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Tofino vs Siena
Comparing Tofino change · Siena change
Siena is the warmer of the two — about 4°C on the annual average; Tofino is the wetter, with 2517 mm more rain a year, and Siena the sunnier.
How the seasons compare
The differences between Tofino and Siena, in everyday terms.
Summers
Siena has far hotter summers
Tofino: Mild
Siena: Hot
Winters
Tofino has milder winters
Tofino: Chilly
Siena: Chilly
Rain & snow
Tofino is much wetter
Tofino: Very wet
Siena: Moderate rainfall
Sky
Siena is sunnier
Tofino: Often cloudy
Siena: Partly cloudy
Month-by-month charts
Temperature
Siena is the warmer of the two — about 4°C on the annual average.
Precipitation
Tofino is the wetter — about 2517 mm more across the year.
Clear skies
Siena 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) Siena runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tofino | 8 | 9 | 10 | 12 | 15 | 17 | 19 | 19 | 18 | 14 | 10 | 8 |
| Siena | 9 | 11 | 15 | 19 | 23 | 28 | 31 | 32 | 26 | 20 | 14 | 10 |
| Difference | +1 | +2 | +5 | +7 | +8 | +11 | +12 | +12 | +8 | +6 | +3 | +2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tofino | 8 | 9 | 10 | 12 | 15 | 17 |
| Siena | 9 | 11 | 15 | 19 | 23 | 28 |
| Difference | +1 | +2 | +5 | +7 | +8 | +11 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tofino | 19 | 19 | 18 | 14 | 10 | 8 |
| Siena | 31 | 32 | 26 | 20 | 14 | 10 |
| Difference | +12 | +12 | +8 | +6 | +3 | +2 |
Avg low (°C) Siena runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tofino | 3 | 2 | 3 | 4 | 7 | 9 | 11 | 11 | 9 | 7 | 4 | 2 |
| Siena | 0 | 0 | 3 | 6 | 10 | 13 | 15 | 16 | 12 | 9 | 5 | 1 |
| Difference | -2 | -2 | — | +1 | +3 | +4 | +4 | +4 | +2 | +2 | +1 | -1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tofino | 3 | 2 | 3 | 4 | 7 | 9 |
| Siena | 0 | 0 | 3 | 6 | 10 | 13 |
| Difference | -2 | -2 | — | +1 | +3 | +4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tofino | 11 | 11 | 9 | 7 | 4 | 2 |
| Siena | 15 | 16 | 12 | 9 | 5 | 1 |
| Difference | +4 | +4 | +2 | +2 | +1 | -1 |
Precipitation (mm) Tofino runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tofino | 519 | 320 | 346 | 273 | 146 | 125 | 75 | 107 | 170 | 340 | 485 | 475 |
| Siena | 53 | 57 | 64 | 71 | 74 | 53 | 42 | 43 | 96 | 109 | 121 | 82 |
| Difference | -466 | -263 | -283 | -202 | -72 | -72 | -33 | -64 | -74 | -231 | -364 | -393 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tofino | 519 | 320 | 346 | 273 | 146 | 125 |
| Siena | 53 | 57 | 64 | 71 | 74 | 53 |
| Difference | -466 | -263 | -283 | -202 | -72 | -72 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tofino | 75 | 107 | 170 | 340 | 485 | 475 |
| Siena | 42 | 43 | 96 | 109 | 121 | 82 |
| Difference | -33 | -64 | -74 | -231 | -364 | -393 |
Snowfall (cm)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tofino | 7 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 7 |
| Siena | — | — | — | — | — | — | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tofino | 7 | 6 | 6 | 0 | 0 | 0 |
| Siena | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tofino | 0 | 0 | 0 | 0 | 2 | 7 |
| Siena | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — |
Cloud cover (%) Tofino runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tofino | 79 | 75 | 78 | 75 | 73 | 72 | 61 | 63 | 58 | 70 | 77 | 80 |
| Siena | 65 | 61 | 62 | 65 | 62 | 50 | 36 | 39 | 53 | 62 | 69 | 65 |
| Difference | -14 | -14 | -16 | -11 | -11 | -22 | -25 | -25 | -6 | -7 | -8 | -15 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tofino | 79 | 75 | 78 | 75 | 73 | 72 |
| Siena | 65 | 61 | 62 | 65 | 62 | 50 |
| Difference | -14 | -14 | -16 | -11 | -11 | -22 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tofino | 61 | 63 | 58 | 70 | 77 | 80 |
| Siena | 36 | 39 | 53 | 62 | 69 | 65 |
| Difference | -25 | -25 | -6 | -7 | -8 | -15 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tofino | 88 | 85 | 85 | 83 | 83 | 85 | 86 | 87 | 86 | 87 | 87 | 88 |
| Siena | 91 | 86 | 82 | 78 | 73 | 63 | 54 | 55 | 68 | 80 | 89 | 91 |
| Difference | +2 | +1 | -3 | -5 | -9 | -22 | -33 | -32 | -19 | -7 | +1 | +3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tofino | 88 | 85 | 85 | 83 | 83 | 85 |
| Siena | 91 | 86 | 82 | 78 | 73 | 63 |
| Difference | +2 | +1 | -3 | -5 | -9 | -22 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tofino | 86 | 87 | 86 | 87 | 87 | 88 |
| Siena | 54 | 55 | 68 | 80 | 89 | 91 |
| Difference | -33 | -32 | -19 | -7 | +1 | +3 |
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. Tofino trends → · Siena trends →
Methodology & sources
Tofino
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Ucluelet Kennedy Camp, a weather station, about 36 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.
Siena
Temperature & precipitation — the official 1991–2020 climate normals from the WMO's CLINO 1991–2020 collection, measured at Arezzo, about 45 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.