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Shanghai vs Castries

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Comparing Shanghai change · Castries change

Bottom line

Castries is the warmer of the two — about 18°F on the annual average; Castries is the wetter, with 29 in more rain a year, and Castries the sunnier.

Warmer Castries 18°F on the year

Wetter Castries 29 in more a year

Sunnier Castries 17 pp less cloud

Colder winters Shanghai 42°F 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 18°F on the annual average.

Precipitation

Castries is the wetter — about 29 in 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 (°F) Castries runs higher most of the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Shanghai	47	50	57	68	77	82	90	89	82	73	64	52
Castries	80	80	80	82	83	83	83	84	84	83	83	81
Difference	+33	+30	+23	+14	+6	+1	-7	-5	+2	+10	+19	+29

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Shanghai	47	50	57	68	77	82
Castries	80	80	80	82	83	83
Difference	+33	+30	+23	+14	+6	+1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Shanghai	90	89	82	73	64	52
Castries	83	84	84	83	83	81
Difference	-7	-5	+2	+10	+19	+29

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Shanghai	36	38	44	53	63	71	78	78	72	62	51	40
Castries	78	77	78	79	80	81	81	82	82	82	81	79
Difference	+42	+39	+34	+26	+17	+10	+3	+3	+10	+20	+30	+40

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Shanghai	36	38	44	53	63	71
Castries	78	77	78	79	80	81
Difference	+42	+39	+34	+26	+17	+10

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Shanghai	78	78	72	62	51	40
Castries	81	82	82	82	81	79
Difference	+3	+3	+10	+20	+30	+40

Precipitation (in) Castries runs higher most of the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Shanghai	2.9	2.5	3.6	2.9	3.3	8.4	5.9	8.5	3.5	2.5	2.3	1.8
Castries	4.5	3	2.6	3.5	4.5	5.3	8.5	11.5	8.8	9.7	9.6	5.9
Difference	+1.6	+0.4	-1	+0.6	+1.2	-3.1	+2.6	+2.9	+5.3	+7.2	+7.3	+4.1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Shanghai	2.9	2.5	3.6	2.9	3.3	8.4
Castries	4.5	3	2.6	3.5	4.5	5.3
Difference	+1.6	+0.4	-1	+0.6	+1.2	-3.1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Shanghai	5.9	8.5	3.5	2.5	2.3	1.8
Castries	8.5	11.5	8.8	9.7	9.6	5.9
Difference	+2.6	+2.9	+5.3	+7.2	+7.3	+4.1

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