Serra Negra weather in August

In August, Serra Negra sees average daytime highs of 26°C and overnight lows near 14°C, with 31 mm of rain across 4 wet days and about 11.2 hours of daylight. It is the 9th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 25°C in the first days to 27°C by the end. The sky is clear or mostly clear about 64% of the time in August, and the air most often feels dry.

Daylight stretches from about 10 h 54 min at the start of August to 11 h 30 min by month's end. Set against the rest of the year, August is Serra Negra's 1st-clearest and 3rd-windiest month. For the whole year in context, see Serra Negra's year-round climate.

Daytime high: 26°; 9th warmest
Overnight low: 14°; 3rd coldest
Rainfall: 31 mm; 4 wet days
Daylight: 11 h 12 min; 7:34 AM – 6:47 PM
Cloud cover: 33%; 1st clearest
Wind: 8 km/h; 3rd windiest
Solar energy: 4.87 kWh/m²
Travel score: 8.0; out of 10

Serra Negra is human settlement in Brazil.

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

← July Serra Negra year-round climate September →Best places to visit in August

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 25°C in the first days to 27°C by the end.

A typical August day in Serra Negra reaches about 26°C in the afternoon and slips back to 14°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 30°C. Set against its neighbours, August runs about 2°C warmer than July and about 2°C cooler than September.

	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	31
Avg high (°C)	25	25	25	25	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	27	27	27	27	27	27	27	27	27	28	28	28
Avg low (°C)	13	13	13	13	13	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	15	15	15	15	15	15	15	15

	Avg high (°C)	Avg low (°C)
1	25	13
2	25	13
3	25	13
4	25	13
5	26	13
6	26	14
7	26	14
8	26	14
9	26	14
10	26	14
11	26	14
12	26	14
13	26	14
14	26	14
15	26	14
16	26	14
17	26	14
18	26	14
19	26	14
20	27	14
21	27	14
22	27	14
23	27	14
24	27	15
25	27	15
26	27	15
27	27	15
28	27	15
29	28	15
30	28	15
31	28	15

Serra Negra weather by month

How August compares with the rest of the year at a glance. August is the 9th-warmest and 12th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	29° / 20°	255	22.4	13.2	3.9
Feb	29° / 20°	175	18.4	12.8	4.2
Mar	29° / 19°	138	17.4	12.2	4.8
Apr	27° / 17°	70	8.7	11.5	6.7
May	25° / 15°	64	6.5	10.9	7.6
Jun	24° / 13°	43	4.6	10.6	8.2
Jul	25° / 13°	38	3.9	10.8	8.4
Aug	26° / 14°	31	4	11.2	8.0
Sep	28° / 16°	85	8.4	11.9	6.7
Oct	28° / 18°	123	13.5	12.5	5.3
Nov	28° / 19°	167	16.6	13.1	4.9
Dec	29° / 20°	210	20.4	13.4	4.3

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of August, with mostly cloudy or overcast conditions the remaining 25%.

	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	31
Clearer (%)	72	72	72	72	72	72	72	72	73	74	74	75	75	75	76	76	76	77	77	77	77	77	77	78	78	78	78	78	77	77	77
Cloudier (%)	28	28	28	28	28	28	28	28	27	26	26	25	25	25	24	24	24	23	23	23	23	23	23	22	22	22	22	22	23	23	23

	Clearer (%)	Cloudier (%)
1	72	28
2	72	28
3	72	28
4	72	28
5	72	28
6	72	28
7	72	28
8	72	28
9	73	27
10	74	26
11	74	26
12	75	25
13	75	25
14	75	25
15	76	24
16	76	24
17	76	24
18	77	23
19	77	23
20	77	23
21	77	23
22	77	23
23	77	23
24	78	22
25	78	22
26	78	22
27	78	22
28	78	22
29	77	23
30	77	23
31	77	23

Chance of precipitation in August

Any precipitation

Serra Negra gets around 31 mm of rain over 4 wet days in August, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 13% and peaks near 18% on the wettest days.

	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	31
Rain chance (%)	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	13	13	13	13	13	14	14	15	15	16	16	17	18	18

	Rain chance (%)
1	12
2	12
3	12
4	12
5	12
6	12
7	12
8	12
9	12
10	12
11	12
12	12
13	12
14	12
15	12
16	12
17	12
18	13
19	13
20	13
21	13
22	13
23	14
24	14
25	15
26	15
27	16
28	16
29	17
30	18
31	18

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 73% 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	31
Dry (%)	76	76	76	75	75	75	75	75	75	75	75	74	74	74	74	74	74	74	74	73	73	72	72	71	69	69	68	67	66	65	63
Comfortable (%)	20	20	20	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	22	22	23	23	24	25	25	26	26	27	27	28
Humid (%)	4	4	4	4	4	4	4	4	4	4	4	5	5	5	5	5	5	5	5	5	5	5	5	5	6	6	6	7	7	8	9

	Dry (%)	Comfortable (%)	Humid (%)
1	76	20	4
2	76	20	4
3	76	20	4
4	75	21	4
5	75	21	4
6	75	21	4
7	75	21	4
8	75	21	4
9	75	21	4
10	75	21	4
11	75	21	4
12	74	21	5
13	74	21	5
14	74	21	5
15	74	21	5
16	74	21	5
17	74	21	5
18	74	21	5
19	74	21	5
20	73	22	5
21	73	22	5
22	72	23	5
23	72	23	5
24	71	24	5
25	69	25	6
26	69	25	6
27	68	26	6
28	67	26	7
29	66	27	7
30	65	27	8
31	63	28	9

Wind in August

Winds average 8 km/h in August.

Across August, daily wind ranges from about 8 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	31
Wind speed (km/h)	8	8	8	8	8	8	8	8	8	8	8	8	8	8	9	9	9	9	9	9	9	8	8	8	8	8	8	8	8	8	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	calm

	Wind speed (km/h)	Feels
1	8	calm
2	8	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	8	calm
23	8	calm
24	8	calm
25	8	calm
26	8	calm
27	8	calm
28	8	calm
29	8	calm
30	8	calm
31	9	calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 10 h 54 min at the start of August to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over August. Sunrise moves from 7:44 AM to 7:21 AM, and sunset from 6:41 PM to 6:52 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	31
Daylight (h)	10.9	11.0	11.0	11.0	11.0	11.0	11.0	11.1	11.1	11.1	11.1	11.1	11.2	11.2	11.2	11.2	11.2	11.3	11.3	11.3	11.3	11.3	11.4	11.4	11.4	11.4	11.4	11.5	11.5	11.5	11.5
Sunrise (AM)	7:44	7:44	7:43	7:43	7:42	7:42	7:41	7:40	7:40	7:39	7:38	7:38	7:37	7:36	7:35	7:34	7:34	7:33	7:32	7:31	7:30	7:30	7:29	7:28	7:27	7:26	7:25	7:24	7:23	7:22	7:21
Sunset (PM)	6:41	6:42	6:42	6:43	6:43	6:43	6:44	6:44	6:45	6:45	6:45	6:46	6:46	6:47	6:47	6:47	6:48	6:48	6:48	6:49	6:49	6:49	6:50	6:50	6:50	6:51	6:51	6:51	6:52	6:52	6:52

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	10.9	7:44	6:41
2	11.0	7:44	6:42
3	11.0	7:43	6:42
4	11.0	7:43	6:43
5	11.0	7:42	6:43
6	11.0	7:42	6:43
7	11.0	7:41	6:44
8	11.1	7:40	6:44
9	11.1	7:40	6:45
10	11.1	7:39	6:45
11	11.1	7:38	6:45
12	11.1	7:38	6:46
13	11.2	7:37	6:46
14	11.2	7:36	6:47
15	11.2	7:35	6:47
16	11.2	7:34	6:47
17	11.2	7:34	6:48
18	11.3	7:33	6:48
19	11.3	7:32	6:48
20	11.3	7:31	6:49
21	11.3	7:30	6:49
22	11.3	7:30	6:49
23	11.4	7:29	6:50
24	11.4	7:28	6:50
25	11.4	7:27	6:50
26	11.4	7:26	6:51
27	11.4	7:25	6:51
28	11.5	7:24	6:51
29	11.5	7:23	6:52
30	11.5	7:22	6:52
31	11.5	7:21	6:52

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.87 kWh/m².

For context, solar energy here swings from a low near 3.76 kWh/m² to a high of 5.95 kWh/m² in November across the year — August's 4.87 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	31
Solar energy (kWh/m²)	4.4	4.4	4.4	4.5	4.5	4.5	4.6	4.6	4.7	4.7	4.7	4.8	4.8	4.8	4.8	4.9	4.9	5.0	5.0	5.0	5.0	5.1	5.1	5.1	5.2	5.2	5.2	5.3	5.3	5.3	5.3
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	Bright

	Solar energy (kWh/m²)	Level
1	4.4	Bright
2	4.4	Bright
3	4.4	Bright
4	4.5	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	4.8	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	5.1	Bright
23	5.1	Bright
24	5.1	Bright
25	5.2	Bright
26	5.2	Bright
27	5.2	Bright
28	5.3	Bright
29	5.3	Bright
30	5.3	Bright
31	5.3	Bright

Planning a trip in August

Hazard calendar for Serra Negra

In seasonPeak

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

Serra Negra's rainy season runs October–March, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is August a good time to visit Serra Negra?

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

8.0

Sightseeing

3rd-best month of the year

7.8

Beach & pool

1st-best month of the year

August is one of the better times to visit Serra Negra for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Serra Negra in August

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

In August, Serra Negra sees daytime highs around 26°C and nights near 14°C. Worth packing: light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Serra Negra in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Serra Negra peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 6 (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)	15	15	12	9	7	6	6	8	8	11	14	14
Level	Extreme	Extreme	Extreme	Very high	High	High	High	Very high	Very high	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	15	Extreme
Feb	15	Extreme
Mar	12	Extreme
Apr	9	Very high
May	7	High
Jun	6	High
Jul	6	High
Aug	8	Very high
Sep	8	Very high
Oct	11	Extreme
Nov	14	Extreme
Dec	14	Extreme

Air quality in Serra Negra in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Serra Negra is worst in September — around 27 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 15 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)	15	16	18	21	24	25	26	25	27	20	15	15
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	15	Moderate
Feb	16	Moderate
Mar	18	Moderate
Apr	21	Moderate
May	24	Moderate
Jun	25	Moderate
Jul	26	Moderate
Aug	25	Moderate
Sep	27	Moderate
Oct	20	Moderate
Nov	15	Moderate
Dec	15	Moderate

Location & terrain

Where is Serra Negra?

Serra Negra sits at 22.6°S, 46.7°W, 937 m above sea level, in Brazil. The nearest listed city is Amparo, 12 km away.

Topography around Serra Negra

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

Within 3 km, the terrain around Serra Negra has significant variations in elevation — a maximum elevation change of 495 m around an average of 1,012 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 669 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,505 m.

The land around Serra Negra is covered by trees (45%) and grassland (38%) within 3 km, grassland (45%) and trees (43%) within 16 km, and trees (39%) and grassland (35%) within 80 km.

3 km

495 m

trees 45%

16 km

669 m

grassland 45%

80 km

1,505 m

trees 39%

treesgrasslandcroplandartificial surfaceswater

← July Serra Negra year-round climate September →Best places to visit in August

August weather nearby: Amparo 12 km · Águas de Lindóia 17 km · Socorro 18 km · Pinhalzinho 22 km · Santo Antônio de Posse 22 km · Itapira 23 km · Monte Sião 24 km · Jaguariúna 31 km

Brazil travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / N; 127 / 220 V · 60 Hz
Prices: ≈ 46% of US; price level, 2025
GDP per capita: $10,713; 2025
Happiness: 6.6 / 10; World Happiness, 2025
Safe drinking water: 89%; of population, 2024
Homicide rate: 19.3; per 100k, 2023
Road deaths: 16; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Low; EF EPI 482
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 Serra Negra (-22.6122°, -46.7006°, elevation 937 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	25	13
2	25	13
3	25	13
4	25	13
5	26	13
6	26	14
7	26	14
8	26	14
9	26	14
10	26	14
11	26	14
12	26	14
13	26	14
14	26	14
15	26	14
16	26	14
17	26	14
18	26	14
19	26	14
20	27	14
21	27	14
22	27	14
23	27	14
24	27	15
25	27	15
26	27	15
27	27	15
28	27	15
29	28	15
30	28	15
31	28	15

	Clearer (%)	Cloudier (%)
1	72	28
2	72	28
3	72	28
4	72	28
5	72	28
6	72	28
7	72	28
8	72	28
9	73	27
10	74	26
11	74	26
12	75	25
13	75	25
14	75	25
15	76	24
16	76	24
17	76	24
18	77	23
19	77	23
20	77	23
21	77	23
22	77	23
23	77	23
24	78	22
25	78	22
26	78	22
27	78	22
28	78	22
29	77	23
30	77	23
31	77	23

	Rain chance (%)
1	12
2	12
3	12
4	12
5	12
6	12
7	12
8	12
9	12
10	12
11	12
12	12
13	12
14	12
15	12
16	12
17	12
18	13
19	13
20	13
21	13
22	13
23	14
24	14
25	15
26	15
27	16
28	16
29	17
30	18
31	18

	Dry (%)	Comfortable (%)	Humid (%)
1	76	20	4
2	76	20	4
3	76	20	4
4	75	21	4
5	75	21	4
6	75	21	4
7	75	21	4
8	75	21	4
9	75	21	4
10	75	21	4
11	75	21	4
12	74	21	5
13	74	21	5
14	74	21	5
15	74	21	5
16	74	21	5
17	74	21	5
18	74	21	5
19	74	21	5
20	73	22	5
21	73	22	5
22	72	23	5
23	72	23	5
24	71	24	5
25	69	25	6
26	69	25	6
27	68	26	6
28	67	26	7
29	66	27	7
30	65	27	8
31	63	28	9

	Avg high (°C)	Avg low (°C)
1	25	13
2	25	13
3	25	13
4	25	13
5	26	13
6	26	14
7	26	14
8	26	14
9	26	14
10	26	14
11	26	14
12	26	14
13	26	14
14	26	14
15	26	14
16	26	14
17	26	14
18	26	14
19	26	14
20	27	14
21	27	14
22	27	14
23	27	14
24	27	15
25	27	15
26	27	15
27	27	15
28	27	15
29	28	15
30	28	15
31	28	15

	Clearer (%)	Cloudier (%)
1	72	28
2	72	28
3	72	28
4	72	28
5	72	28
6	72	28
7	72	28
8	72	28
9	73	27
10	74	26
11	74	26
12	75	25
13	75	25
14	75	25
15	76	24
16	76	24
17	76	24
18	77	23
19	77	23
20	77	23
21	77	23
22	77	23
23	77	23
24	78	22
25	78	22
26	78	22
27	78	22
28	78	22
29	77	23
30	77	23
31	77	23

	Rain chance (%)
1	12
2	12
3	12
4	12
5	12
6	12
7	12
8	12
9	12
10	12
11	12
12	12
13	12
14	12
15	12
16	12
17	12
18	13
19	13
20	13
21	13
22	13
23	14
24	14
25	15
26	15
27	16
28	16
29	17
30	18
31	18

	Dry (%)	Comfortable (%)	Humid (%)
1	76	20	4
2	76	20	4
3	76	20	4
4	75	21	4
5	75	21	4
6	75	21	4
7	75	21	4
8	75	21	4
9	75	21	4
10	75	21	4
11	75	21	4
12	74	21	5
13	74	21	5
14	74	21	5
15	74	21	5
16	74	21	5
17	74	21	5
18	74	21	5
19	74	21	5
20	73	22	5
21	73	22	5
22	72	23	5
23	72	23	5
24	71	24	5
25	69	25	6
26	69	25	6
27	68	26	6
28	67	26	7
29	66	27	7
30	65	27	8
31	63	28	9

	Avg high (°C)	Avg low (°C)
1	25	13
2	25	13
3	25	13
4	25	13
5	26	13
6	26	14
7	26	14
8	26	14
9	26	14
10	26	14
11	26	14
12	26	14
13	26	14
14	26	14
15	26	14
16	26	14
17	26	14
18	26	14
19	26	14
20	27	14
21	27	14
22	27	14
23	27	14
24	27	15
25	27	15
26	27	15
27	27	15
28	27	15
29	28	15
30	28	15
31	28	15

	Clearer (%)	Cloudier (%)
1	72	28
2	72	28
3	72	28
4	72	28
5	72	28
6	72	28
7	72	28
8	72	28
9	73	27
10	74	26
11	74	26
12	75	25
13	75	25
14	75	25
15	76	24
16	76	24
17	76	24
18	77	23
19	77	23
20	77	23
21	77	23
22	77	23
23	77	23
24	78	22
25	78	22
26	78	22
27	78	22
28	78	22
29	77	23
30	77	23
31	77	23

	Rain chance (%)
1	12
2	12
3	12
4	12
5	12
6	12
7	12
8	12
9	12
10	12
11	12
12	12
13	12
14	12
15	12
16	12
17	12
18	13
19	13
20	13
21	13
22	13
23	14
24	14
25	15
26	15
27	16
28	16
29	17
30	18
31	18

	Dry (%)	Comfortable (%)	Humid (%)
1	76	20	4
2	76	20	4
3	76	20	4
4	75	21	4
5	75	21	4
6	75	21	4
7	75	21	4
8	75	21	4
9	75	21	4
10	75	21	4
11	75	21	4
12	74	21	5
13	74	21	5
14	74	21	5
15	74	21	5
16	74	21	5
17	74	21	5
18	74	21	5
19	74	21	5
20	73	22	5
21	73	22	5
22	72	23	5
23	72	23	5
24	71	24	5
25	69	25	6
26	69	25	6
27	68	26	6
28	67	26	7
29	66	27	7
30	65	27	8
31	63	28	9