Asunción, Paraguay climate

Aw Tropical savanna (dry winter)

Asunción has a mildly seasonal tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is January with an average daily high near 35°C, while the coldest is July averaging around 13°C at night. Precipitation totals about 1362 mm a year and is strongly seasonal — November alone averages 177 mm while August barely receives 39 mm.

☀️ All year

Hot

Daytime highs near 35°C most of the year.

🌙 Nights

Stays warm

Even the coolest nights stay near 13°C.

🌧️ Rain

Wet

About 1362 mm of rain a year.

Wettest in November

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)

Asunción climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	35	34	33	30	26	25	25	27	29	32	32	34
Avg temp (°C)	29	28	27	24	21	19	19	21	23	25	26	28
Avg low (°C)	23	22	21	19	15	14	13	14	16	19	20	22
Precipitation (mm)	128	151	125	140	129	68	46	39	59	141	177	160

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	35	34	33	30	26	25
Avg temp (°C)	29	28	27	24	21	19
Avg low (°C)	23	22	21	19	15	14
Precipitation (mm)	128	151	125	140	129	68

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	25	27	29	32	32	34
Avg temp (°C)	19	21	23	25	26	28
Avg low (°C)	13	14	16	19	20	22
Precipitation (mm)	46	39	59	141	177	160

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	59	59	55	52	53	57	53	51	55	58	52	59
Relative humidity (%)	65	67	68	73	80	82	78	70	64	68	69	69
Wind speed (km/h)	8.3	8.0	7.6	8.1	8.4	9.0	9.5	10.3	10.5	10.4	9.5	8.5

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	59	59	55	52	53	57
Relative humidity (%)	65	67	68	73	80	82
Wind speed (km/h)	8.3	8.0	7.6	8.1	8.4	9.0

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	53	51	55	58	52	59
Relative humidity (%)	78	70	64	68	69	69
Wind speed (km/h)	9.5	10.3	10.5	10.4	9.5	8.5

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Silvio Pettirossi Intl, a weather station, about 14 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →