h; 6th windiest
Solar energy: 5.49 kWh/m²
Travel score: 6.4; out of 10

← March Chisasa 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

Day-to-day highs hold fairly steady near 27°C through the month.

A typical April day in Chisasa reaches about 27°C in the afternoon and slips back to 16°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 28°C. Set against its neighbours, April runs on par with March and on par with 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)	26	26	26	26	26	26	26	26	26	26	26	26	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27
Avg low (°C)	17	17	17	17	17	17	17	17	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16

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

Chisasa weather by month

How April compares with the rest of the year at a glance. April is the 6th-warmest and 6th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	26° / 17°	285	29	12.6	3.6
Feb	26° / 17°	238	25.1	12.4	3.8
Mar	27° / 17°	230	25.7	12.1	4.2
Apr	27° / 16°	60	10.3	11.7	6.4
May	27° / 15°	4	0.9	11.5	8.2
Jun	26° / 13°	0	0.1	11.3	9.0
Jul	26° / 12°	0	0	11.4	9.1
Aug	29° / 15°	0	0	11.6	7.6
Sep	31° / 17°	5	1.4	11.9	5.6
Oct	31° / 18°	49	8.6	12.3	4.7
Nov	28° / 17°	193	23.8	12.6	4.0
Dec	26° / 17°	283	28.8	12.7	3.6

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 26% of April, with mostly cloudy or overcast conditions the remaining 50%. 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	32	33	33	34	35	36	37	39	41	41	45	46	48	51	52	54	56	57	59	60	62	63	64	66	66	67	68	69	70
Cloudier (%)	68	68	67	67	66	65	64	63	61	59	59	55	54	52	49	48	46	44	43	41	40	38	37	36	34	34	33	32	31	30

	Clearer (%)	Cloudier (%)
1	32	68
2	32	68
3	33	67
4	33	67
5	34	66
6	35	65
7	36	64
8	37	63
9	39	61
10	41	59
11	41	59
12	45	55
13	46	54
14	48	52
15	51	49
16	52	48
17	54	46
18	56	44
19	57	43
20	59	41
21	60	40
22	62	38
23	63	37
24	64	36
25	66	34
26	66	34
27	67	33
28	68	32
29	69	31
30	70	30

Chance of precipitation in April

Any precipitation

Chisasa gets around 60 mm of rain over 10.3 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 35% and peaks near 67% 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 (%)	67	65	63	61	58	56	54	52	50	47	45	43	40	38	35	33	30	28	26	23	21	19	18	16	14	13	12	11	10	9

	Rain chance (%)
1	67
2	65
3	63
4	61
5	58
6	56
7	54
8	52
9	50
10	47
11	45
12	43
13	40
14	38
15	35
16	33
17	30
18	28
19	26
20	23
21	21
22	19
23	18
24	16
25	14
26	13
27	12
28	11
29	10
30	9

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the humid band about 45% 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 (%)	2	2	3	3	3	4	4	4	5	6	7	8	10	11	13	15	17	19	22	25	28	31	34	37	40	43	46	49	51	53
Comfortable (%)	15	17	18	20	22	24	25	27	29	30	32	33	34	35	36	36	37	37	38	38	38	37	37	36	36	35	35	34	33	32
Humid (%)	74	73	71	70	69	66	66	64	61	59	57	55	52	50	47	45	42	40	37	35	32	30	27	25	23	21	19	17	15	14
Muggy (%)	9	8	8	7	6	6	5	5	5	5	4	4	4	4	4	4	4	3	3	3	3	2	2	2	2	1	1	1	1	1

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	2	15	74	9
2	2	17	73	8
3	3	18	71	8
4	3	20	70	7
5	3	22	69	6
6	4	24	66	6
7	4	25	66	5
8	4	27	64	5
9	5	29	61	5
10	6	30	59	5
11	7	32	57	4
12	8	33	55	4
13	10	34	52	4
14	11	35	50	4
15	13	36	47	4
16	15	36	45	4
17	17	37	42	4
18	19	37	40	3
19	22	38	37	3
20	25	38	35	3
21	28	38	32	3
22	31	37	30	2
23	34	37	27	2
24	37	36	25	2
25	40	36	23	2
26	43	35	21	1
27	46	35	19	1
28	49	34	17	1
29	51	33	15	1
30	53	32	14	1

Wind in April

Winds average 9 km/h in April.

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

Sunrise & sunset in April

DaylightNight

Daylight runs from about 11 h 54 min at the start of April to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over April. Sunrise moves from 6:26 AM to 6:28 AM, and sunset from 6:20 PM to 6:03 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)	11.9	11.9	11.9	11.9	11.9	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.6	11.6	11.6	11.6	11.6	11.6	11.6
Sunrise (AM)	6:26	6:26	6:26	6:26	6:26	6:26	6:26	6:26	6:26	6:26	6:26	6:26	6:26	6:26	6:26	6:26	6:26	6:26	6:27	6:27	6:27	6:27	6:27	6:27	6:27	6:27	6:27	6:28	6:28	6:28
Sunset (PM)	6:20	6:19	6:18	6:18	6:17	6:16	6:16	6:15	6:14	6:14	6:13	6:13	6:12	6:11	6:11	6:10	6:10	6:09	6:08	6:08	6:07	6:07	6:06	6:06	6:05	6:05	6:04	6:04	6:03	6:03

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.9	6:26	6:20
2	11.9	6:26	6:19
3	11.9	6:26	6:18
4	11.9	6:26	6:18
5	11.9	6:26	6:17
6	11.8	6:26	6:16
7	11.8	6:26	6:16
8	11.8	6:26	6:15
9	11.8	6:26	6:14
10	11.8	6:26	6:14
11	11.8	6:26	6:13
12	11.8	6:26	6:13
13	11.8	6:26	6:12
14	11.8	6:26	6:11
15	11.7	6:26	6:11
16	11.7	6:26	6:10
17	11.7	6:26	6:10
18	11.7	6:26	6:09
19	11.7	6:27	6:08
20	11.7	6:27	6:08
21	11.7	6:27	6:07
22	11.7	6:27	6:07
23	11.7	6:27	6:06
24	11.6	6:27	6:06
25	11.6	6:27	6:05
26	11.6	6:27	6:05
27	11.6	6:27	6:04
28	11.6	6:28	6:04
29	11.6	6:28	6:03
30	11.6	6:28	6:03

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.49 kWh/m².

For context, solar energy here swings from a low near 5.02 kWh/m² to a high of 6.7 kWh/m² in September across the year — April's 5.49 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)	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.4	5.4	5.4	5.4	5.4	5.5	5.5	5.5	5.5	5.6	5.6	5.6	5.6	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7
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	5.3	Bright
2	5.3	Bright
3	5.3	Bright
4	5.3	Bright
5	5.3	Bright
6	5.3	Bright
7	5.3	Bright
8	5.3	Bright
9	5.3	Bright
10	5.4	Bright
11	5.4	Bright
12	5.4	Bright
13	5.4	Bright
14	5.4	Bright
15	5.5	Bright
16	5.5	Bright
17	5.5	Bright
18	5.5	Bright
19	5.6	Bright
20	5.6	Bright
21	5.6	Bright
22	5.6	Bright
23	5.7	Bright
24	5.7	Bright
25	5.7	Bright
26	5.7	Bright
27	5.7	Bright
28	5.7	Bright
29	5.7	Bright
30	5.7	Bright

Planning a trip in April

Hazard calendar for Chisasa

In seasonPeak

None of Chisasa's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Chisasa's monsoon runs November–March, when most of the year's rain falls.

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is April a good time to visit Chisasa?

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

6.4

Sightseeing

5th-best month of the year

6.4

Beach & pool

7th-best month of the year

April is a reasonable time to visit Chisasa for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Chisasa in April

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

In April, Chisasa sees daytime highs around 27°C and nights near 16°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Chisasa in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chisasa peaks around January 18 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	17	15	15	13	10	9	10	10	12	13	13	14
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	17	Extreme
Feb	15	Extreme
Mar	15	Extreme
Apr	13	Extreme
May	10	Extreme
Jun	9	Very high
Jul	10	Very high
Aug	10	Extreme
Sep	12	Extreme
Oct	13	Extreme
Nov	13	Extreme
Dec	14	Extreme

Air quality in Chisasa 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 Chisasa is worst in August — around 80 µg/m³ PM2.5 (unhealthy), about 10.5× the cleanest month (April, 8 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)	10	10	8	8	9	26	60	80	52	28	12	8
Level	Good	Good	Good	Good	Good	Moderate	Unhealthy	Unhealthy	Poor	Moderate	Good	Good

	PM2.5 (µg/m³)	Level
Jan	10	Good
Feb	10	Good
Mar	8	Good
Apr	8	Good
May	9	Good
Jun	26	Moderate
Jul	60	Unhealthy
Aug	80	Unhealthy
Sep	52	Poor
Oct	28	Moderate
Nov	12	Good
Dec	8	Good

Location & terrain

Where is Chisasa?

Chisasa sits at 12.1°S, 25.5°E, 1,359 m above sea level, in Zambia. The nearest listed city is Manyama, 45 km away.

Topography around Chisasa

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

Within 3 km, the terrain around Chisasa has only modest variations in elevation — a maximum elevation change of 118 m around an average of 1,358 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 211 m; within 80 km, significant variations in elevation — a maximum elevation change of 496 m.

The land around Chisasa is covered by trees (47%) and grassland (30%) within 3 km, trees (70%) and grassland (23%) within 16 km, and trees (87%) within 80 km.

3 km

118 m

trees 47%

16 km

211 m

trees 70%

80 km

496 m

trees 87%

treesshrubsgrasslandcroplandartificial surfaceswaterwetland

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

April weather nearby: Manyama 45 km · Solwezi 97 km · Kansanshi 101 km · Mwinilunga 123 km · Mufumbwe 126 km · Kasempa 154 km · Kolwezi 155 km · Kambove 182 km

Zambia travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type C / D / G; 230 V · 50 Hz
Prices: ≈ 30% of US; price level, 2025
GDP per capita: $1,318; 2025
Happiness: 4.1 / 10; World Happiness, 2025
Homicide rate: 5.2; per 100k, 2015
Road deaths: 20.5; per 100k/yr, 2019
Income group: Lower middle; World Bank
English: High; EF EPI 573
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 Chisasa (-12.1093°, 25.4961°, elevation 1,359 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	26	17
2	26	17
3	26	17
4	26	17
5	26	17
6	26	17
7	26	17
8	26	17
9	26	16
10	26	16
11	26	16
12	26	16
13	27	16
14	27	16
15	27	16
16	27	16
17	27	16
18	27	16
19	27	16
20	27	16
21	27	16
22	27	16
23	27	16
24	27	16
25	27	16
26	27	16
27	27	16
28	27	16
29	27	16
30	27	16

	Clearer (%)	Cloudier (%)
1	32	68
2	32	68
3	33	67
4	33	67
5	34	66
6	35	65
7	36	64
8	37	63
9	39	61
10	41	59
11	41	59
12	45	55
13	46	54
14	48	52
15	51	49
16	52	48
17	54	46
18	56	44
19	57	43
20	59	41
21	60	40
22	62	38
23	63	37
24	64	36
25	66	34
26	66	34
27	67	33
28	68	32
29	69	31
30	70	30

	Rain chance (%)
1	67
2	65
3	63
4	61
5	58
6	56
7	54
8	52
9	50
10	47
11	45
12	43
13	40
14	38
15	35
16	33
17	30
18	28
19	26
20	23
21	21
22	19
23	18
24	16
25	14
26	13
27	12
28	11
29	10
30	9

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	2	15	74	9
2	2	17	73	8
3	3	18	71	8
4	3	20	70	7
5	3	22	69	6
6	4	24	66	6
7	4	25	66	5
8	4	27	64	5
9	5	29	61	5
10	6	30	59	5
11	7	32	57	4
12	8	33	55	4
13	10	34	52	4
14	11	35	50	4
15	13	36	47	4
16	15	36	45	4
17	17	37	42	4
18	19	37	40	3
19	22	38	37	3
20	25	38	35	3
21	28	38	32	3
22	31	37	30	2
23	34	37	27	2
24	37	36	25	2
25	40	36	23	2
26	43	35	21	1
27	46	35	19	1
28	49	34	17	1
29	51	33	15	1
30	53	32	14	1

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

	Clearer (%)	Cloudier (%)
1	32	68
2	32	68
3	33	67
4	33	67
5	34	66
6	35	65
7	36	64
8	37	63
9	39	61
10	41	59
11	41	59
12	45	55
13	46	54
14	48	52
15	51	49
16	52	48
17	54	46
18	56	44
19	57	43
20	59	41
21	60	40
22	62	38
23	63	37
24	64	36
25	66	34
26	66	34
27	67	33
28	68	32
29	69	31
30	70	30

	Rain chance (%)
1	67
2	65
3	63
4	61
5	58
6	56
7	54
8	52
9	50
10	47
11	45
12	43
13	40
14	38
15	35
16	33
17	30
18	28
19	26
20	23
21	21
22	19
23	18
24	16
25	14
26	13
27	12
28	11
29	10
30	9

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	2	15	74	9
2	2	17	73	8
3	3	18	71	8
4	3	20	70	7
5	3	22	69	6
6	4	24	66	6
7	4	25	66	5
8	4	27	64	5
9	5	29	61	5
10	6	30	59	5
11	7	32	57	4
12	8	33	55	4
13	10	34	52	4
14	11	35	50	4
15	13	36	47	4
16	15	36	45	4
17	17	37	42	4
18	19	37	40	3
19	22	38	37	3
20	25	38	35	3
21	28	38	32	3
22	31	37	30	2
23	34	37	27	2
24	37	36	25	2
25	40	36	23	2
26	43	35	21	1
27	46	35	19	1
28	49	34	17	1
29	51	33	15	1
30	53	32	14	1

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

	Clearer (%)	Cloudier (%)
1	32	68
2	32	68
3	33	67
4	33	67
5	34	66
6	35	65
7	36	64
8	37	63
9	39	61
10	41	59
11	41	59
12	45	55
13	46	54
14	48	52
15	51	49
16	52	48
17	54	46
18	56	44
19	57	43
20	59	41
21	60	40
22	62	38
23	63	37
24	64	36
25	66	34
26	66	34
27	67	33
28	68	32
29	69	31
30	70	30

	Rain chance (%)
1	67
2	65
3	63
4	61
5	58
6	56
7	54
8	52
9	50
10	47
11	45
12	43
13	40
14	38
15	35
16	33
17	30
18	28
19	26
20	23
21	21
22	19
23	18
24	16
25	14
26	13
27	12
28	11
29	10
30	9

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	2	15	74	9
2	2	17	73	8
3	3	18	71	8
4	3	20	70	7
5	3	22	69	6
6	4	24	66	6
7	4	25	66	5
8	4	27	64	5
9	5	29	61	5
10	6	30	59	5
11	7	32	57	4
12	8	33	55	4
13	10	34	52	4
14	11	35	50	4
15	13	36	47	4
16	15	36	45	4
17	17	37	42	4
18	19	37	40	3
19	22	38	37	3
20	25	38	35	3
21	28	38	32	3
22	31	37	30	2
23	34	37	27	2
24	37	36	25	2
25	40	36	23	2
26	43	35	21	1
27	46	35	19	1
28	49	34	17	1
29	51	33	15	1
30	53	32	14	1