Home › Compare › Shanghai vs Castries

Shanghai vs Castries

Cfa Humid subtropicalAf Tropical rainforest

Comparing Shanghai change · Castries change

Bottom line

Castries is the warmer of the two — about 10°C on the annual average; Castries is the wetter, with 739 mm more rain a year, and Castries the sunnier.

Warmer Castries 10°C on the year

Wetter Castries 739 mm more a year

Sunnier Castries 17 pp less cloud

Colder winters Shanghai 23°C colder nights

How the seasons compare

The differences between Shanghai and Castries, in everyday terms.

Summers

Shanghai has hotter summers

Shanghai: Hot
Castries: Warm

Winters

Castries has far milder winters

Shanghai: Chilly
Castries: Stays warm

Rain & snow

Castries is wetter

Shanghai: Wet
Castries: Very wet

Sky

Castries is sunnier

Shanghai: Often cloudy
Castries: Fairly sunny

Month-by-month charts

Temperature

Castries is the warmer of the two — about 10°C on the annual average.

Precipitation

Castries is the wetter — about 739 mm more across the year.

Clear skies

Castries has the clearer skies — the higher line.

Exact monthly numbers

Tap a metric to open its full table. Desktop shows all twelve months; on a phone each metric splits into Jan–Jun and Jul–Dec.

Avg high (°C) Castries runs higher most of the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Shanghai	8	10	14	20	25	28	32	32	28	23	18	11
Castries	27	27	27	28	28	28	28	29	29	29	28	27
Difference	+19	+16	+13	+8	+3	—	-4	-3	+1	+6	+11	+16

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Shanghai	8	10	14	20	25	28
Castries	27	27	27	28	28	28
Difference	+19	+16	+13	+8	+3	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Shanghai	32	32	28	23	18	11
Castries	28	29	29	29	28	27
Difference	-4	-3	+1	+6	+11	+16

Avg low (°C) Castries runs higher most of the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Shanghai	2	4	7	12	17	22	26	26	22	17	11	4
Castries	26	25	25	26	27	27	27	28	28	28	27	26
Difference	+24	+22	+19	+14	+9	+5	+1	+2	+6	+11	+16	+22

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Shanghai	2	4	7	12	17	22
Castries	26	25	25	26	27	27
Difference	+24	+22	+19	+14	+9	+5

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Shanghai	26	26	22	17	11	4
Castries	27	28	28	28	27	26
Difference	+1	+2	+6	+11	+16	+22

Precipitation (mm) Castries runs higher most of the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Shanghai	73	64	93	73	84	213	151	217	88	63	57	45
Castries	113	76	66	90	114	134	216	291	224	246	243	149
Difference	+40	+11	-26	+16	+30	-80	+65	+74	+136	+183	+185	+104

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Shanghai	73	64	93	73	84	213
Castries	113	76	66	90	114	134
Difference	+40	+11	-26	+16	+30	-80

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Shanghai	151	217	88	63	57	45
Castries	216	291	224	246	243	149
Difference	+65	+74	+136	+183	+185	+104

Cloud cover (%) Shanghai runs higher most of the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Shanghai	62	65	67	66	70	79	69	62	63	58	57	54
Castries	38	39	42	49	52	59	50	46	51	51	46	41
Difference	-23	-26	-25	-17	-18	-20	-19	-16	-12	-7	-11	-13

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Shanghai	62	65	67	66	70	79
Castries	38	39	42	49	52	59
Difference	-23	-26	-25	-17	-18	-20

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Shanghai	69	62	63	58	57	54
Castries	50	46	51	51	46	41
Difference	-19	-16	-12	-7	-11	-13

Relative humidity (%) Varies through the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Shanghai	77	78	78	77	76	81	82	81	78	75	76	76
Castries	76	75	75	76	77	79	79	79	79	79	79	77
Difference	-2	-4	-3	-1	+1	-2	-4	-2	+1	+4	+3	+1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Shanghai	77	78	78	77	76	81
Castries	76	75	75	76	77	79
Difference	-2	-4	-3	-1	+1	-2

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Shanghai	82	81	78	75	76	76
Castries	79	79	79	79	79	77
Difference	-4	-2	+1	+4	+3	+1

How both climates are changing

Both cities are warming. Each city has its own warming trend; see its trends page for the year-by-year detail. Shanghai trends → · Castries trends →

Both cities' Köppen climate types are projected to hold steady through 2099 (SSP2-4.5).

Methodology & sources

Shanghai

Temperature & precipitation — 1991–2020 normals computed from 24 years of daily observations at Shanghai, a weather station, about 20 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.

Castries

Temperature — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.

Precipitation — 1991–2020 normals computed from 10 years of daily observations at LE Lamentin, a weather station, about 66 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →

← change Shanghai · change Castries → · Shanghai page · Castries page