Antananarivo weather in August

In August, Antananarivo sees average daytime highs of 21°C and overnight lows near 10°C, with 3 mm of rain across 0.7 wet days and about 11.4 hours of daylight. It is the 10th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 21°C by the end. The sky is clear or mostly clear about 46% of the time in August, and the air most often feels dry.

Daylight stretches from about 11 h 06 min at the start of August to 11 h 36 min by month's end. Set against the rest of the year, August is Antananarivo's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Antananarivo's year-round climate.

Daytime high: 21°; 10th warmest
Overnight low: 10°; 2nd coldest
Rainfall: 3 mm; 0.7 wet days
Daylight: 11 h 24 min; 6:13 AM – 5:35 PM
Cloud cover: 44%; 3rd clearest
Wind: 12 km/h; 2nd windiest
Solar energy: 4.77 kWh/m²
Travel score: 8.1; out of 10

Antananarivo is capital and largest city of Madagascar.

Air quality: High; PM2.5 32 µg/m³ · 2020
Founded: 1625

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

← July Antananarivo 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 20°C in the first days to 21°C by the end.

A typical August day in Antananarivo reaches about 21°C in the afternoon and slips back to 10°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 24°C. Set against its neighbours, August runs about 1°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)	20	20	20	20	20	20	20	20	20	20	20	20	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	22	22
Avg low (°C)	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10

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

Antananarivo weather by month

How August compares with the rest of the year at a glance. August is the 10th-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	26° / 17°	287	22.1	13	4.7
Feb	25° / 17°	248	20	12.6	4.8
Mar	25° / 17°	143	15.4	12.1	5.8
Apr	24° / 15°	32	7	11.6	7.5
May	23° / 13°	12	2.4	11.1	8.1
Jun	20° / 11°	4	0.7	10.9	7.8
Jul	19° / 10°	5	1	11	7.6
Aug	21° / 10°	3	0.7	11.4	8.1
Sep	23° / 11°	5	1.1	11.9	8.6
Oct	25° / 13°	27	4.8	12.4	7.9
Nov	27° / 15°	79	10.3	12.9	6.6
Dec	26° / 17°	181	17.5	13.1	5.3

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 36%.

	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 (%)	55	55	56	56	56	57	58	60	60	61	62	63	63	64	65	67	67	68	68	68	69	69	69	69	69	68	68	68	68	68	67
Cloudier (%)	45	45	44	44	44	43	42	40	40	39	38	37	37	36	35	33	33	32	32	32	31	31	31	31	31	32	32	32	32	32	33

	Clearer (%)	Cloudier (%)
1	55	45
2	55	45
3	56	44
4	56	44
5	56	44
6	57	43
7	58	42
8	60	40
9	60	40
10	61	39
11	62	38
12	63	37
13	63	37
14	64	36
15	65	35
16	67	33
17	67	33
18	68	32
19	68	32
20	68	32
21	69	31
22	69	31
23	69	31
24	69	31
25	69	31
26	68	32
27	68	32
28	68	32
29	68	32
30	68	32
31	67	33

Chance of precipitation in August

Any precipitation

Antananarivo gets around 3 mm of rain over 0.7 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 2% and peaks near 5% 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 (%)	5	4	4	4	3	3	3	3	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2

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

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 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	31
Dry (%)	97	97	98	98	98	98	98	99	99	99	99	99	99	99	99	99	99	99	99	99	99	98	98	98	98	98	98	98	98	98	98
Comfortable (%)	3	3	2	2	2	2	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	2	2	2	2	2	2	2

	Dry (%)	Comfortable (%)
1	97	3
2	97	3
3	98	2
4	98	2
5	98	2
6	98	2
7	98	2
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	99	1
19	99	1
20	99	1
21	99	1
22	98	2
23	98	2
24	98	2
25	98	2
26	98	2
27	98	2
28	98	2
29	98	2
30	98	2
31	98	2

Wind in August

Winds average 12 km/h in August.

Across August, 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	31
Wind speed (km/h)	13	13	13	13	13	13	13	12	12	12	12	12	12	12	12	12	12	12	12	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	calm	calm	calm	calm	calm	calm	calm	calm	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	12	light breeze
9	12	light breeze
10	12	light breeze
11	12	light breeze
12	12	light breeze
13	12	light breeze
14	12	light breeze
15	12	light breeze
16	12	light breeze
17	12	light breeze
18	12	calm
19	12	calm
20	12	calm
21	12	calm
22	12	calm
23	12	calm
24	12	calm
25	12	calm
26	12	light breeze
27	12	light breeze
28	12	light breeze
29	12	light breeze
30	12	light breeze
31	12	light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 06 min at the start of August to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over August. Sunrise moves from 6:22 AM to 6:02 AM, and sunset from 5:30 PM to 5:38 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)	11.1	11.1	11.2	11.2	11.2	11.2	11.2	11.2	11.2	11.3	11.3	11.3	11.3	11.3	11.3	11.4	11.4	11.4	11.4	11.4	11.4	11.5	11.5	11.5	11.5	11.5	11.5	11.6	11.6	11.6	11.6
Sunrise (AM)	6:22	6:21	6:21	6:20	6:20	6:19	6:19	6:18	6:18	6:17	6:17	6:16	6:15	6:15	6:14	6:13	6:13	6:12	6:11	6:11	6:10	6:09	6:08	6:07	6:07	6:06	6:05	6:04	6:03	6:03	6:02
Sunset (PM)	5:30	5:30	5:31	5:31	5:31	5:32	5:32	5:32	5:33	5:33	5:33	5:33	5:34	5:34	5:34	5:35	5:35	5:35	5:35	5:36	5:36	5:36	5:36	5:37	5:37	5:37	5:37	5:37	5:38	5:38	5:38

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.1	6:22	5:30
2	11.1	6:21	5:30
3	11.2	6:21	5:31
4	11.2	6:20	5:31
5	11.2	6:20	5:31
6	11.2	6:19	5:32
7	11.2	6:19	5:32
8	11.2	6:18	5:32
9	11.2	6:18	5:33
10	11.3	6:17	5:33
11	11.3	6:17	5:33
12	11.3	6:16	5:33
13	11.3	6:15	5:34
14	11.3	6:15	5:34
15	11.3	6:14	5:34
16	11.4	6:13	5:35
17	11.4	6:13	5:35
18	11.4	6:12	5:35
19	11.4	6:11	5:35
20	11.4	6:11	5:36
21	11.4	6:10	5:36
22	11.5	6:09	5:36
23	11.5	6:08	5:36
24	11.5	6:07	5:37
25	11.5	6:07	5:37
26	11.5	6:06	5:37
27	11.5	6:05	5:37
28	11.6	6:04	5:37
29	11.6	6:03	5:38
30	11.6	6:03	5:38
31	11.6	6:02	5:38

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.77 kWh/m².

For context, solar energy here swings from a low near 3.8 kWh/m² to a high of 6.7 kWh/m² in November across the year — August's 4.77 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)	4.2	4.2	4.3	4.3	4.3	4.4	4.4	4.5	4.5	4.5	4.6	4.6	4.7	4.7	4.8	4.8	4.8	4.9	4.9	5.0	5.0	5.0	5.0	5.1	5.1	5.1	5.1	5.2	5.2	5.2	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	4.2	Bright
2	4.2	Bright
3	4.3	Bright
4	4.3	Bright
5	4.3	Bright
6	4.4	Bright
7	4.4	Bright
8	4.5	Bright
9	4.5	Bright
10	4.5	Bright
11	4.6	Bright
12	4.6	Bright
13	4.7	Bright
14	4.7	Bright
15	4.8	Bright
16	4.8	Bright
17	4.8	Bright
18	4.9	Bright
19	4.9	Bright
20	5.0	Bright
21	5.0	Bright
22	5.0	Bright
23	5.0	Bright
24	5.1	Bright
25	5.1	Bright
26	5.1	Bright
27	5.1	Bright
28	5.2	Bright
29	5.2	Bright
30	5.2	Bright
31	5.3	Bright

Planning a trip in August

Hazard calendar for Antananarivo

In seasonPeak

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

Antananarivo's monsoon runs December–March, when most of the year's rain falls.

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is August a good time to visit Antananarivo?

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

8.1

Sightseeing

2nd-best month of the year

4.7

Beach & pool

8th-best month of the year

August is one of the better times to visit Antananarivo for general sightseeing.

What to pack for Antananarivo in August

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

In August, Antananarivo sees daytime highs around 21°C and nights near 10°C. Worth packing: sun protection.

sun protection

UV index in Antananarivo in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Antananarivo peaks around February 11 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 7 (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)	16	16	14	11	9	7	8	10	12	13	13	15
Level	Extreme	Extreme	Extreme	Extreme	Very high	High	Very high	Very high	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	16	Extreme
Feb	16	Extreme
Mar	14	Extreme
Apr	11	Extreme
May	9	Very high
Jun	7	High
Jul	8	Very high
Aug	10	Very high
Sep	12	Extreme
Oct	13	Extreme
Nov	13	Extreme
Dec	15	Extreme

Air quality in Antananarivo 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 Antananarivo is worst in October — around 49 µg/m³ PM2.5 (poor), about 3.7× the cleanest month (January, 13 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Antananarivo's WHO annual average of 32 µg/m³.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	13	18	23	30	43	45	43	38	31	49	34	17
Level	Moderate	Moderate	Moderate	Moderate	Poor	Poor	Poor	Poor	Moderate	Poor	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	13	Moderate
Feb	18	Moderate
Mar	23	Moderate
Apr	30	Moderate
May	43	Poor
Jun	45	Poor
Jul	43	Poor
Aug	38	Poor
Sep	31	Moderate
Oct	49	Poor
Nov	34	Moderate
Dec	17	Moderate

Location & terrain

Where is Antananarivo?

Antananarivo sits at 18.9°S, 47.5°E, 1,274 m above sea level, in Madagascar. The nearest listed city is Ivato, 14 km away.

Topography around Antananarivo

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

Within 3 km, the terrain around Antananarivo has only modest variations in elevation — a maximum elevation change of 181 m around an average of 1,278 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 366 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,018 m.

The land around Antananarivo is covered by artificial surfaces (76%) within 3 km, cropland (47%) and grassland (32%) within 16 km, and grassland (62%) and cropland (21%) within 80 km.

3 km

181 m

artificial surfaces 76%

16 km

366 m

cropland 47%

80 km

2,018 m

grassland 62%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwater

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

August weather nearby: Ivato 14 km · Ambohidratrimo 15 km · Alarobia 22 km · Imerintsiatosika 24 km · Manjakandriana 28 km · Ambohitrolomahitsy 28 km · Ankazondandy 35 km · Sadabe 36 km

Madagascar travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / E; 220 V · 50 Hz
Prices: ≈ 31% of US; price level, 2025
GDP per capita: $599; 2025
Happiness: 4.2 / 10; World Happiness, 2025
Safe drinking water: 22%; of population, 2024
Road deaths: 29.2; per 100k/yr, 2019
Income group: Low; World Bank
English: Low; EF EPI 457
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 Antananarivo (-18.9137°, 47.5361°, elevation 1,274 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	20	10
2	20	10
3	20	10
4	20	10
5	20	10
6	20	10
7	20	10
8	20	10
9	20	10
10	20	10
11	20	10
12	20	10
13	21	10
14	21	10
15	21	10
16	21	10
17	21	10
18	21	10
19	21	10
20	21	10
21	21	10
22	21	10
23	21	10
24	21	10
25	21	10
26	21	10
27	21	10
28	21	10
29	21	10
30	22	10
31	22	10

	Clearer (%)	Cloudier (%)
1	55	45
2	55	45
3	56	44
4	56	44
5	56	44
6	57	43
7	58	42
8	60	40
9	60	40
10	61	39
11	62	38
12	63	37
13	63	37
14	64	36
15	65	35
16	67	33
17	67	33
18	68	32
19	68	32
20	68	32
21	69	31
22	69	31
23	69	31
24	69	31
25	69	31
26	68	32
27	68	32
28	68	32
29	68	32
30	68	32
31	67	33

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

	Dry (%)	Comfortable (%)
1	97	3
2	97	3
3	98	2
4	98	2
5	98	2
6	98	2
7	98	2
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	99	1
19	99	1
20	99	1
21	99	1
22	98	2
23	98	2
24	98	2
25	98	2
26	98	2
27	98	2
28	98	2
29	98	2
30	98	2
31	98	2

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

	Clearer (%)	Cloudier (%)
1	55	45
2	55	45
3	56	44
4	56	44
5	56	44
6	57	43
7	58	42
8	60	40
9	60	40
10	61	39
11	62	38
12	63	37
13	63	37
14	64	36
15	65	35
16	67	33
17	67	33
18	68	32
19	68	32
20	68	32
21	69	31
22	69	31
23	69	31
24	69	31
25	69	31
26	68	32
27	68	32
28	68	32
29	68	32
30	68	32
31	67	33

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

	Dry (%)	Comfortable (%)
1	97	3
2	97	3
3	98	2
4	98	2
5	98	2
6	98	2
7	98	2
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	99	1
19	99	1
20	99	1
21	99	1
22	98	2
23	98	2
24	98	2
25	98	2
26	98	2
27	98	2
28	98	2
29	98	2
30	98	2
31	98	2

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

	Clearer (%)	Cloudier (%)
1	55	45
2	55	45
3	56	44
4	56	44
5	56	44
6	57	43
7	58	42
8	60	40
9	60	40
10	61	39
11	62	38
12	63	37
13	63	37
14	64	36
15	65	35
16	67	33
17	67	33
18	68	32
19	68	32
20	68	32
21	69	31
22	69	31
23	69	31
24	69	31
25	69	31
26	68	32
27	68	32
28	68	32
29	68	32
30	68	32
31	67	33

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

	Dry (%)	Comfortable (%)
1	97	3
2	97	3
3	98	2
4	98	2
5	98	2
6	98	2
7	98	2
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	99	1
19	99	1
20	99	1
21	99	1
22	98	2
23	98	2
24	98	2
25	98	2
26	98	2
27	98	2
28	98	2
29	98	2
30	98	2
31	98	2