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Puerto San José, Guatemala climate

Aw Tropical savanna (dry winter)

Puerto San José has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is April with an average daily high near 34°C, while the coldest is January averaging around 19°C at night. Precipitation totals about 965 mm a year and is strongly seasonal — June alone averages 214 mm while January barely receives 0 mm.

☀️ All year

Hot

Daytime highs near 34°C most of the year.

🌙 Nights

Stays warm

Even the coolest nights stay near 19°C.

🌧️ Rain

Moderate rainfall

About 965 mm of rain a year.

Wettest in June

⛅ 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)

Puerto San José climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	33	33	34	34	33	32	33	33	32	32	32	32
Avg temp (°C)	26	27	28	29	29	28	28	28	28	27	27	26
Avg low (°C)	19	20	21	23	24	23	23	23	23	23	22	20
Precipitation (mm)	0	12	4	36	126	214	161	191	—	165	55	1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	33	33	34	34	33	32
Avg temp (°C)	26	27	28	29	29	28
Avg low (°C)	19	20	21	23	24	23
Precipitation (mm)	0	12	4	36	126	214

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	33	33	32	32	32	32
Avg temp (°C)	28	28	28	27	27	26
Avg low (°C)	23	23	23	23	22	20
Precipitation (mm)	161	191	—	165	55	1

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	20	22	29	47	69	75	68	71	77	66	41	23
Relative humidity (%)	66	64	63	66	74	81	78	80	83	82	75	70
Wind speed (m/s)	3.1	2.9	2.8	2.5	2.2	2.0	1.9	1.9	2.0	2.1	2.5	2.8

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	20	22	29	47	69	75
Relative humidity (%)	66	64	63	66	74	81
Wind speed (m/s)	3.1	2.9	2.8	2.5	2.2	2.0

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	68	71	77	66	41	23
Relative humidity (%)	78	80	83	82	75	70
Wind speed (m/s)	1.9	1.9	2.0	2.1	2.5	2.8

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at San Jose, a weather station, about 2 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 →