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Valparaíso vs Bologna
Comparing Valparaíso change · Bologna change
Valparaíso and Bologna have nearly identical year-round temperatures, and Valparaíso the sunnier.
How the seasons compare
The differences between Valparaíso and Bologna, in everyday terms.
Summers
Bologna has far hotter summers
Valparaíso: Mild
Bologna: Hot
Winters
Valparaíso has much milder winters
Valparaíso: Cool
Bologna: Cold
Rain & snow
Similar yearly rainfall
Valparaíso: Fairly dry
Bologna: Moderate rainfall
Sky
Valparaíso is sunnier
Valparaíso: Partly cloudy
Bologna: Partly cloudy
Month-by-month charts
Temperature
Valparaíso and Bologna run remarkably close all year.
Precipitation
Bologna is the wetter — about 78 mm more across the year.
Clear skies
Valparaíso 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) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Valparaíso | 23 | 23 | 22 | 20 | 17 | 16 | 15 | 16 | 17 | 19 | 21 | 22 |
| Bologna | 7 | 10 | 15 | 19 | 24 | 29 | 31 | 31 | 26 | 19 | 13 | 8 |
| Difference | -16 | -13 | -7 | -1 | +7 | +13 | +16 | +16 | +9 | +1 | -8 | -15 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Valparaíso | 23 | 23 | 22 | 20 | 17 | 16 |
| Bologna | 7 | 10 | 15 | 19 | 24 | 29 |
| Difference | -16 | -13 | -7 | -1 | +7 | +13 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Valparaíso | 15 | 16 | 17 | 19 | 21 | 22 |
| Bologna | 31 | 31 | 26 | 19 | 13 | 8 |
| Difference | +16 | +16 | +9 | +1 | -8 | -15 |
Avg low (°C) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Valparaíso | 12 | 12 | 12 | 10 | 9 | 8 | 7 | 7 | 8 | 9 | 10 | 11 |
| Bologna | -0 | 1 | 4 | 8 | 13 | 17 | 19 | 19 | 15 | 11 | 6 | 1 |
| Difference | -13 | -12 | -7 | -2 | +4 | +9 | +12 | +12 | +7 | +2 | -4 | -10 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Valparaíso | 12 | 12 | 12 | 10 | 9 | 8 |
| Bologna | -0 | 1 | 4 | 8 | 13 | 17 |
| Difference | -13 | -12 | -7 | -2 | +4 | +9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Valparaíso | 7 | 7 | 8 | 9 | 10 | 11 |
| Bologna | 19 | 19 | 15 | 11 | 6 | 1 |
| Difference | +12 | +12 | +7 | +2 | -4 | -10 |
Precipitation (mm) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Valparaíso | 1 | 1 | 4 | 20 | 96 | 162 | 89 | 89 | 38 | 15 | 5 | 4 |
| Bologna | 29 | 51 | 49 | 58 | 64 | 61 | 24 | 29 | 52 | 69 | 73 | 43 |
| Difference | +28 | +50 | +45 | +38 | -32 | -101 | -65 | -60 | +14 | +53 | +68 | +39 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Valparaíso | 1 | 1 | 4 | 20 | 96 | 162 |
| Bologna | 29 | 51 | 49 | 58 | 64 | 61 |
| Difference | +28 | +50 | +45 | +38 | -32 | -101 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Valparaíso | 89 | 89 | 38 | 15 | 5 | 4 |
| Bologna | 24 | 29 | 52 | 69 | 73 | 43 |
| Difference | -65 | -60 | +14 | +53 | +68 | +39 |
Cloud cover (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Valparaíso | 36 | 39 | 43 | 48 | 61 | 60 | 55 | 54 | 54 | 50 | 42 | 39 |
| Bologna | 67 | 61 | 58 | 59 | 58 | 48 | 35 | 37 | 48 | 61 | 70 | 67 |
| Difference | +30 | +21 | +15 | +11 | -2 | -13 | -21 | -17 | -5 | +11 | +28 | +28 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Valparaíso | 36 | 39 | 43 | 48 | 61 | 60 |
| Bologna | 67 | 61 | 58 | 59 | 58 | 48 |
| Difference | +30 | +21 | +15 | +11 | -2 | -13 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Valparaíso | 55 | 54 | 54 | 50 | 42 | 39 |
| Bologna | 35 | 37 | 48 | 61 | 70 | 67 |
| Difference | -21 | -17 | -5 | +11 | +28 | +28 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Valparaíso | 53 | 54 | 55 | 58 | 63 | 67 | 70 | 71 | 70 | 64 | 57 | 53 |
| Bologna | 87 | 82 | 76 | 73 | 66 | 59 | 52 | 53 | 65 | 77 | 86 | 88 |
| Difference | +34 | +28 | +21 | +15 | +4 | -8 | -18 | -18 | -5 | +13 | +29 | +34 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Valparaíso | 53 | 54 | 55 | 58 | 63 | 67 |
| Bologna | 87 | 82 | 76 | 73 | 66 | 59 |
| Difference | +34 | +28 | +21 | +15 | +4 | -8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Valparaíso | 70 | 71 | 70 | 64 | 57 | 53 |
| Bologna | 52 | 53 | 65 | 77 | 86 | 88 |
| Difference | -18 | -18 | -5 | +13 | +29 | +34 |
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. Valparaíso trends → · Bologna trends →
Methodology & sources
Valparaíso
Temperature & precipitation — the official 1991–2020 climate normals from the WMO's CLINO 1991–2020 collection, measured at Rodelillovinadelmarad, about 8 km from the city centre.
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.
Bologna
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Bologna, a weather station, about 6 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.
← change Valparaíso · change Bologna → · Valparaíso page · Bologna page