Gallipoli Diary

by John Graham Gillam

[After the evacuation of the Peninsula, the following article, which appeared in the Westminster Gazette early in September 1915, was shown to me. After reading it through, I compared the weather forecasts that the author sets forth, and was interested to find that they agreed very closely with the notes on the weather that I had made in my Diary. The article is therefore republished here, as it may be of interest to the reader.—J. G. G.]

The dispatch of August 31st of Reuter’s Special Correspondent with the Mediterranean Forces, of which a summary was published in the Westminster Gazette of the 18th inst., speaks of the weather at the Dardanelles and as to there being two months of fine autumn weather in which to pile up stores, etc. It would be more correct to say three months rather than two.

It may be interesting to some of your readers to have a few remarks on the weather in the Marmora. Such remarks are based on the results of observations made by a close observer of nature during a period of over thirty years. The fact that particular interest was taken in weather conditions at such a place arose from a cause other than a meteorological interest in the weather, the object being an endeavour to throw light on the migration of birds. Bird naturalists in general, and especially Frenchmen, have fully recognized that the two stretches of land, namely the shores of the Bosphorus and that of the Dardanelles, being the closest points of junction between Europe and Asia, as also the European coast between these points, are the concentrated passage way or route for the huge migratory flocks of birds proceeding from the western half of Europe into Asia. Three results stand out in respect to this migration. First, the absolute regularity of the autumn migration or passage; secondly, certain conditions of weather at almost fixed dates; thirdly, the result of the weather conditions as affecting the density of the flights, the resting and stopping of various birds at certain places. The subject is a very wide one, and is somewhat foreign to the real purpose of my remarks.

Taking the month of September to begin with, the weather is very fine, a continuation of summer; cloudless skies day after day, with perhaps a rain and thunder storm or two, only—one generally in the first week, and another about September 17th, but always brought on by a north to north-west wind. As a rule the constant summer land breezes (north-east about) are of less intensity in September than in August, which allows for a keeping up of an average day temperature, as the Marmora, Bosphorus, and Dardanelles owe their moderate day temperature to these daily breezes (called “Meltem”) from the north to north-east during the summer. The wind generally dies away at sunset, which fact, however, rather tends to make the night temperature higher during the summer; the result being that, as between day and night temperature, when the north wind blows during the day, there is but little drop in the temperature and the nights are hot.

About September 21st to 24th there is, however, a marked period in the weather. It is either a calm as regards winds, and consequently very hot, or such period is marked by southerly winds, but not of any great intensity or strength—very dry, hot winds. These are the first southerly winds of autumn, but as a general rule such period is in nautical terms “calm and fine, with southerly airs.”

From such time up to the end of September the north or north-easterly winds set in again, but later on, generally about the first week of October, the winds get more to the north and north-west, and there is a heavy thunderstorm or so, and as a result a drop in temperature.

From October 10th to 14th there is a period of uncertainty; sometimes a south-westerly wind, which veers round to the north-west, and a good rain-storm. The first distinct drop in temperature now takes place (about the 10th to the 14th), one feels autumn in the air, the nights continue fairly warm; and this period continues fine and generally calm up to about the 20th—sometimes the 18th or 19th—when a well defined and almost absolutely regular period is entered upon.

This spell begins with three or four days of very heavy northerly or north-westerly wind, sometimes a gale, generally accompanied by rain for several days, and it is this period—from October 20th to 25th—which is intensely interesting to naturalists owing to the big passage of all kinds of birds, the arrival of the first woodcock, the clockwork precision of the passage of the stock-doves (pigeons); in fact, it is the moment of the big migration, when the air night and day is full of birds on the move. Towards the end of October, and in the way of a counter-coup or reaction to the northerly gales, there is generally experienced a fierce three or four days of southerly winds, sometimes gales.

It is to be noted that these gales or changes in the weather are usually of three or seven days’ duration, the first day generally being the strongest, and for some of these regular winds the natives have special names.

November almost always comes in fine, with a lovely first ten days or so. It, however, becomes rather sharp at night, and a very marked period now of cold weather is to be expected—a cold snap, in fact.